======================================
| xx__-> [    9.187270][  T199] ------------[ cut here ]------------
| [    9.187480][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/199
| [    9.187811][  T199] Modules linked in:
| [    9.188203][  T199] Tainted: [W]=WARN
[    9.188301][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.188467][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.188639][  T199] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.189141][  T199] RSP: 0018:ffa00000008f7a80 EFLAGS: 00010286
[    9.189306][  T199] RAX: 00000000ffffffa6 RBX: ff1100000c67ac80 RCX: 1ff400000011ef16
[    9.189504][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c67ad3c
[    9.189701][  T199] RBP: ff1100000eb99000 R08: 1fe22000018cf5a9 R09: ff11000009588b80
[    9.189894][  T199] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.190088][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000eb99000
[    9.190286][  T199] FS:  00007fbfb69a8840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[    9.190522][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.190695][  T199] CR2: 0000000000479648 CR3: 0000000004d5d001 CR4: 0000000000771ef0
[    9.190890][  T199] PKRU: 55555554
[    9.190987][  T199] Call Trace:
[    9.191085][  T199]  <TASK>
[    9.191153][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.191286][  T199]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.191464][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.191563][  T199]  register_netdevice (net/core/dev.c:11488)
[    9.191700][  T199]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.191861][  T199]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.191992][  T199]  register_netdev (net/core/dev.c:11552)
[    9.192122][  T199]  loopback_net_init (drivers/net/loopback.c:218)
[    9.192254][  T199]  ops_init (net/core/net_namespace.c:137)
[    9.192354][  T199]  setup_net (net/core/net_namespace.c:446)
[    9.192456][  T199]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.192584][  T199]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.192721][  T199]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.192859][  T199]  copy_net_ns (net/core/net_namespace.c:579)
[    9.192990][  T199]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.193123][  T199]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.193252][  T199]  ksys_unshare (kernel/fork.c:3243)
[    9.193382][  T199]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.193517][  T199]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.193645][  T199]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.193782][  T199]  ? __ia32_sys_open (fs/open.c:1374)
[    9.193913][  T199]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.194042][  T199]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.194170][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.194298][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.194429][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.194561][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.194726][  T199] RIP: 0033:0x7fbfb6c6abcb
[    9.194864][  T199] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.195323][  T199] RSP: 002b:00007ffc64346a68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.195523][  T199] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbfb6c6abcb
[    9.195721][  T199] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.195914][  T199] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.196105][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc64348c90
[    9.196297][  T199] R13: 0000000000000001 R14: 00007fbfb69a86f8 R15: 00007ffc64349884
| [    9.200627][  T199] ------------[ cut here ]------------
| [    9.201249][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/199
| [    9.201478][  T199] Modules linked in:
| [    9.201893][  T199] Tainted: [W]=WARN
[    9.201989][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.202150][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.202318][  T199] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.202838][  T199] RSP: 0018:ffa00000008f7918 EFLAGS: 00010286
[    9.203000][  T199] RAX: 00000000ffffffa6 RBX: ff11000009491000 RCX: 1ff400000011eee9
[    9.203192][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000094910bc
[    9.203437][  T199] RBP: ff1100000ea24000 R08: 1fe2200001292219 R09: ff11000009588b80
[    9.203635][  T199] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.203882][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ea24000
[    9.204077][  T199] FS:  00007fbfb69a8840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[    9.204302][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.204467][  T199] CR2: 0000000000479648 CR3: 0000000004d5d001 CR4: 0000000000771ef0
[    9.204715][  T199] PKRU: 55555554
[    9.204812][  T199] Call Trace:
[    9.204907][  T199]  <TASK>
[    9.204974][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.205102][  T199]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.205231][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.205329][  T199]  register_netdevice (net/core/dev.c:11488)
[    9.205464][  T199]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.205622][  T199]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.205806][  T199]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.205934][  T199]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.206063][  T199]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.206192][  T199]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.206321][  T199]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.206456][  T199]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[    9.206587][  T199]  ops_init (net/core/net_namespace.c:137)
[    9.206739][  T199]  setup_net (net/core/net_namespace.c:446)
[    9.206835][  T199]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.206962][  T199]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.207090][  T199]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.207220][  T199]  copy_net_ns (net/core/net_namespace.c:579)
[    9.207352][  T199]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.207487][  T199]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.207618][  T199]  ksys_unshare (kernel/fork.c:3243)
[    9.207800][  T199]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.207930][  T199]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.208059][  T199]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.208188][  T199]  ? __ia32_sys_open (fs/open.c:1374)
[    9.208319][  T199]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.208448][  T199]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.208578][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.208759][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.208887][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.209015][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.209174][  T199] RIP: 0033:0x7fbfb6c6abcb
[    9.209307][  T199] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.209827][  T199] RSP: 002b:00007ffc64346a68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.210020][  T199] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbfb6c6abcb
[    9.210213][  T199] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.210406][  T199] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.210601][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc64348c90
[    9.210846][  T199] R13: 0000000000000001 R14: 00007fbfb69a86f8 R15: 00007ffc64349884
| [    9.215314][  T199] ------------[ cut here ]------------
| [    9.215498][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/199
| [    9.215797][  T199] Modules linked in:
| [    9.216253][  T199] Tainted: [W]=WARN
[    9.216397][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.216616][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.216846][  T199] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.217354][  T199] RSP: 0018:ffa00000008f78f8 EFLAGS: 00010286
[    9.217573][  T199] RAX: 00000000ffffffa6 RBX: ff1100000d6dd1c0 RCX: 1ff400000011eee5
[    9.217840][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d6dd27c
[    9.218082][  T199] RBP: ff11000008441000 R08: 1fe2200001adba51 R09: ff11000009588b80
[    9.218324][  T199] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.218573][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008441000
[    9.218830][  T199] FS:  00007fbfb69a8840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[    9.219104][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.219318][  T199] CR2: 00005559e9b9f480 CR3: 0000000004d5d004 CR4: 0000000000771ef0
[    9.219567][  T199] PKRU: 55555554
[    9.219725][  T199] Call Trace:
[    9.219870][  T199]  <TASK>
[    9.219984][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.220163][  T199]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.220341][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.220501][  T199]  register_netdevice (net/core/dev.c:11488)
[    9.220693][  T199]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.220903][  T199]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.221082][  T199]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.221260][  T199]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.221438][  T199]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.221626][  T199]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.221828][  T199]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.222005][  T199]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[    9.222186][  T199]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.222366][  T199]  vti_init_net (net/ipv4/ip_vti.c:517)
[    9.222552][  T199]  ops_init (net/core/net_namespace.c:137)
[    9.222716][  T199]  setup_net (net/core/net_namespace.c:446)
[    9.222862][  T199]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.223037][  T199]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.223218][  T199]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.223397][  T199]  copy_net_ns (net/core/net_namespace.c:579)
[    9.223584][  T199]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.223776][  T199]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.223955][  T199]  ksys_unshare (kernel/fork.c:3243)
[    9.224133][  T199]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.224312][  T199]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.224498][  T199]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.224691][  T199]  ? __ia32_sys_open (fs/open.c:1374)
[    9.224871][  T199]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.225048][  T199]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.225225][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.225404][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.225593][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.225787][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.225998][  T199] RIP: 0033:0x7fbfb6c6abcb
[    9.226181][  T199] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.226703][  T199] RSP: 002b:00007ffc64346a68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.226950][  T199] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbfb6c6abcb
[    9.227191][  T199] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.227432][  T199] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.227693][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc64348c90
[    9.227936][  T199] R13: 0000000000000001 R14: 00007fbfb69a86f8 R15: 00007ffc64349884
| [    9.233271][  T199] ------------[ cut here ]------------
| [    9.233458][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/199
| [    9.233746][  T199] Modules linked in:
| [    9.234199][  T199] Tainted: [W]=WARN
[    9.234343][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.234561][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.234862][  T199] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.235419][  T199] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[    9.235702][  T199] RAX: 00000000ffffffa6 RBX: ff11000009644580 RCX: 1ff400000011ef15
[    9.235997][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000964463c
[    9.236288][  T199] RBP: ff1100000fefc000 R08: 1fe22000012c88c9 R09: ff11000009588b80
[    9.236583][  T199] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.236894][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fefc000
[    9.237190][  T199] FS:  00007fbfb69a8840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[    9.237521][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.237796][  T199] CR2: 00005559e9b9f480 CR3: 0000000004d5d004 CR4: 0000000000771ef0
[    9.238089][  T199] PKRU: 55555554
[    9.238283][  T199] Call Trace:
[    9.238487][  T199]  <TASK>
[    9.238670][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.238901][  T199]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.239131][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.239330][  T199]  register_netdevice (net/core/dev.c:11488)
[    9.239571][  T199]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.239820][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.239999][  T199]  register_netdev (net/core/dev.c:11552)
[    9.240178][  T199]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[    9.240358][  T199]  ops_init (net/core/net_namespace.c:137)
[    9.240514][  T199]  setup_net (net/core/net_namespace.c:446)
[    9.240675][  T199]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.240848][  T199]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.241025][  T199]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.241204][  T199]  copy_net_ns (net/core/net_namespace.c:579)
[    9.241387][  T199]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.241575][  T199]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.241812][  T199]  ksys_unshare (kernel/fork.c:3243)
[    9.242000][  T199]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.242184][  T199]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.242365][  T199]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.242551][  T199]  ? __ia32_sys_open (fs/open.c:1374)
[    9.242746][  T199]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.242921][  T199]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.243095][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.243271][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.243448][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.243633][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.243852][  T199] RIP: 0033:0x7fbfb6c6abcb
[    9.244034][  T199] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.244548][  T199] RSP: 002b:00007ffc64346a68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.244799][  T199] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbfb6c6abcb
[    9.245036][  T199] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.245288][  T199] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.245535][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc64348c90
[    9.245789][  T199] R13: 0000000000000001 R14: 00007fbfb69a86f8 R15: 00007ffc64349884
| [    9.256465][  T199] ------------[ cut here ]------------
| [    9.256648][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/199
| [    9.256935][  T199] Modules linked in:
| [    9.257393][  T199] Tainted: [W]=WARN
[    9.257548][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.257770][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.257990][  T199] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.258505][  T199] RSP: 0018:ffa00000008f7a68 EFLAGS: 00010286
[    9.258729][  T199] RAX: 00000000ffffffa6 RBX: ff11000009644040 RCX: 1ff400000011ef13
[    9.258978][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096440fc
[    9.259217][  T199] RBP: ff11000002531000 R08: 1fe22000012c8821 R09: ff11000009588b80
[    9.259463][  T199] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.259712][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002531000
[    9.259952][  T199] FS:  00007fbfb69a8840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[    9.260247][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.260465][  T199] CR2: 00005559e9b9f480 CR3: 0000000004d5d004 CR4: 0000000000771ef0
[    9.260722][  T199] PKRU: 55555554
[    9.260869][  T199] Call Trace:
[    9.261017][  T199]  <TASK>
[    9.261133][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.261312][  T199]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.261499][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.261682][  T199]  register_netdevice (net/core/dev.c:11488)
[    9.261865][  T199]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.262075][  T199]  register_netdev (net/core/dev.c:11552)
[    9.262251][  T199]  sit_init_net (net/ipv6/sit.c:1860)
[    9.262431][  T199]  ops_init (net/core/net_namespace.c:137)
[    9.262585][  T199]  setup_net (net/core/net_namespace.c:446)
[    9.262741][  T199]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.262916][  T199]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.263091][  T199]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.263268][  T199]  copy_net_ns (net/core/net_namespace.c:579)
[    9.263446][  T199]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.263631][  T199]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.263820][  T199]  ksys_unshare (kernel/fork.c:3243)
[    9.263995][  T199]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.264172][  T199]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.264348][  T199]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.264532][  T199]  ? __ia32_sys_open (fs/open.c:1374)
[    9.264723][  T199]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.264896][  T199]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.265072][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.265246][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.265425][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.265610][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.265827][  T199] RIP: 0033:0x7fbfb6c6abcb
[    9.266008][  T199] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.266530][  T199] RSP: 002b:00007ffc64346a68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.266786][  T199] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbfb6c6abcb
[    9.267024][  T199] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.267262][  T199] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.267509][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc64348c90
[    9.267762][  T199] R13: 0000000000000001 R14: 00007fbfb69a86f8 R15: 00007ffc64349884
| [    9.272644][  T199] ------------[ cut here ]------------
| [    9.272856][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/199
| [    9.273124][  T199] Modules linked in:
| [    9.273582][  T199] Tainted: [W]=WARN
[    9.273739][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.273949][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.274163][  T199] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.274690][  T199] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[    9.274897][  T199] RAX: 00000000ffffffa6 RBX: ff110000057c3380 RCX: 1ff400000011ef15
[    9.275136][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000057c343c
[    9.275377][  T199] RBP: ff1100000f2f4000 R08: 1fe2200000af8689 R09: ff11000009588b80
[    9.275620][  T199] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.275866][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f2f4000
[    9.276109][  T199] FS:  00007fbfb69a8840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[    9.276398][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.276613][  T199] CR2: 00005559e9b9f480 CR3: 0000000004d5d004 CR4: 0000000000771ef0
[    9.276864][  T199] PKRU: 55555554
[    9.277007][  T199] Call Trace:
[    9.277151][  T199]  <TASK>
[    9.277265][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.277442][  T199]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.277638][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.277796][  T199]  register_netdevice (net/core/dev.c:11488)
[    9.277972][  T199]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.278174][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.278355][  T199]  register_netdev (net/core/dev.c:11552)
[    9.278539][  T199]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[    9.278730][  T199]  ops_init (net/core/net_namespace.c:137)
[    9.278875][  T199]  setup_net (net/core/net_namespace.c:446)
[    9.279020][  T199]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.279196][  T199]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.279386][  T199]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.279574][  T199]  copy_net_ns (net/core/net_namespace.c:579)
[    9.279767][  T199]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.279946][  T199]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.280123][  T199]  ksys_unshare (kernel/fork.c:3243)
[    9.280300][  T199]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.280513][  T199]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.280703][  T199]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.280880][  T199]  ? __ia32_sys_open (fs/open.c:1374)
[    9.281064][  T199]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.281238][  T199]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.281413][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.281597][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.281787][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.281964][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.282171][  T199] RIP: 0033:0x7fbfb6c6abcb
[    9.282352][  T199] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.282880][  T199] RSP: 002b:00007ffc64346a68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.283122][  T199] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbfb6c6abcb
[    9.283364][  T199] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.283610][  T199] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.283859][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc64348c90
[    9.284127][  T199] R13: 0000000000000001 R14: 00007fbfb69a86f8 R15: 00007ffc64349884
| [    9.309280][  T200] ------------[ cut here ]------------
| [    9.309444][  T200] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/200
| [    9.309683][  T200] Modules linked in:
| [    9.310046][  T200] Tainted: [W]=WARN
[    9.310143][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.310340][  T200] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.310516][  T200] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.310985][  T200] RSP: 0018:ffa0000000907020 EFLAGS: 00010286
[    9.311148][  T200] RAX: 00000000ffffffa6 RBX: ff1100000c318740 RCX: 1ff4000000120dca
[    9.311339][  T200] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3187fc
[    9.311536][  T200] RBP: ff1100000eb99000 R08: 1fe2200001863101 R09: ff1100000958ae58
[    9.311731][  T200] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    9.311922][  T200] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.312130][  T200] FS:  00007f2a49127840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[    9.312356][  T200] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.312521][  T200] CR2: 0000000004e9f988 CR3: 0000000004dab004 CR4: 0000000000771ef0
[    9.312725][  T200] PKRU: 55555554
[    9.312824][  T200] Call Trace:
[    9.312922][  T200]  <TASK>
[    9.312988][  T200]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.313123][  T200]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.313247][  T200]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.313375][  T200]  __dev_notify_flags (net/core/dev.c:9787)
[    9.313512][  T200]  ? netif_change_name (net/core/dev.c:1495)
[    9.313642][  T200]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.313809][  T200]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.313937][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.314066][  T200]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.314198][  T200]  netif_change_flags (net/core/dev.c:9820)
[    9.314349][  T200]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.314486][  T200]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.314623][  T200]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.315358][  T200]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.315537][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.315671][  T200]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.315800][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.315946][  T200]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.316081][  T200]  ? __kernel_text_address (kernel/extable.c:79)
[    9.316214][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.316347][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.316557][  T200]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.316695][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.316826][  T200]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.317635][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.317771][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.317904][  T200]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.318036][  T200]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.318168][  T200]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.318314][  T200]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.318446][  T200]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.318583][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.318720][  T200]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.318851][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.318979][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.319107][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.319235][  T200]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.319362][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.319520][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.319656][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.319789][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.319922][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.320055][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.320200][  T200]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.320329][  T200]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.320461][  T200]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.320588][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.320723][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.320851][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.320982][  T200]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.321129][  T200]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.321263][  T200]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.321398][  T200]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.321534][  T200]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.321670][  T200]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.321804][  T200]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.321944][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.322074][  T200]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.322206][  T200]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.322336][  T200]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.322473][  T200]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.322603][  T200]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.322737][  T200]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.322895][  T200]  ? move_addr_to_kernel (net/socket.c:258)
[    9.323029][  T200]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.323157][  T200]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.323287][  T200]  ___sys_sendmsg (net/socket.c:2752)
[    9.323435][  T200]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.323603][  T200]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.323755][  T200]  __sys_sendmsg (net/socket.c:2784)
[    9.323887][  T200]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.324016][  T200]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.324203][  T200]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.324333][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.324468][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.324596][  T200]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.324730][  T200]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.324860][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.325018][  T200] RIP: 0033:0x7f2a4936108e
[    9.325152][  T200] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.325613][  T200] RSP: 002b:00007ffd6fe0ed20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.325810][  T200] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f2a4936108e
[    9.326003][  T200] RDX: 0000000000000000 RSI: 00007ffd6fe0edd0 RDI: 0000000000000005
[    9.326193][  T200] RBP: 00007ffd6fe0ed30 R08: 0000000000000000 R09: 0000000000000000
[    9.326390][  T200] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac0
[    9.326596][  T200] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd6fe0f4a0
| [    9.447785][  T204] ------------[ cut here ]------------
| [    9.447975][  T204] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/204
| [    9.448227][  T204] Modules linked in:
| [    9.448646][  T204] Tainted: [W]=WARN
[    9.448752][  T204] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.448916][  T204] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.449089][  T204] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.449563][  T204] RSP: 0018:ffa0000000947a80 EFLAGS: 00010286
[    9.449730][  T204] RAX: 00000000ffffffa6 RBX: ff110000057c2900 RCX: 1ff4000000128f16
[    9.449923][  T204] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000057c29bc
[    9.450116][  T204] RBP: ff1100000ff24000 R08: 1fe2200000af8539 R09: ff1100000a9ad180
[    9.450311][  T204] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.450510][  T204] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ff24000
[    9.450907][  T204] FS:  00007f8543937840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[    9.451162][  T204] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.451326][  T204] CR2: 00007f8543b417d0 CR3: 000000000a9bf003 CR4: 0000000000771ef0
[    9.451528][  T204] PKRU: 55555554
[    9.451642][  T204] Call Trace:
[    9.451747][  T204]  <TASK>
[    9.451815][  T204]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.451947][  T204]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.452078][  T204]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.452178][  T204]  register_netdevice (net/core/dev.c:11488)
[    9.452308][  T204]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.452475][  T204]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.452605][  T204]  register_netdev (net/core/dev.c:11552)
[    9.452739][  T204]  loopback_net_init (drivers/net/loopback.c:218)
[    9.452884][  T204]  ops_init (net/core/net_namespace.c:137)
[    9.452983][  T204]  setup_net (net/core/net_namespace.c:446)
[    9.453082][  T204]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.453210][  T204]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.453340][  T204]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.453476][  T204]  copy_net_ns (net/core/net_namespace.c:579)
[    9.453605][  T204]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.453765][  T204]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.453895][  T204]  ksys_unshare (kernel/fork.c:3243)
[    9.454025][  T204]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.454156][  T204]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.454284][  T204]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.454415][  T204]  ? __ia32_sys_open (fs/open.c:1374)
[    9.454552][  T204]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.454699][  T204]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.454830][  T204]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.454959][  T204]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.455090][  T204]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.455221][  T204]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.455391][  T204] RIP: 0033:0x7f8543bf9bcb
[    9.455532][  T204] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.456013][  T204] RSP: 002b:00007ffc42976fd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.456220][  T204] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f8543bf9bcb
[    9.456413][  T204] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.456845][  T204] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.457040][  T204] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc42979200
[    9.457234][  T204] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc4297a884
| [    9.461523][  T204] ------------[ cut here ]------------
| [    9.461685][  T204] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/204
| [    9.461909][  T204] Modules linked in:
| [    9.462327][  T204] Tainted: [W]=WARN
[    9.462425][  T204] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.462596][  T204] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.462769][  T204] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.463259][  T204] RSP: 0018:ffa0000000947918 EFLAGS: 00010286
[    9.463424][  T204] RAX: 00000000ffffffa6 RBX: ff1100000c882c80 RCX: 1ff4000000128ee9
[    9.463624][  T204] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c882d3c
[    9.463822][  T204] RBP: ff11000005949000 R08: 1fe22000019105a9 R09: ff1100000a9ad180
[    9.464015][  T204] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.464212][  T204] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005949000
[    9.464413][  T204] FS:  00007f8543937840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[    9.464645][  T204] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.464832][  T204] CR2: 00007f8543b417d0 CR3: 000000000a9bf003 CR4: 0000000000771ef0
[    9.465028][  T204] PKRU: 55555554
[    9.465126][  T204] Call Trace:
[    9.465222][  T204]  <TASK>
[    9.465288][  T204]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.465416][  T204]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.465551][  T204]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.465649][  T204]  register_netdevice (net/core/dev.c:11488)
[    9.465787][  T204]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.465946][  T204]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.466078][  T204]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.466208][  T204]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.466337][  T204]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.466470][  T204]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.466599][  T204]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.466736][  T204]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[    9.466867][  T204]  ops_init (net/core/net_namespace.c:137)
[    9.466966][  T204]  setup_net (net/core/net_namespace.c:446)
[    9.467065][  T204]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.467194][  T204]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.467321][  T204]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.467459][  T204]  copy_net_ns (net/core/net_namespace.c:579)
[    9.467613][  T204]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.467758][  T204]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.467895][  T204]  ksys_unshare (kernel/fork.c:3243)
[    9.468031][  T204]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.468161][  T204]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.468290][  T204]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.468419][  T204]  ? __ia32_sys_open (fs/open.c:1374)
[    9.468556][  T204]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.468692][  T204]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.468819][  T204]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.468949][  T204]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.469078][  T204]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.469207][  T204]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.469375][  T204] RIP: 0033:0x7f8543bf9bcb
[    9.469517][  T204] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.469991][  T204] RSP: 002b:00007ffc42976fd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.470187][  T204] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f8543bf9bcb
[    9.470380][  T204] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.470577][  T204] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.470776][  T204] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc42979200
[    9.470969][  T204] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc4297a884
| [    9.474780][  T204] ------------[ cut here ]------------
| [    9.474912][  T204] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/204
| [    9.475133][  T204] Modules linked in:
| [    9.475499][  T204] Tainted: [W]=WARN
[    9.475597][  T204] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.475764][  T204] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.475935][  T204] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.476399][  T204] RSP: 0018:ffa00000009478f8 EFLAGS: 00010286
[    9.476571][  T204] RAX: 00000000ffffffa6 RBX: ff1100000d6dcc80 RCX: 1ff4000000128ee5
[    9.476772][  T204] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d6dcd3c
[    9.476967][  T204] RBP: ff1100000f48c000 R08: 1fe2200001adb9a9 R09: ff1100000a9ad180
[    9.477162][  T204] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.477358][  T204] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f48c000
[    9.477559][  T204] FS:  00007f8543937840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[    9.477796][  T204] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.477960][  T204] CR2: 00007f8543b417d0 CR3: 000000000a9bf003 CR4: 0000000000771ef0
[    9.478158][  T204] PKRU: 55555554
[    9.478258][  T204] Call Trace:
[    9.478356][  T204]  <TASK>
[    9.478423][  T204]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.478561][  T204]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.478697][  T204]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.478797][  T204]  register_netdevice (net/core/dev.c:11488)
[    9.478928][  T204]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.479093][  T204]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.479226][  T204]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.479358][  T204]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.479492][  T204]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.479625][  T204]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.479763][  T204]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.479897][  T204]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[    9.480065][  T204]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.480203][  T204]  vti_init_net (net/ipv4/ip_vti.c:517)
[    9.480336][  T204]  ops_init (net/core/net_namespace.c:137)
[    9.480437][  T204]  setup_net (net/core/net_namespace.c:446)
[    9.480543][  T204]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.480678][  T204]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.480810][  T204]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.480947][  T204]  copy_net_ns (net/core/net_namespace.c:579)
[    9.481089][  T204]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.481227][  T204]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.481383][  T204]  ksys_unshare (kernel/fork.c:3243)
[    9.481520][  T204]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.481655][  T204]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.481787][  T204]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.481919][  T204]  ? __ia32_sys_open (fs/open.c:1374)
[    9.482052][  T204]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.482186][  T204]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.482322][  T204]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.482464][  T204]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.482600][  T204]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.482741][  T204]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.482911][  T204] RIP: 0033:0x7f8543bf9bcb
[    9.483052][  T204] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.483523][  T204] RSP: 002b:00007ffc42976fd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.483726][  T204] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f8543bf9bcb
[    9.483938][  T204] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.484136][  T204] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.484334][  T204] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc42979200
[    9.484594][  T204] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc4297a884
| [    9.489078][  T204] ------------[ cut here ]------------
| [    9.489308][  T204] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/204
| [    9.489540][  T204] Modules linked in:
| [    9.490022][  T204] Tainted: [W]=WARN
[    9.490120][  T204] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.490283][  T204] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.490549][  T204] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.491113][  T204] RSP: 0018:ffa0000000947a78 EFLAGS: 00010286
[    9.491286][  T204] RAX: 00000000ffffffa6 RBX: ff110000057c3a80 RCX: 1ff4000000128f15
[    9.491487][  T204] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000057c3b3c
[    9.491775][  T204] RBP: ff1100000f474000 R08: 1fe2200000af8769 R09: ff1100000a9ad180
[    9.491972][  T204] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.492165][  T204] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f474000
[    9.492452][  T204] FS:  00007f8543937840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[    9.492684][  T204] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.492850][  T204] CR2: 00007f8543b417d0 CR3: 000000000a9bf003 CR4: 0000000000771ef0
[    9.493135][  T204] PKRU: 55555554
[    9.493231][  T204] Call Trace:
[    9.493328][  T204]  <TASK>
[    9.493395][  T204]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.493618][  T204]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.493757][  T204]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.493861][  T204]  register_netdevice (net/core/dev.c:11488)
[    9.494001][  T204]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.494255][  T204]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.494387][  T204]  register_netdev (net/core/dev.c:11552)
[    9.494524][  T204]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[    9.494661][  T204]  ops_init (net/core/net_namespace.c:137)
[    9.494848][  T204]  setup_net (net/core/net_namespace.c:446)
[    9.494948][  T204]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.495081][  T204]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.495211][  T204]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.495346][  T204]  copy_net_ns (net/core/net_namespace.c:579)
[    9.495569][  T204]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.495706][  T204]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.495837][  T204]  ksys_unshare (kernel/fork.c:3243)
[    9.495967][  T204]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.496186][  T204]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.496314][  T204]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.496443][  T204]  ? __ia32_sys_open (fs/open.c:1374)
[    9.496579][  T204]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.496798][  T204]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.496927][  T204]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.497057][  T204]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.497188][  T204]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.497406][  T204]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.497571][  T204] RIP: 0033:0x7f8543bf9bcb
[    9.497711][  T204] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.498272][  T204] RSP: 002b:00007ffc42976fd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.498562][  T204] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f8543bf9bcb
[    9.498759][  T204] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.498955][  T204] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.499241][  T204] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc42979200
[    9.499437][  T204] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc4297a884
| [    9.503996][  T204] ------------[ cut here ]------------
| [    9.504223][  T204] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/204
| [    9.504457][  T204] Modules linked in:
| [    9.504921][  T204] Tainted: [W]=WARN
[    9.505019][  T204] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.505183][  T204] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.505445][  T204] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.506041][  T204] RSP: 0018:ffa0000000947a68 EFLAGS: 00010286
[    9.506206][  T204] RAX: 00000000ffffffa6 RBX: ff1100000df8e740 RCX: 1ff4000000128f13
[    9.506402][  T204] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df8e7fc
[    9.506693][  T204] RBP: ff1100000f389000 R08: 1fe2200001bf1d01 R09: ff1100000a9ad180
[    9.506887][  T204] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.507082][  T204] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f389000
[    9.507374][  T204] FS:  00007f8543937840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[    9.507611][  T204] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.507782][  T204] CR2: 00007f8543b417d0 CR3: 000000000a9bf003 CR4: 0000000000771ef0
[    9.508073][  T204] PKRU: 55555554
[    9.508172][  T204] Call Trace:
[    9.508270][  T204]  <TASK>
[    9.508341][  T204]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.508564][  T204]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.508700][  T204]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.508801][  T204]  register_netdevice (net/core/dev.c:11488)
[    9.508937][  T204]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.509193][  T204]  register_netdev (net/core/dev.c:11552)
[    9.509328][  T204]  sit_init_net (net/ipv6/sit.c:1860)
[    9.509469][  T204]  ops_init (net/core/net_namespace.c:137)
[    9.509571][  T204]  setup_net (net/core/net_namespace.c:446)
[    9.509678][  T204]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.509899][  T204]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.510031][  T204]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.510160][  T204]  copy_net_ns (net/core/net_namespace.c:579)
[    9.510291][  T204]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.510517][  T204]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.510648][  T204]  ksys_unshare (kernel/fork.c:3243)
[    9.510782][  T204]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.510910][  T204]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.511127][  T204]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.511256][  T204]  ? __ia32_sys_open (fs/open.c:1374)
[    9.511386][  T204]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.511522][  T204]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.511747][  T204]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.511878][  T204]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.512008][  T204]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.512140][  T204]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.512393][  T204] RIP: 0033:0x7f8543bf9bcb
[    9.512540][  T204] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.513114][  T204] RSP: 002b:00007ffc42976fd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.513306][  T204] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f8543bf9bcb
[    9.513635][  T204] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.513841][  T204] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.514034][  T204] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc42979200
[    9.514313][  T204] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc4297a884
| [    9.519419][  T204] ------------[ cut here ]------------
| [    9.519573][  T204] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/204
| [    9.519886][  T204] Modules linked in:
| [    9.520254][  T204] Tainted: [W]=WARN
[    9.520378][  T204] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.520634][  T204] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.520815][  T204] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.521383][  T204] RSP: 0018:ffa0000000947a78 EFLAGS: 00010286
[    9.521549][  T204] RAX: 00000000ffffffa6 RBX: ff110000104d6200 RCX: 1ff4000000128f15
[    9.521747][  T204] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104d62bc
[    9.521940][  T204] RBP: ff1100000ffec000 R08: 1fe220000209ac59 R09: ff1100000a9ad180
[    9.522139][  T204] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.522423][  T204] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ffec000
[    9.522644][  T204] FS:  00007f8543937840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[    9.522971][  T204] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.523148][  T204] CR2: 00007f8543b417d0 CR3: 000000000a9bf003 CR4: 0000000000771ef0
[    9.523350][  T204] PKRU: 55555554
[    9.523449][  T204] Call Trace:
[    9.523641][  T204]  <TASK>
[    9.523713][  T204]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.523841][  T204]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.523970][  T204]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.524074][  T204]  register_netdevice (net/core/dev.c:11488)
[    9.524292][  T204]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.524459][  T204]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.524591][  T204]  register_netdev (net/core/dev.c:11552)
[    9.524810][  T204]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[    9.524939][  T204]  ops_init (net/core/net_namespace.c:137)
[    9.525039][  T204]  setup_net (net/core/net_namespace.c:446)
[    9.525145][  T204]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.525274][  T204]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.525499][  T204]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.525630][  T204]  copy_net_ns (net/core/net_namespace.c:579)
[    9.525763][  T204]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.525894][  T204]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.526108][  T204]  ksys_unshare (kernel/fork.c:3243)
[    9.526243][  T204]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.526370][  T204]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.526505][  T204]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.526727][  T204]  ? __ia32_sys_open (fs/open.c:1374)
[    9.526857][  T204]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.526984][  T204]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.527118][  T204]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.527333][  T204]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.527466][  T204]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.527595][  T204]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.527759][  T204] RIP: 0033:0x7f8543bf9bcb
[    9.527986][  T204] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.528546][  T204] RSP: 002b:00007ffc42976fd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.528759][  T204] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f8543bf9bcb
[    9.528955][  T204] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.529244][  T204] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.529440][  T204] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc42979200
[    9.529638][  T204] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc4297a884
| [    9.560919][  T205] ------------[ cut here ]------------
| [    9.561120][  T205] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/205
| [    9.561387][  T205] Modules linked in:
| [    9.561870][  T205] Tainted: [W]=WARN
[    9.562024][  T205] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.562234][  T205] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.562461][  T205] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.563103][  T205] RSP: 0018:ffa0000000957020 EFLAGS: 00010286
[    9.563401][  T205] RAX: 00000000ffffffa6 RBX: ff110000104d7e00 RCX: 1ff400000012adca
[    9.563756][  T205] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104d7ebc
[    9.564165][  T205] RBP: ff1100000ff24000 R08: 1fe220000209afd9 R09: ff1100000e798b58
[    9.564466][  T205] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    9.564775][  T205] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.565074][  T205] FS:  00007f4b498c3840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[    9.565394][  T205] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.565611][  T205] CR2: 000000000a24f988 CR3: 000000000f607006 CR4: 0000000000771ef0
[    9.565866][  T205] PKRU: 55555554
[    9.566010][  T205] Call Trace:
[    9.566154][  T205]  <TASK>
[    9.566270][  T205]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.566458][  T205]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.566606][  T205]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.566794][  T205]  __dev_notify_flags (net/core/dev.c:9787)
[    9.566975][  T205]  ? netif_change_name (net/core/dev.c:1495)
[    9.567151][  T205]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.567330][  T205]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.567516][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.567723][  T205]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.567912][  T205]  netif_change_flags (net/core/dev.c:9820)
[    9.568092][  T205]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.568270][  T205]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.568459][  T205]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.568639][  T205]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.568865][  T205]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.569042][  T205]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.569219][  T205]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.569395][  T205]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.569583][  T205]  ? __kernel_text_address (kernel/extable.c:79)
[    9.569771][  T205]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.569953][  T205]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.570150][  T205]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.570332][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.570537][  T205]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.570745][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.570923][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.571105][  T205]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.571288][  T205]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.571479][  T205]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.571685][  T205]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.571867][  T205]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.572048][  T205]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.572229][  T205]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.572408][  T205]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.572595][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.572786][  T205]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.572978][  T205]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.573157][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.573338][  T205]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.573523][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.573717][  T205]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.573896][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.574076][  T205]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.574256][  T205]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.574434][  T205]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.574621][  T205]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.574823][  T205]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.575007][  T205]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.575182][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.575362][  T205]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.575549][  T205]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.575741][  T205]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.575922][  T205]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.576098][  T205]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.576278][  T205]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.576465][  T205]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.576643][  T205]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.576836][  T205]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.577016][  T205]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.577198][  T205]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.577379][  T205]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.577563][  T205]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.577754][  T205]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.577961][  T205]  ? move_addr_to_kernel (net/socket.c:258)
[    9.578140][  T205]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.578318][  T205]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.578507][  T205]  ___sys_sendmsg (net/socket.c:2752)
[    9.578697][  T205]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.578908][  T205]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.579097][  T205]  __sys_sendmsg (net/socket.c:2784)
[    9.579275][  T205]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.579459][  T205]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.579683][  T205]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.579864][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.580044][  T205]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.580223][  T205]  ? irq_exit_rcu (kernel/softirq.c:754)
[    9.580402][  T205]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.580622][  T205] RIP: 0033:0x7f4b49afd08e
[    9.580821][  T205] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.581328][  T205] RSP: 002b:00007ffc1436e2e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.581581][  T205] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4b49afd08e
[    9.581829][  T205] RDX: 0000000000000000 RSI: 00007ffc1436e390 RDI: 0000000000000005
[    9.582071][  T205] RBP: 00007ffc1436e2f0 R08: 0000000000000000 R09: 0000000000000000
[    9.582311][  T205] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac0
[    9.582561][  T205] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc1436ea60
| [    9.714573][  T208] ------------[ cut here ]------------
| [    9.714850][  T208] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/208
| [    9.715103][  T208] Modules linked in:
| [    9.715522][  T208] Tainted: [W]=WARN
[    9.715626][  T208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.715808][  T208] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.715992][  T208] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.716486][  T208] RSP: 0018:ffa0000000986e30 EFLAGS: 00010286
[    9.716665][  T208] RAX: 00000000ffffffa6 RBX: ff1100000c879c40 RCX: 1ff4000000130d8c
[    9.716871][  T208] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c879cfc
[    9.717078][  T208] RBP: ff110000078d9000 R08: 1fe220000190f3a1 R09: ff1100000f5d2e80
[    9.717283][  T208] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    9.717492][  T208] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000099c8784
[    9.717703][  T208] FS:  00007f4e93d37840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[    9.717949][  T208] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.718121][  T208] CR2: 00000000004eb188 CR3: 000000000f615003 CR4: 0000000000771ef0
[    9.718327][  T208] PKRU: 55555554
[    9.718431][  T208] Call Trace:
[    9.718536][  T208]  <TASK>
[    9.718608][  T208]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[    9.718788][  T208]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.718927][  T208]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.719030][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.719167][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.719305][  T208]  __dev_notify_flags (net/core/dev.c:9787)
[    9.719445][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.719587][  T208]  ? netif_change_name (net/core/dev.c:1495)
[    9.719732][  T208]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[    9.719874][  T208]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[    9.720012][  T208]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.720150][  T208]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.720288][  T208]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.720425][  T208]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[    9.720567][  T208]  veth_newlink (drivers/net/veth.c:1871)
[    9.720711][  T208]  ? veth_poll_controller (drivers/net/veth.c:1470)
[    9.720849][  T208]  ? kasan_save_stack (mm/kasan/common.c:57)
[    9.720988][  T208]  ? kasan_save_track (mm/kasan/common.c:78)
[    9.721124][  T208]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.721279][  T208]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    9.721418][  T208]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    9.721561][  T208]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.721702][  T208]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.721842][  T208]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[    9.721980][  T208]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    9.722118][  T208]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.722255][  T208]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.722391][  T208]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.722535][  T208]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.722683][  T208]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.722822][  T208]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.722959][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.723096][  T208]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.723232][  T208]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.723369][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.723515][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.723658][  T208]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.723795][  T208]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.723936][  T208]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.724073][  T208]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.724209][  T208]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.724350][  T208]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.724491][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.724629][  T208]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.724770][  T208]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.724909][  T208]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.725050][  T208]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.725188][  T208]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.725328][  T208]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.725471][  T208]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.725609][  T208]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.725821][  T208]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.725960][  T208]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.726098][  T208]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.726240][  T208]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.726380][  T208]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.726523][  T208]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.726766][  T208]  ? move_addr_to_kernel (net/socket.c:258)
[    9.726905][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.727043][  T208]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[    9.727181][  T208]  ___sys_sendmsg (net/socket.c:2752)
[    9.727319][  T208]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[    9.727462][  T208]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.727605][  T208]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[    9.727805][  T208]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[    9.727974][  T208]  __sys_sendmsg (net/socket.c:2784)
[    9.728113][  T208]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.728254][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.728394][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.728535][  T208]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.728680][  T208]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.728818][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.728955][  T208]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.729125][  T208] RIP: 0033:0x7f4e93f7108e
[    9.729271][  T208] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.729774][  T208] RSP: 002b:00007ffd02c5c2c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.729982][  T208] RAX: ffffffffffffffda RBX: 00007ffd02c5ca58 RCX: 00007f4e93f7108e
[    9.730188][  T208] RDX: 0000000000000000 RSI: 00007ffd02c5c370 RDI: 0000000000000005
[    9.730395][  T208] RBP: 00007ffd02c5c2d0 R08: 0000000000000000 R09: 0000000000000000
[    9.730604][  T208] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac0
[    9.730814][  T208] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd02c5ca30
| [    9.738618][  T208] ------------[ cut here ]------------
| [    9.738777][  T208] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/208
| [    9.739013][  T208] Modules linked in:
| [    9.739437][  T208] Tainted: [W]=WARN
[    9.739545][  T208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.739719][  T208] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.739895][  T208] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.740372][  T208] RSP: 0018:ffa00000009871b0 EFLAGS: 00010286
[    9.740547][  T208] RAX: 00000000ffffffa6 RBX: ff1100000df9c580 RCX: 1ff4000000130dfc
[    9.740753][  T208] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df9c63c
[    9.740953][  T208] RBP: ff11000007edc000 R08: 1fe2200001bf38c9 R09: ff1100000f5d2e80
[    9.741154][  T208] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    9.741353][  T208] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa6c03b20
[    9.741565][  T208] FS:  00007f4e93d37840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[    9.741803][  T208] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.741975][  T208] CR2: 00000000004eb188 CR3: 000000000f615003 CR4: 0000000000771ef0
[    9.742178][  T208] PKRU: 55555554
[    9.742280][  T208] Call Trace:
[    9.742381][  T208]  <TASK>
[    9.742455][  T208]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.742593][  T208]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.742699][  T208]  __dev_notify_flags (net/core/dev.c:9787)
[    9.742836][  T208]  ? netif_change_name (net/core/dev.c:1495)
[    9.742974][  T208]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.743109][  T208]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.743246][  T208]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.743384][  T208]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    9.743527][  T208]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.743665][  T208]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.743800][  T208]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.743944][  T208]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.744084][  T208]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.744222][  T208]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.744357][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.744496][  T208]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.744631][  T208]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.744768][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.744910][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.745046][  T208]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.745182][  T208]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.745317][  T208]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.745456][  T208]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.745592][  T208]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.745790][  T208]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.745924][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.746062][  T208]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.746196][  T208]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.746331][  T208]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.746473][  T208]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.746608][  T208]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.746801][  T208]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.746937][  T208]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.747076][  T208]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.747212][  T208]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.747350][  T208]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.747491][  T208]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.747628][  T208]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.747819][  T208]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.748011][  T208]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.748177][  T208]  ? move_addr_to_kernel (net/socket.c:258)
[    9.748314][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.748449][  T208]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[    9.748589][  T208]  ___sys_sendmsg (net/socket.c:2752)
[    9.748781][  T208]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[    9.748916][  T208]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.749056][  T208]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[    9.749195][  T208]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[    9.749336][  T208]  __sys_sendmsg (net/socket.c:2784)
[    9.749475][  T208]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.749614][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.749806][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.749943][  T208]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.750077][  T208]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.750211][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.750346][  T208]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.750517][  T208] RIP: 0033:0x7f4e93f7108e
[    9.750716][  T208] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.751226][  T208] RSP: 002b:00007ffd02c5c2c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.751430][  T208] RAX: ffffffffffffffda RBX: 00007ffd02c5ca58 RCX: 00007f4e93f7108e
[    9.751637][  T208] RDX: 0000000000000000 RSI: 00007ffd02c5c370 RDI: 0000000000000005
[    9.751901][  T208] RBP: 00007ffd02c5c2d0 R08: 0000000000000000 R09: 0000000000000000
[    9.752101][  T208] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac0
[    9.752302][  T208] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd02c5ca30
| [    9.807367][  T209] ------------[ cut here ]------------
| [    9.807531][  T209] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/209
| [    9.807768][  T209] Modules linked in:
| [    9.808138][  T209] Tainted: [W]=WARN
[    9.808241][  T209] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.808405][  T209] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.808583][  T209] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.809062][  T209] RSP: 0018:ffa0000000997020 EFLAGS: 00010286
[    9.809227][  T209] RAX: 00000000ffffffa6 RBX: ff110000104d4900 RCX: 1ff4000000132dca
[    9.809422][  T209] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104d49bc
[    9.809621][  T209] RBP: ff11000007edc000 R08: 1fe220000209a939 R09: ff1100000f5d5158
[    9.809821][  T209] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    9.810018][  T209] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.810216][  T209] FS:  00007f5ec12c9840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[    9.810446][  T209] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.810617][  T209] CR2: 00000000111c6988 CR3: 000000000f21a006 CR4: 0000000000771ef0
[    9.810819][  T209] PKRU: 55555554
[    9.810918][  T209] Call Trace:
[    9.811015][  T209]  <TASK>
[    9.811084][  T209]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.811222][  T209]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.811323][  T209]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.811460][  T209]  __dev_notify_flags (net/core/dev.c:9787)
[    9.811596][  T209]  ? netif_change_name (net/core/dev.c:1495)
[    9.811732][  T209]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.811865][  T209]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.811997][  T209]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.812129][  T209]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.812263][  T209]  netif_change_flags (net/core/dev.c:9820)
[    9.812395][  T209]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.812530][  T209]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.812669][  T209]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.812802][  T209]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.812967][  T209]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.813098][  T209]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.813228][  T209]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.813359][  T209]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.813497][  T209]  ? __kernel_text_address (kernel/extable.c:79)
[    9.813630][  T209]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.813768][  T209]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.813899][  T209]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.814033][  T209]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.814165][  T209]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.814296][  T209]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.814428][  T209]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.814564][  T209]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.814700][  T209]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.814832][  T209]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.814964][  T209]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.815099][  T209]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.815233][  T209]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.815368][  T209]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.815506][  T209]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.815641][  T209]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.815857][  T209]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.816057][  T209]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.816189][  T209]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.816324][  T209]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.816458][  T209]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.816590][  T209]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.816809][  T209]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.816945][  T209]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.817078][  T209]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.817211][  T209]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.817372][  T209]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.817511][  T209]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.817642][  T209]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.817834][  T209]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.817965][  T209]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.818093][  T209]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.818223][  T209]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.818356][  T209]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.818496][  T209]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.818636][  T209]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.818855][  T209]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.818989][  T209]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.819125][  T209]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.819258][  T209]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.819391][  T209]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.819530][  T209]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.819736][  T209]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.819870][  T209]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.820035][  T209]  ? move_addr_to_kernel (net/socket.c:258)
[    9.820170][  T209]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.820303][  T209]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.820437][  T209]  ___sys_sendmsg (net/socket.c:2752)
[    9.820574][  T209]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.820761][  T209]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.820905][  T209]  __sys_sendmsg (net/socket.c:2784)
[    9.821038][  T209]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.821171][  T209]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.821339][  T209]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.821478][  T209]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.821613][  T209]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.821750][  T209]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.821882][  T209]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.822015][  T209]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.822181][  T209] RIP: 0033:0x7f5ec150308e
[    9.822322][  T209] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.822803][  T209] RSP: 002b:00007ffd75141b70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.823002][  T209] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5ec150308e
[    9.823202][  T209] RDX: 0000000000000000 RSI: 00007ffd75141c20 RDI: 0000000000000005
[    9.823401][  T209] RBP: 00007ffd75141b80 R08: 0000000000000000 R09: 0000000000000000
[    9.823605][  T209] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac1
[    9.823810][  T209] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd751422e0
| [    9.864717][  T210] ------------[ cut here ]------------
| [    9.864907][  T210] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/210
| [    9.865202][  T210] Modules linked in:
| [    9.866175][  T210] Tainted: [W]=WARN
[    9.866317][  T210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.866531][  T210] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.866788][  T210] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.867296][  T210] RSP: 0018:ffa00000009a7020 EFLAGS: 00010286
[    9.867517][  T210] RAX: 00000000ffffffa6 RBX: ff1100000df9d540 RCX: 1ff4000000134dca
[    9.867786][  T210] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df9d5fc
[    9.868027][  T210] RBP: ff110000078d9000 R08: 1fe2200001bf3ac1 R09: ff1100000e7cae58
[    9.868269][  T210] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    9.868519][  T210] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.868781][  T210] FS:  00007f515fcd6840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[    9.869074][  T210] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.869285][  T210] CR2: 000000002ae4b988 CR3: 0000000004e52004 CR4: 0000000000771ef0
[    9.869533][  T210] PKRU: 55555554
[    9.869692][  T210] Call Trace:
[    9.869837][  T210]  <TASK>
[    9.869952][  T210]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.870151][  T210]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.870300][  T210]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.870484][  T210]  __dev_notify_flags (net/core/dev.c:9787)
[    9.870679][  T210]  ? netif_change_name (net/core/dev.c:1495)
[    9.870858][  T210]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.871039][  T210]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.871233][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.871418][  T210]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.871603][  T210]  netif_change_flags (net/core/dev.c:9820)
[    9.871796][  T210]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.871974][  T210]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.872155][  T210]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.872352][  T210]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.872592][  T210]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.872786][  T210]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.872965][  T210]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.873142][  T210]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.873320][  T210]  ? __kernel_text_address (kernel/extable.c:79)
[    9.873500][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.873708][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.873889][  T210]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.874068][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.874247][  T210]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.874424][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.874611][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.874810][  T210]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.875004][  T210]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.875179][  T210]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.875361][  T210]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.875549][  T210]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.875742][  T210]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.875925][  T210]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.876125][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.876300][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.876485][  T210]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.876676][  T210]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.876859][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.877046][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.877223][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.877419][  T210]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.877601][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.877791][  T210]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.877972][  T210]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.878149][  T210]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.878328][  T210]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.878531][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.878726][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.878905][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.879084][  T210]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.879260][  T210]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.879440][  T210]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.879631][  T210]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.879839][  T210]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.880022][  T210]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.880203][  T210]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.880384][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.880566][  T210]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.880762][  T210]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.880963][  T210]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.881146][  T210]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.881324][  T210]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.881510][  T210]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.881732][  T210]  ? move_addr_to_kernel (net/socket.c:258)
[    9.881913][  T210]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.882108][  T210]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.882288][  T210]  ___sys_sendmsg (net/socket.c:2752)
[    9.882475][  T210]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.882699][  T210]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.882892][  T210]  __sys_sendmsg (net/socket.c:2784)
[    9.883071][  T210]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.883248][  T210]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.883486][  T210]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.883678][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.883859][  T210]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.884037][  T210]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.884216][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.884395][  T210]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.884627][  T210] RIP: 0033:0x7f515ff1008e
[    9.884823][  T210] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.885337][  T210] RSP: 002b:00007ffc3e532cf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.885606][  T210] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f515ff1008e
[    9.885860][  T210] RDX: 0000000000000000 RSI: 00007ffc3e532da0 RDI: 0000000000000005
[    9.886101][  T210] RBP: 00007ffc3e532d00 R08: 0000000000000000 R09: 0000000000000000
[    9.886343][  T210] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac1
[    9.886593][  T210] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc3e533460
| [    9.897250][   T70] ------------[ cut here ]------------
| [    9.897416][   T70] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/70
| [    9.897674][   T70] Modules linked in:
| [    9.898114][   T70] Tainted: [W]=WARN
[    9.898216][   T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.898370][   T70] Workqueue: events_unbound linkwatch_event
[    9.898546][   T70] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.898747][   T70] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.899175][   T70] RSP: 0018:ffa00000004b79e0 EFLAGS: 00010286
[    9.899326][   T70] RAX: 00000000ffffffa6 RBX: ff1100000df9dc40 RCX: 1ff4000000096f02
[    9.899509][   T70] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df9dcfc
[    9.899693][   T70] RBP: ff11000007edc000 R08: 1fe2200001bf3ba1 R09: ff11000009038ba8
[    9.899869][   T70] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[    9.900047][   T70] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.900225][   T70] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[    9.900433][   T70] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.900585][   T70] CR2: 00000000004eb188 CR3: 000000004814d002 CR4: 0000000000771ef0
[    9.900775][   T70] PKRU: 55555554
[    9.900863][   T70] Call Trace:
[    9.900952][   T70]  <TASK>
[    9.901014][   T70]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.901135][   T70]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.901257][   T70]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.901348][   T70]  netif_state_change (net/core/dev.c:1605)
[    9.901470][   T70]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[    9.901622][   T70]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    9.901761][   T70]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    9.901879][   T70]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.902000][   T70]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    9.902116][   T70]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[    9.902235][   T70]  process_one_work (kernel/workqueue.c:3314)
[    9.902358][   T70]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.902483][   T70]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.902605][   T70]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.902730][   T70]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.902848][   T70]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    9.902966][   T70]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.903083][   T70]  kthread (kernel/kthread.c:436)
[    9.903171][   T70]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.903321][   T70]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.903441][   T70]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.903564][   T70]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.903716][   T70]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.903835][   T70]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.903953][   T70]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.950839][  T212] ------------[ cut here ]------------
| [    9.951012][  T212] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/212
| [    9.951239][  T212] Modules linked in:
| [    9.951614][  T212] Tainted: [W]=WARN
[    9.951723][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.951886][  T212] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.952056][  T212] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.952526][  T212] RSP: 0018:ffa00000009c7a80 EFLAGS: 00010286
[    9.952697][  T212] RAX: 00000000ffffffa6 RBX: ff11000005f19e00 RCX: 1ff4000000138f16
[    9.952895][  T212] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005f19ebc
[    9.953089][  T212] RBP: ff1100000eacc000 R08: 1fe2200000be33d9 R09: ff1100000e79ae80
[    9.953284][  T212] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.953483][  T212] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000eacc000
[    9.953739][  T212] FS:  00007ffb614ac840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[    9.953970][  T212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.954135][  T212] CR2: 00007ffb616adc20 CR3: 0000000004e5f005 CR4: 0000000000771ef0
[    9.954332][  T212] PKRU: 55555554
[    9.954433][  T212] Call Trace:
[    9.954535][  T212]  <TASK>
[    9.954605][  T212]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.954819][  T212]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.954951][  T212]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.955050][  T212]  register_netdevice (net/core/dev.c:11488)
[    9.955182][  T212]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.955343][  T212]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.955481][  T212]  register_netdev (net/core/dev.c:11552)
[    9.955612][  T212]  loopback_net_init (drivers/net/loopback.c:218)
[    9.955748][  T212]  ops_init (net/core/net_namespace.c:137)
[    9.955849][  T212]  setup_net (net/core/net_namespace.c:446)
[    9.955949][  T212]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.956080][  T212]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.956211][  T212]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.956344][  T212]  copy_net_ns (net/core/net_namespace.c:579)
[    9.956482][  T212]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.956615][  T212]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.956753][  T212]  ksys_unshare (kernel/fork.c:3243)
[    9.956884][  T212]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.957015][  T212]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.957145][  T212]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.957278][  T212]  ? __ia32_sys_open (fs/open.c:1374)
[    9.957410][  T212]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.957548][  T212]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.957683][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.957811][  T212]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.957941][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.958072][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.958233][  T212] RIP: 0033:0x7ffb6176ebcb
[    9.958370][  T212] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.958840][  T212] RSP: 002b:00007ffcefd42b38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.959037][  T212] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffb6176ebcb
[    9.959232][  T212] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.959427][  T212] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.959626][  T212] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcefd44d60
[    9.959826][  T212] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcefd4587f
| [    9.964152][  T212] ------------[ cut here ]------------
| [    9.964288][  T212] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/212
| [    9.964518][  T212] Modules linked in:
| [    9.964884][  T212] Tainted: [W]=WARN
[    9.964982][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.965144][  T212] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.965311][  T212] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.965778][  T212] RSP: 0018:ffa00000009c7918 EFLAGS: 00010286
[    9.965940][  T212] RAX: 00000000ffffffa6 RBX: ff1100000a132740 RCX: 1ff4000000138ee9
[    9.966134][  T212] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a1327fc
[    9.966327][  T212] RBP: ff11000001ee4000 R08: 1fe2200001426501 R09: ff1100000e79ae80
[    9.966527][  T212] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.966723][  T212] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000001ee4000
[    9.966916][  T212] FS:  00007ffb614ac840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[    9.967141][  T212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.967303][  T212] CR2: 00007ffb616adc20 CR3: 0000000004e5f005 CR4: 0000000000771ef0
[    9.967500][  T212] PKRU: 55555554
[    9.967596][  T212] Call Trace:
[    9.967696][  T212]  <TASK>
[    9.967762][  T212]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.967891][  T212]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.968020][  T212]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.968120][  T212]  register_netdevice (net/core/dev.c:11488)
[    9.968251][  T212]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.968411][  T212]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.968547][  T212]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.968682][  T212]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.968811][  T212]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.968942][  T212]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.969071][  T212]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.969202][  T212]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[    9.969332][  T212]  ops_init (net/core/net_namespace.c:137)
[    9.969431][  T212]  setup_net (net/core/net_namespace.c:446)
[    9.969533][  T212]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.970161][  T212]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.970295][  T212]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.970426][  T212]  copy_net_ns (net/core/net_namespace.c:579)
[    9.970560][  T212]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.970745][  T212]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.970875][  T212]  ksys_unshare (kernel/fork.c:3243)
[    9.971002][  T212]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.971131][  T212]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.971262][  T212]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.971392][  T212]  ? __ia32_sys_open (fs/open.c:1374)
[    9.971527][  T212]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.971710][  T212]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.971839][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.971965][  T212]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.972094][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.972222][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.972435][  T212] RIP: 0033:0x7ffb6176ebcb
[    9.972574][  T212] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.973088][  T212] RSP: 002b:00007ffcefd42b38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.973282][  T212] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffb6176ebcb
[    9.973481][  T212] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.973727][  T212] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.973920][  T212] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcefd44d60
[    9.974111][  T212] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcefd4587f
| [    9.983931][  T212] ------------[ cut here ]------------
| [    9.984135][  T212] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/212
| [    9.984412][  T212] Modules linked in:
| [    9.984906][  T212] Tainted: [W]=WARN
[    9.985051][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.985260][  T212] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.985486][  T212] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.986013][  T212] RSP: 0018:ffa00000009c78f8 EFLAGS: 00010286
[    9.986224][  T212] RAX: 00000000ffffffa6 RBX: ff1100000dc1ae40 RCX: 1ff4000000138ee5
[    9.986473][  T212] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dc1aefc
[    9.986737][  T212] RBP: ff1100000f134000 R08: 1fe2200001b835e1 R09: ff1100000e79ae80
[    9.986980][  T212] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.987221][  T212] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f134000
[    9.987566][  T212] FS:  00007ffb614ac840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[    9.987906][  T212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.988121][  T212] CR2: 00007f515fda3574 CR3: 0000000004e5f006 CR4: 0000000000771ef0
[    9.988364][  T212] PKRU: 55555554
[    9.988519][  T212] Call Trace:
[    9.988698][  T212]  <TASK>
[    9.988852][  T212]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.989033][  T212]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.989259][  T212]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.989472][  T212]  register_netdevice (net/core/dev.c:11488)
[    9.989739][  T212]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.990036][  T212]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.990280][  T212]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.990477][  T212]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.990738][  T212]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.990988][  T212]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.991242][  T212]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.991503][  T212]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[    9.991723][  T212]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.991960][  T212]  vti_init_net (net/ipv4/ip_vti.c:517)
[    9.992207][  T212]  ops_init (net/core/net_namespace.c:137)
[    9.992413][  T212]  setup_net (net/core/net_namespace.c:446)
[    9.992629][  T212]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.992891][  T212]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.993080][  T212]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.993266][  T212]  copy_net_ns (net/core/net_namespace.c:579)
[    9.993517][  T212]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.993738][  T212]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.993917][  T212]  ksys_unshare (kernel/fork.c:3243)
[    9.994095][  T212]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.994275][  T212]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.994461][  T212]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.994643][  T212]  ? __ia32_sys_open (fs/open.c:1374)
[    9.994908][  T212]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.995149][  T212]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.995396][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.995672][  T212]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.995883][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.996097][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.996386][  T212] RIP: 0033:0x7ffb6176ebcb
[    9.996673][  T212] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.997362][  T212] RSP: 002b:00007ffcefd42b38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.997713][  T212] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffb6176ebcb
[    9.997956][  T212] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.998196][  T212] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.998442][  T212] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcefd44d60
[    9.998806][  T212] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcefd4587f
| [   10.003640][  T212] ------------[ cut here ]------------
| [   10.003822][  T212] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/212
| [   10.004097][  T212] Modules linked in:
| [   10.004558][  T212] Tainted: [W]=WARN
[   10.004716][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.004925][  T212] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.005139][  T212] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.005664][  T212] RSP: 0018:ffa00000009c7a78 EFLAGS: 00010286
[   10.005873][  T212] RAX: 00000000ffffffa6 RBX: ff1100000dc1a040 RCX: 1ff4000000138f15
[   10.006116][  T212] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dc1a0fc
[   10.006355][  T212] RBP: ff1100000f621000 R08: 1fe2200001b83421 R09: ff1100000e79ae80
[   10.006605][  T212] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.006856][  T212] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f621000
[   10.007102][  T212] FS:  00007ffb614ac840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   10.007376][  T212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.007595][  T212] CR2: 00007f515fda3574 CR3: 0000000004e5f006 CR4: 0000000000771ef0
[   10.007849][  T212] PKRU: 55555554
[   10.007994][  T212] Call Trace:
[   10.008138][  T212]  <TASK>
[   10.008255][  T212]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.008433][  T212]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.008621][  T212]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.008780][  T212]  register_netdevice (net/core/dev.c:11488)
[   10.008957][  T212]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.009163][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.009344][  T212]  register_netdev (net/core/dev.c:11552)
[   10.009534][  T212]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   10.009725][  T212]  ops_init (net/core/net_namespace.c:137)
[   10.009872][  T212]  setup_net (net/core/net_namespace.c:446)
[   10.010018][  T212]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.010193][  T212]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.010370][  T212]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.010556][  T212]  copy_net_ns (net/core/net_namespace.c:579)
[   10.010751][  T212]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.010930][  T212]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.011108][  T212]  ksys_unshare (kernel/fork.c:3243)
[   10.011284][  T212]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.011467][  T212]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.011645][  T212]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.011836][  T212]  ? __ia32_sys_open (fs/open.c:1374)
[   10.012016][  T212]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.012192][  T212]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.012367][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.012553][  T212]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.012743][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.012920][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.013126][  T212] RIP: 0033:0x7ffb6176ebcb
[   10.013307][  T212] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.013834][  T212] RSP: 002b:00007ffcefd42b38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   10.014073][  T212] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffb6176ebcb
[   10.014327][  T212] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.014578][  T212] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.014829][  T212] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcefd44d60
[   10.015068][  T212] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcefd4587f
| [   10.019594][  T212] ------------[ cut here ]------------
| [   10.019793][  T212] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/212
| [   10.020066][  T212] Modules linked in:
| [   10.020532][  T212] Tainted: [W]=WARN
[   10.020690][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.020898][  T212] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.021113][  T212] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.021629][  T212] RSP: 0018:ffa00000009c7a68 EFLAGS: 00010286
[   10.021855][  T212] RAX: 00000000ffffffa6 RBX: ff110000057051c0 RCX: 1ff4000000138f13
[   10.022095][  T212] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000570527c
[   10.022335][  T212] RBP: ff1100000f2d4000 R08: 1fe2200000ae0a51 R09: ff1100000e79ae80
[   10.022586][  T212] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.022841][  T212] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f2d4000
[   10.023084][  T212] FS:  00007ffb614ac840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   10.023357][  T212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.023580][  T212] CR2: 00007f515fda3574 CR3: 0000000004e5f006 CR4: 0000000000771ef0
[   10.023834][  T212] PKRU: 55555554
[   10.023978][  T212] Call Trace:
[   10.024122][  T212]  <TASK>
[   10.024236][  T212]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.024414][  T212]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.024599][  T212]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.024760][  T212]  register_netdevice (net/core/dev.c:11488)
[   10.024945][  T212]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.025157][  T212]  register_netdev (net/core/dev.c:11552)
[   10.025335][  T212]  sit_init_net (net/ipv6/sit.c:1860)
[   10.025541][  T212]  ops_init (net/core/net_namespace.c:137)
[   10.025709][  T212]  setup_net (net/core/net_namespace.c:446)
[   10.025858][  T212]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.026088][  T212]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.026282][  T212]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.026471][  T212]  copy_net_ns (net/core/net_namespace.c:579)
[   10.026665][  T212]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.026848][  T212]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.027083][  T212]  ksys_unshare (kernel/fork.c:3243)
[   10.027328][  T212]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.027522][  T212]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.027720][  T212]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.027901][  T212]  ? __ia32_sys_open (fs/open.c:1374)
[   10.028126][  T212]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.028319][  T212]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.028574][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.028840][  T212]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.029091][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.029292][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.029585][  T212] RIP: 0033:0x7ffb6176ebcb
[   10.029838][  T212] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.030357][  T212] RSP: 002b:00007ffcefd42b38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   10.030614][  T212] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffb6176ebcb
[   10.030934][  T212] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.031175][  T212] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.031417][  T212] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcefd44d60
[   10.031678][  T212] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcefd4587f
| [   10.046105][  T212] ------------[ cut here ]------------
| [   10.046284][  T212] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/212
| [   10.046568][  T212] Modules linked in:
| [   10.047086][  T212] Tainted: [W]=WARN
[   10.047231][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.047439][  T212] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.047679][  T212] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.048186][  T212] RSP: 0018:ffa00000009c7a78 EFLAGS: 00010286
[   10.048398][  T212] RAX: 00000000ffffffa6 RBX: ff1100000a132200 RCX: 1ff4000000138f15
[   10.048648][  T212] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a1322bc
[   10.048906][  T212] RBP: ff1100000e959000 R08: 1fe2200001426459 R09: ff1100000e79ae80
[   10.049149][  T212] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.049390][  T212] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e959000
[   10.049640][  T212] FS:  00007ffb614ac840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   10.049932][  T212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.050143][  T212] CR2: 00007f515fda3574 CR3: 0000000004e5f006 CR4: 0000000000771ef0
[   10.050385][  T212] PKRU: 55555554
[   10.050534][  T212] Call Trace:
[   10.050690][  T212]  <TASK>
[   10.050805][  T212]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.050985][  T212]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.051167][  T212]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.051315][  T212]  register_netdevice (net/core/dev.c:11488)
[   10.051502][  T212]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.051725][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.051906][  T212]  register_netdev (net/core/dev.c:11552)
[   10.052085][  T212]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   10.052264][  T212]  ops_init (net/core/net_namespace.c:137)
[   10.052416][  T212]  setup_net (net/core/net_namespace.c:446)
[   10.052583][  T212]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.052769][  T212]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.052947][  T212]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.053126][  T212]  copy_net_ns (net/core/net_namespace.c:579)
[   10.053304][  T212]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.053492][  T212]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.053688][  T212]  ksys_unshare (kernel/fork.c:3243)
[   10.053866][  T212]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.054043][  T212]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.054221][  T212]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.054398][  T212]  ? __ia32_sys_open (fs/open.c:1374)
[   10.054588][  T212]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.054778][  T212]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.054958][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.055136][  T212]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.055313][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.055499][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.055721][  T212] RIP: 0033:0x7ffb6176ebcb
[   10.055904][  T212] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.056414][  T212] RSP: 002b:00007ffcefd42b38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   10.056676][  T212] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffb6176ebcb
[   10.056917][  T212] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.057159][  T212] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.057403][  T212] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcefd44d60
[   10.057664][  T212] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcefd4587f
| [   10.088840][  T213] ------------[ cut here ]------------
| [   10.088981][  T213] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/213
| [   10.089209][  T213] Modules linked in:
| [   10.089582][  T213] Tainted: [W]=WARN
[   10.089687][  T213] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.089848][  T213] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.090014][  T213] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.090478][  T213] RSP: 0018:ffa00000009d7020 EFLAGS: 00010286
[   10.090645][  T213] RAX: 00000000ffffffa6 RBX: ff11000009a7c740 RCX: 1ff400000013adca
[   10.090841][  T213] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a7c7fc
[   10.091031][  T213] RBP: ff1100000eacc000 R08: 1fe220000134f901 R09: ff1100000e6d2e58
[   10.091223][  T213] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   10.091413][  T213] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   10.091611][  T213] FS:  00007f2c58eb5840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   10.091841][  T213] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.092002][  T213] CR2: 000000001b613988 CR3: 0000000010475001 CR4: 0000000000771ef0
[   10.092218][  T213] PKRU: 55555554
[   10.092314][  T213] Call Trace:
[   10.092410][  T213]  <TASK>
[   10.092485][  T213]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.092616][  T213]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.092718][  T213]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   10.092849][  T213]  __dev_notify_flags (net/core/dev.c:9787)
[   10.092980][  T213]  ? netif_change_name (net/core/dev.c:1495)
[   10.093108][  T213]  ? __dev_change_flags (net/core/dev.c:9752)
[   10.093238][  T213]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   10.093367][  T213]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.093499][  T213]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   10.093630][  T213]  netif_change_flags (net/core/dev.c:9820)
[   10.093762][  T213]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   10.093893][  T213]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   10.094025][  T213]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   10.094157][  T213]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   10.094318][  T213]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.094448][  T213]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.094583][  T213]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.094715][  T213]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.094845][  T213]  ? __kernel_text_address (kernel/extable.c:79)
[   10.094975][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.095104][  T213]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.095232][  T213]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   10.095363][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.095497][  T213]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   10.095624][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.095756][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.095884][  T213]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   10.096014][  T213]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   10.096142][  T213]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   10.096272][  T213]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   10.096401][  T213]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   10.096540][  T213]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   10.096677][  T213]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.096808][  T213]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.096968][  T213]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.097098][  T213]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   10.097226][  T213]  ? lockdep_hardirqs_off (kernel/locking/lockdep.c:4511)
[   10.097356][  T213]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.097490][  T213]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.097618][  T213]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.097751][  T213]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.097882][  T213]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.098010][  T213]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.098139][  T213]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.098268][  T213]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.098396][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.098532][  T213]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.098664][  T213]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.098793][  T213]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.098923][  T213]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.099052][  T213]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.099184][  T213]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   10.099313][  T213]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   10.099443][  T213]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.099580][  T213]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.099714][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.099845][  T213]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.099975][  T213]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.100105][  T213]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.100235][  T213]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.100364][  T213]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.100498][  T213]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.100663][  T213]  ? move_addr_to_kernel (net/socket.c:258)
[   10.100793][  T213]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.100922][  T213]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.101051][  T213]  ___sys_sendmsg (net/socket.c:2752)
[   10.101178][  T213]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   10.101338][  T213]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.101484][  T213]  __sys_sendmsg (net/socket.c:2784)
[   10.101614][  T213]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.101747][  T213]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   10.101912][  T213]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.102041][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.102171][  T213]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.102300][  T213]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.102428][  T213]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.102560][  T213]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.102724][  T213] RIP: 0033:0x7f2c590ef08e
[   10.102857][  T213] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.103316][  T213] RSP: 002b:00007ffed5544b50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.103514][  T213] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f2c590ef08e
[   10.103712][  T213] RDX: 0000000000000000 RSI: 00007ffed5544c00 RDI: 0000000000000005
[   10.103904][  T213] RBP: 00007ffed5544b60 R08: 0000000000000000 R09: 0000000000000000
[   10.104095][  T213] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac1
[   10.104285][  T213] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffed55452d0
| [   10.307636][  T216] ------------[ cut here ]------------
| [   10.307861][  T216] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/216
| [   10.308158][  T216] Modules linked in: ipvtap ipvlan
| [   10.308703][  T216] Tainted: [W]=WARN
[   10.308856][  T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.309079][  T216] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.309308][  T216] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.309868][  T216] RSP: 0018:ffa0000000a070b0 EFLAGS: 00010286
[   10.310090][  T216] RAX: 00000000ffffffa6 RBX: ff1100000d4e8c80 RCX: 1ff4000000140ddc
[   10.310340][  T216] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d4e8d3c
[   10.310605][  T216] RBP: ff11000007edc000 R08: 1fe2200001a9d1a9 R09: ff1100000f3a2e80
[   10.310875][  T216] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   10.311131][  T216] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   10.311385][  T216] FS:  00007f8badbff840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   10.311692][  T216] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.311915][  T216] CR2: 000055db5e135d70 CR3: 0000000004ed0006 CR4: 0000000000771ef0
[   10.312169][  T216] PKRU: 55555554
[   10.312319][  T216] Call Trace:
[   10.312477][  T216]  <TASK>
[   10.312597][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.312799][  T216]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   10.312989][  T216]  notifier_call_chain (kernel/notifier.c:85)
[   10.313178][  T216]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   10.313365][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.313560][  T216]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   10.313759][  T216]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   10.313918][  T216]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   10.314139][  T216]  ? ida_destroy (lib/idr.c:623)
[   10.314328][  T216]  netdev_upper_dev_link (net/core/dev.c:8972)
[   10.314524][  T216]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   10.314726][  T216] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   10.314919][  T216]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   10.315105][  T216]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   10.315296][  T216] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   10.315491][  T216]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   10.315695][  T216]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   10.315880][  T216]  ? __dev_get_by_name (net/core/dev.c:883)
[   10.316067][  T216]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   10.316265][  T216]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   10.316471][  T216]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.316672][  T216]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.316858][  T216]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.317046][  T216]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.317231][  T216]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   10.317419][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.317613][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.317849][  T216]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.318036][  T216]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.318227][  T216]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.318413][  T216]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.318606][  T216]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.318806][  T216]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.318991][  T216]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.319183][  T216]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.319368][  T216]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.319564][  T216]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.319769][  T216]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   10.319958][  T216]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   10.320146][  T216]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.320334][  T216]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.320528][  T216]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.320728][  T216]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.320915][  T216]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.321104][  T216]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.321293][  T216]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.321490][  T216]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.321689][  T216]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.321906][  T216]  ? move_addr_to_kernel (net/socket.c:258)
[   10.322098][  T216]  ___sys_sendmsg (net/socket.c:2752)
[   10.322284][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.322479][  T216]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.322689][  T216]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   10.322877][  T216]  __sys_sendmsg (net/socket.c:2784)
[   10.323065][  T216]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.323255][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.323442][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.323638][  T216]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.323838][  T216]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.324027][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.324215][  T216]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.324435][  T216] RIP: 0033:0x7f8bade3908e
[   10.324637][  T216] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.325191][  T216] RSP: 002b:00007ffe73527690 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.325448][  T216] RAX: ffffffffffffffda RBX: 00007ffe73527e48 RCX: 00007f8bade3908e
[   10.325724][  T216] RDX: 0000000000000000 RSI: 00007ffe73527740 RDI: 0000000000000005
[   10.325979][  T216] RBP: 00007ffe735276a0 R08: 0000000000000000 R09: 0000000000000000
[   10.326235][  T216] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac1
[   10.326501][  T216] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe73527e00
| [   10.328563][  T216] ------------[ cut here ]------------
| [   10.328753][  T216] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/216
| [   10.329030][  T216] Modules linked in: ipvtap ipvlan
| [   10.329536][  T216] Tainted: [W]=WARN
[   10.329697][  T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.329914][  T216] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.330136][  T216] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.330677][  T216] RSP: 0018:ffa0000000a071b0 EFLAGS: 00010286
[   10.330893][  T216] RAX: 00000000ffffffa6 RBX: ff1100000d4e98c0 RCX: 1ff4000000140dfc
[   10.331139][  T216] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d4e997c
[   10.331385][  T216] RBP: ff1100000fef2000 R08: 1fe2200001a9d331 R09: ff1100000f3a2e80
[   10.331639][  T216] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.331902][  T216] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   10.332150][  T216] FS:  00007f8badbff840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   10.332429][  T216] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.332665][  T216] CR2: 000055db5e135d70 CR3: 0000000004ed0006 CR4: 0000000000771ef0
[   10.332913][  T216] PKRU: 55555554
[   10.333063][  T216] Call Trace:
[   10.333210][  T216]  <TASK>
[   10.333326][  T216]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.333519][  T216]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.333683][  T216]  ? ida_destroy (lib/idr.c:623)
[   10.333867][  T216]  __dev_notify_flags (net/core/dev.c:9787)
[   10.334052][  T216]  ? netif_change_name (net/core/dev.c:1495)
[   10.334233][  T216]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   10.334414][  T216]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   10.334638][  T216]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   10.334866][  T216]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   10.335050][  T216]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   10.335235][  T216]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   10.335420][  T216]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   10.335607][  T216]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   10.335809][  T216]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   10.335994][  T216]  ? __dev_get_by_name (net/core/dev.c:883)
[   10.336177][  T216]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   10.336365][  T216]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   10.336606][  T216]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.336811][  T216]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.336993][  T216]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.337176][  T216]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.337360][  T216]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   10.337557][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.337759][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.338069][  T216]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.338251][  T216]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.338433][  T216]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.338625][  T216]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.338819][  T216]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.339011][  T216]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.339194][  T216]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.339379][  T216]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.339569][  T216]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.339767][  T216]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.339956][  T216]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   10.340142][  T216]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   10.340330][  T216]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.340523][  T216]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.340720][  T216]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.340906][  T216]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.341095][  T216]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.341279][  T216]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.341469][  T216]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.341667][  T216]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.341875][  T216]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.342092][  T216]  ? move_addr_to_kernel (net/socket.c:258)
[   10.342280][  T216]  ___sys_sendmsg (net/socket.c:2752)
[   10.342467][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.342664][  T216]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.342854][  T216]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   10.343041][  T216]  __sys_sendmsg (net/socket.c:2784)
[   10.343224][  T216]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.343410][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.343600][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.343811][  T216]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.343995][  T216]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.344177][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.344359][  T216]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.344583][  T216] RIP: 0033:0x7f8bade3908e
[   10.344788][  T216] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.345310][  T216] RSP: 002b:00007ffe73527690 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.345567][  T216] RAX: ffffffffffffffda RBX: 00007ffe73527e48 RCX: 00007f8bade3908e
[   10.345832][  T216] RDX: 0000000000000000 RSI: 00007ffe73527740 RDI: 0000000000000005
[   10.346080][  T216] RBP: 00007ffe735276a0 R08: 0000000000000000 R09: 0000000000000000
[   10.346327][  T216] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac1
[   10.346582][  T216] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe73527e00
| [   10.412613][  T220] ------------[ cut here ]------------
| [   10.412825][  T220] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/220
| [   10.413113][  T220] Modules linked in: ipvtap ipvlan
| [   10.413621][  T220] Tainted: [W]=WARN
[   10.413792][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.414013][  T220] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.414238][  T220] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.414771][  T220] RSP: 0018:ffa0000000557a80 EFLAGS: 00010286
[   10.414987][  T220] RAX: 00000000ffffffa6 RBX: ff11000009a7da80 RCX: 1ff40000000aaf16
[   10.415229][  T220] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a7db3c
[   10.415479][  T220] RBP: ff1100000f674000 R08: 1fe220000134fb69 R09: ff1100000e7d5180
[   10.415736][  T220] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.415976][  T220] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f674000
[   10.416221][  T220] FS:  00007f068c419840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   10.416505][  T220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.416731][  T220] CR2: 00007f068c61ac20 CR3: 000000000f2ef001 CR4: 0000000000771ef0
[   10.416977][  T220] PKRU: 55555554
[   10.417126][  T220] Call Trace:
[   10.417276][  T220]  <TASK>
[   10.417392][  T220]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.417581][  T220]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.417826][  T220]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.417973][  T220]  register_netdevice (net/core/dev.c:11488)
[   10.418155][  T220]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.418368][  T220]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   10.418558][  T220]  register_netdev (net/core/dev.c:11552)
[   10.418754][  T220]  loopback_net_init (drivers/net/loopback.c:218)
[   10.418933][  T220]  ops_init (net/core/net_namespace.c:137)
[   10.419081][  T220]  setup_net (net/core/net_namespace.c:446)
[   10.419227][  T220]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.419408][  T220]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.419602][  T220]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.419800][  T220]  copy_net_ns (net/core/net_namespace.c:579)
[   10.419987][  T220]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.420172][  T220]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.420353][  T220]  ksys_unshare (kernel/fork.c:3243)
[   10.420545][  T220]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.420736][  T220]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.420913][  T220]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.421091][  T220]  ? __ia32_sys_open (fs/open.c:1374)
[   10.421274][  T220]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.421450][  T220]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.421635][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.421824][  T220]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.422000][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.422178][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.422384][  T220] RIP: 0033:0x7f068c6dbbcb
[   10.422576][  T220] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.423094][  T220] RSP: 002b:00007ffc8363c788 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   10.423335][  T220] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f068c6dbbcb
[   10.423581][  T220] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.423833][  T220] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.424071][  T220] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc8363e9b0
[   10.424309][  T220] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc8363f87f
| [   10.428965][  T220] ------------[ cut here ]------------
| [   10.429140][  T220] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/220
| [   10.429411][  T220] Modules linked in: ipvtap ipvlan
| [   10.429922][  T220] Tainted: [W]=WARN
[   10.430066][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.430273][  T220] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.430497][  T220] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.431011][  T220] RSP: 0018:ffa0000000557918 EFLAGS: 00010286
[   10.431220][  T220] RAX: 00000000ffffffa6 RBX: ff110000062183c0 RCX: 1ff40000000aaee9
[   10.431465][  T220] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000621847c
[   10.431721][  T220] RBP: ff1100000e979000 R08: 1fe2200000c43091 R09: ff1100000e7d5180
[   10.431965][  T220] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.432204][  T220] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e979000
[   10.432447][  T220] FS:  00007f068c419840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   10.432738][  T220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.432953][  T220] CR2: 00007f068c61ac20 CR3: 000000000f2ef001 CR4: 0000000000771ef0
[   10.433193][  T220] PKRU: 55555554
[   10.433335][  T220] Call Trace:
[   10.433489][  T220]  <TASK>
[   10.433605][  T220]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.433803][  T220]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.433981][  T220]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.434131][  T220]  register_netdevice (net/core/dev.c:11488)
[   10.434309][  T220]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.434528][  T220]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   10.434726][  T220]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   10.434908][  T220]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   10.435085][  T220]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   10.435263][  T220]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   10.435445][  T220]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   10.435637][  T220]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   10.435830][  T220]  ops_init (net/core/net_namespace.c:137)
[   10.435978][  T220]  setup_net (net/core/net_namespace.c:446)
[   10.436124][  T220]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.436299][  T220]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.436483][  T220]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.436679][  T220]  copy_net_ns (net/core/net_namespace.c:579)
[   10.436859][  T220]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.437038][  T220]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.437215][  T220]  ksys_unshare (kernel/fork.c:3243)
[   10.437391][  T220]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.437578][  T220]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.437768][  T220]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.437949][  T220]  ? __ia32_sys_open (fs/open.c:1374)
[   10.438129][  T220]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.438305][  T220]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.438489][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.438679][  T220]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.438856][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.439033][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.439239][  T220] RIP: 0033:0x7f068c6dbbcb
[   10.439423][  T220] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.439947][  T220] RSP: 002b:00007ffc8363c788 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   10.440189][  T220] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f068c6dbbcb
[   10.440430][  T220] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.440690][  T220] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.440928][  T220] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc8363e9b0
[   10.441166][  T220] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc8363f87f
| [   10.445396][  T220] ------------[ cut here ]------------
| [   10.445582][  T220] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/220
| [   10.445866][  T220] Modules linked in: ipvtap ipvlan
| [   10.446362][  T220] Tainted: [W]=WARN
[   10.446517][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.446764][  T220] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.446983][  T220] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.447502][  T220] RSP: 0018:ffa00000005578f8 EFLAGS: 00010286
[   10.447727][  T220] RAX: 00000000ffffffa6 RBX: ff1100000cb0d380 RCX: 1ff40000000aaee5
[   10.447968][  T220] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cb0d43c
[   10.448212][  T220] RBP: ff1100000e5a1000 R08: 1fe2200001961a89 R09: ff1100000e7d5180
[   10.448460][  T220] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.448721][  T220] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e5a1000
[   10.448973][  T220] FS:  00007f068c419840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   10.449257][  T220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.449485][  T220] CR2: 00007f068c61ac20 CR3: 000000000f2ef001 CR4: 0000000000771ef0
[   10.449750][  T220] PKRU: 55555554
[   10.449900][  T220] Call Trace:
[   10.450049][  T220]  <TASK>
[   10.450166][  T220]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.450351][  T220]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.450544][  T220]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.450711][  T220]  register_netdevice (net/core/dev.c:11488)
[   10.450898][  T220]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.451114][  T220]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   10.451299][  T220]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   10.451492][  T220]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   10.451689][  T220]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   10.451874][  T220]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   10.452063][  T220]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   10.452247][  T220]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   10.452432][  T220]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   10.452629][  T220]  vti_init_net (net/ipv4/ip_vti.c:517)
[   10.452826][  T220]  ops_init (net/core/net_namespace.c:137)
[   10.452978][  T220]  setup_net (net/core/net_namespace.c:446)
[   10.453127][  T220]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.453306][  T220]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.453497][  T220]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.453705][  T220]  copy_net_ns (net/core/net_namespace.c:579)
[   10.453884][  T220]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.454064][  T220]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.454242][  T220]  ksys_unshare (kernel/fork.c:3243)
[   10.454419][  T220]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.454606][  T220]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.454799][  T220]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.454978][  T220]  ? __ia32_sys_open (fs/open.c:1374)
[   10.455158][  T220]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.455335][  T220]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.455522][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.455714][  T220]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.455893][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.456074][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.456282][  T220] RIP: 0033:0x7f068c6dbbcb
[   10.456473][  T220] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.456991][  T220] RSP: 002b:00007ffc8363c788 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   10.457237][  T220] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f068c6dbbcb
[   10.457483][  T220] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.457735][  T220] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.457976][  T220] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc8363e9b0
[   10.458220][  T220] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc8363f87f
| [   10.462773][  T220] ------------[ cut here ]------------
| [   10.462963][  T220] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/220
| [   10.463247][  T220] Modules linked in: ipvtap ipvlan
| [   10.463764][  T220] Tainted: [W]=WARN
[   10.463910][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.464125][  T220] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.464341][  T220] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.464867][  T220] RSP: 0018:ffa0000000557a78 EFLAGS: 00010286
[   10.465079][  T220] RAX: 00000000ffffffa6 RBX: ff1100000cb0c580 RCX: 1ff40000000aaf15
[   10.465324][  T220] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cb0c63c
[   10.465573][  T220] RBP: ff1100000e7a1000 R08: 1fe22000019618c9 R09: ff1100000e7d5180
[   10.465828][  T220] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.466069][  T220] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e7a1000
[   10.466315][  T220] FS:  00007f068c419840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   10.466597][  T220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.466820][  T220] CR2: 00007f068c61ac20 CR3: 000000000f2ef001 CR4: 0000000000771ef0
[   10.467063][  T220] PKRU: 55555554
[   10.467208][  T220] Call Trace:
[   10.467352][  T220]  <TASK>
[   10.467476][  T220]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.467669][  T220]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.467849][  T220]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.467999][  T220]  register_netdevice (net/core/dev.c:11488)
[   10.468180][  T220]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.468391][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.468585][  T220]  register_netdev (net/core/dev.c:11552)
[   10.468781][  T220]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   10.468964][  T220]  ops_init (net/core/net_namespace.c:137)
[   10.469114][  T220]  setup_net (net/core/net_namespace.c:446)
[   10.469264][  T220]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.469444][  T220]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.469633][  T220]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.469830][  T220]  copy_net_ns (net/core/net_namespace.c:579)
[   10.470013][  T220]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.470195][  T220]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.470373][  T220]  ksys_unshare (kernel/fork.c:3243)
[   10.470560][  T220]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.470752][  T220]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.470929][  T220]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.471107][  T220]  ? __ia32_sys_open (fs/open.c:1374)
[   10.471289][  T220]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.471475][  T220]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.471665][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.471842][  T220]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.472018][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.472197][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.472404][  T220] RIP: 0033:0x7f068c6dbbcb
[   10.472596][  T220] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.473112][  T220] RSP: 002b:00007ffc8363c788 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   10.473354][  T220] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f068c6dbbcb
[   10.473604][  T220] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.473859][  T220] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.474100][  T220] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc8363e9b0
[   10.474342][  T220] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc8363f87f
| [   10.479931][  T220] ------------[ cut here ]------------
| [   10.480108][  T220] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/220
| [   10.480381][  T220] Modules linked in: ipvtap ipvlan
| [   10.480887][  T220] Tainted: [W]=WARN
[   10.481034][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.481251][  T220] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.481485][  T220] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.482010][  T220] RSP: 0018:ffa0000000557a68 EFLAGS: 00010286
[   10.482221][  T220] RAX: 00000000ffffffa6 RBX: ff11000006219540 RCX: 1ff40000000aaf13
[   10.482467][  T220] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000062195fc
[   10.482785][  T220] RBP: ff1100000e90c000 R08: 1fe2200000c432c1 R09: ff1100000e7d5180
[   10.483089][  T220] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.483389][  T220] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e90c000
[   10.483706][  T220] FS:  00007f068c419840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   10.484034][  T220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.484298][  T220] CR2: 00007f068c61ac20 CR3: 000000000f2ef001 CR4: 0000000000771ef0
[   10.484602][  T220] PKRU: 55555554
[   10.484810][  T220] Call Trace:
[   10.485006][  T220]  <TASK>
[   10.485173][  T220]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.485403][  T220]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.485641][  T220]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.485857][  T220]  register_netdevice (net/core/dev.c:11488)
[   10.486092][  T220]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.486356][  T220]  register_netdev (net/core/dev.c:11552)
[   10.486597][  T220]  sit_init_net (net/ipv6/sit.c:1860)
[   10.486846][  T220]  ops_init (net/core/net_namespace.c:137)
[   10.487047][  T220]  setup_net (net/core/net_namespace.c:446)
[   10.487245][  T220]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.487479][  T220]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.487724][  T220]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.487956][  T220]  copy_net_ns (net/core/net_namespace.c:579)
[   10.488184][  T220]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.488416][  T220]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.488666][  T220]  ksys_unshare (kernel/fork.c:3243)
[   10.488894][  T220]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.489127][  T220]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.489356][  T220]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.489592][  T220]  ? __ia32_sys_open (fs/open.c:1374)
[   10.489838][  T220]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.490067][  T220]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.490296][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.490532][  T220]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.490776][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.491011][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.491272][  T220] RIP: 0033:0x7f068c6dbbcb
[   10.491516][  T220] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.492091][  T220] RSP: 002b:00007ffc8363c788 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   10.492390][  T220] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f068c6dbbcb
[   10.492704][  T220] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.492998][  T220] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.493290][  T220] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc8363e9b0
[   10.493587][  T220] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc8363f87f
| [   10.504593][  T220] ------------[ cut here ]------------
| [   10.504780][  T220] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/220
| [   10.505010][  T220] Modules linked in: ipvtap ipvlan
| [   10.505409][  T220] Tainted: [W]=WARN
[   10.505513][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.505682][  T220] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.505858][  T220] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.506313][  T220] RSP: 0018:ffa0000000557a78 EFLAGS: 00010286
[   10.506483][  T220] RAX: 00000000ffffffa6 RBX: ff1100000ba25a80 RCX: 1ff40000000aaf15
[   10.506683][  T220] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba25b3c
[   10.506875][  T220] RBP: ff1100000a3fc000 R08: 1fe2200001744b69 R09: ff1100000e7d5180
[   10.507066][  T220] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   10.507258][  T220] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a3fc000
[   10.507450][  T220] FS:  00007f068c419840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   10.507691][  T220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.507852][  T220] CR2: 00007f20dd041050 CR3: 000000000f2ef005 CR4: 0000000000771ef0
[   10.508048][  T220] PKRU: 55555554
[   10.508144][  T220] Call Trace:
[   10.508240][  T220]  <TASK>
[   10.508306][  T220]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.508438][  T220]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.508572][  T220]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.508676][  T220]  register_netdevice (net/core/dev.c:11488)
[   10.508808][  T220]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.508968][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.509100][  T220]  register_netdev (net/core/dev.c:11552)
[   10.509229][  T220]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   10.509362][  T220]  ops_init (net/core/net_namespace.c:137)
[   10.509466][  T220]  setup_net (net/core/net_namespace.c:446)
[   10.509572][  T220]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.509706][  T220]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.509839][  T220]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.509970][  T220]  copy_net_ns (net/core/net_namespace.c:579)
[   10.510100][  T220]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.510233][  T220]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.510368][  T220]  ksys_unshare (kernel/fork.c:3243)
[   10.510501][  T220]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.510630][  T220]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.510763][  T220]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.510893][  T220]  ? __ia32_sys_open (fs/open.c:1374)
[   10.511024][  T220]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.511154][  T220]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.511283][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.511411][  T220]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.511542][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.511677][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.511839][  T220] RIP: 0033:0x7f068c6dbbcb
[   10.511973][  T220] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.512430][  T220] RSP: 002b:00007ffc8363c788 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   10.512629][  T220] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f068c6dbbcb
[   10.512824][  T220] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.513018][  T220] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.513210][  T220] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc8363e9b0
[   10.513403][  T220] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc8363f87f
| [   10.539795][  T224] ------------[ cut here ]------------
| [   10.540005][  T224] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/224
| [   10.540291][  T224] Modules linked in: ipvtap ipvlan
| [   10.540885][  T224] Tainted: [W]=WARN
[   10.541027][  T224] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.541237][  T224] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.541450][  T224] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.541976][  T224] RSP: 0018:ffa0000000517020 EFLAGS: 00010286
[   10.542184][  T224] RAX: 00000000ffffffa6 RBX: ff1100000b431700 RCX: 1ff40000000a2dca
[   10.542424][  T224] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b4317bc
[   10.542681][  T224] RBP: ff1100000f674000 R08: 1fe22000016862f9 R09: ff1100000f9e8b58
[   10.542919][  T224] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   10.543157][  T224] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   10.543401][  T224] FS:  00007fee51c34840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   10.543700][  T224] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.543908][  T224] CR2: 0000000031854988 CR3: 00000000060eb003 CR4: 0000000000771ef0
[   10.544149][  T224] PKRU: 55555554
[   10.544293][  T224] Call Trace:
[   10.544437][  T224]  <TASK>
[   10.544563][  T224]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.544755][  T224]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.544902][  T224]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   10.545076][  T224]  __dev_notify_flags (net/core/dev.c:9787)
[   10.545254][  T224]  ? netif_change_name (net/core/dev.c:1495)
[   10.545431][  T224]  ? __dev_change_flags (net/core/dev.c:9752)
[   10.545619][  T224]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   10.545808][  T224]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.545985][  T224]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   10.546164][  T224]  netif_change_flags (net/core/dev.c:9820)
[   10.546341][  T224]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   10.546527][  T224]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   10.546719][  T224]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   10.546895][  T224]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   10.547106][  T224]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.547282][  T224]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.547465][  T224]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.547640][  T224]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.547830][  T224]  ? __kernel_text_address (kernel/extable.c:79)
[   10.548008][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.548188][  T224]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.548364][  T224]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   10.548551][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.548740][  T224]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   10.548915][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.549090][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.549269][  T224]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   10.549446][  T224]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   10.549633][  T224]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   10.549823][  T224]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   10.550000][  T224]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   10.550179][  T224]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   10.550361][  T224]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.550554][  T224]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.550748][  T224]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.550925][  T224]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.551102][  T224]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   10.551276][  T224]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.551465][  T224]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.551641][  T224]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.551830][  T224]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.552006][  T224]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.552184][  T224]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.552366][  T224]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.552555][  T224]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.552747][  T224]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.552923][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.553101][  T224]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.553277][  T224]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.553465][  T224]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.553645][  T224]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.553838][  T224]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.554019][  T224]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   10.554194][  T224]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   10.554375][  T224]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.554570][  T224]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.554765][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.554949][  T224]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.555134][  T224]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.555320][  T224]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.555515][  T224]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.555704][  T224]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.555881][  T224]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.556089][  T224]  ? move_addr_to_kernel (net/socket.c:258)
[   10.556268][  T224]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.556447][  T224]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.556634][  T224]  ___sys_sendmsg (net/socket.c:2752)
[   10.556823][  T224]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   10.557037][  T224]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.557227][  T224]  __sys_sendmsg (net/socket.c:2784)
[   10.557404][  T224]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.557592][  T224]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   10.557819][  T224]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.557999][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.558176][  T224]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.558353][  T224]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.558534][  T224]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.558724][  T224]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.558932][  T224] RIP: 0033:0x7fee51e6e08e
[   10.559113][  T224] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.559623][  T224] RSP: 002b:00007ffdf296f830 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.559877][  T224] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fee51e6e08e
[   10.560112][  T224] RDX: 0000000000000000 RSI: 00007ffdf296f8e0 RDI: 0000000000000005
[   10.560353][  T224] RBP: 00007ffdf296f840 R08: 0000000000000000 R09: 0000000000000000
[   10.560597][  T224] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac1
[   10.560846][  T224] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdf296ffb0
| [   10.695244][  T227] ------------[ cut here ]------------
| [   10.695424][  T227] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/227
| [   10.696164][  T227] Modules linked in: ipvtap ipvlan
| [   10.696602][  T227] Tainted: [W]=WARN
[   10.696715][  T227] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.696889][  T227] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.697072][  T227] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.697573][  T227] RSP: 0018:ffa00000006b70b0 EFLAGS: 00010286
[   10.697753][  T227] RAX: 00000000ffffffa6 RBX: ff1100000c103e00 RCX: 1ff40000000d6ddc
[   10.697959][  T227] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c103ebc
[   10.698164][  T227] RBP: ff11000007edc000 R08: 1fe22000018207d9 R09: ff1100000f9eae80
[   10.698367][  T227] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   10.698579][  T227] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   10.698793][  T227] FS:  00007f419e5eb840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   10.699034][  T227] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.699210][  T227] CR2: 0000000000445730 CR3: 000000000f368006 CR4: 0000000000771ef0
[   10.699419][  T227] PKRU: 55555554
[   10.699532][  T227] Call Trace:
[   10.699635][  T227]  <TASK>
[   10.699712][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.699851][  T227]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   10.699990][  T227]  notifier_call_chain (kernel/notifier.c:85)
[   10.700130][  T227]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   10.700268][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.700406][  T227]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   10.700550][  T227]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   10.700662][  T227]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   10.700836][  T227]  ? ida_destroy (lib/idr.c:623)
[   10.700976][  T227]  netdev_upper_dev_link (net/core/dev.c:8972)
[   10.701114][  T227]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   10.701253][  T227] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   10.701394][  T227]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   10.701539][  T227]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   10.701686][  T227] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   10.701825][  T227]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   10.701965][  T227]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   10.702103][  T227]  ? __dev_get_by_name (net/core/dev.c:883)
[   10.702241][  T227]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   10.702384][  T227]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   10.702534][  T227]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.702683][  T227]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.702822][  T227]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.702960][  T227]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.703097][  T227]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   10.703234][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.703375][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.703521][  T227]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.703667][  T227]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.703805][  T227]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.703942][  T227]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.704079][  T227]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.704220][  T227]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.704357][  T227]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.704501][  T227]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.704639][  T227]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.704788][  T227]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.704930][  T227]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   10.705068][  T227]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   10.705209][  T227]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.705348][  T227]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.705494][  T227]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.705635][  T227]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.705849][  T227]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.705991][  T227]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.706131][  T227]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.706269][  T227]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.706407][  T227]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.706585][  T227]  ? move_addr_to_kernel (net/socket.c:258)
[   10.706732][  T227]  ___sys_sendmsg (net/socket.c:2752)
[   10.706870][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.707009][  T227]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.707156][  T227]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   10.707296][  T227]  __sys_sendmsg (net/socket.c:2784)
[   10.707435][  T227]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.707582][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.707726][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.707864][  T227]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.708003][  T227]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.708141][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.708279][  T227]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.708450][  T227] RIP: 0033:0x7f419e82508e
[   10.708602][  T227] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.709098][  T227] RSP: 002b:00007fff7b1ade40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.709306][  T227] RAX: ffffffffffffffda RBX: 00007fff7b1ae5f8 RCX: 00007f419e82508e
[   10.709519][  T227] RDX: 0000000000000000 RSI: 00007fff7b1adef0 RDI: 0000000000000005
[   10.709731][  T227] RBP: 00007fff7b1ade50 R08: 0000000000000000 R09: 0000000000000000
[   10.709938][  T227] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac1
[   10.710143][  T227] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff7b1ae5b0
| [   10.711778][  T227] ------------[ cut here ]------------
| [   10.711908][  T227] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/227
| [   10.712134][  T227] Modules linked in: ipvtap ipvlan
| [   10.712540][  T227] Tainted: [W]=WARN
[   10.712641][  T227] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.712812][  T227] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.712983][  T227] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.713452][  T227] RSP: 0018:ffa00000006b71b0 EFLAGS: 00010286
[   10.713623][  T227] RAX: 00000000ffffffa6 RBX: ff1100000bd5a040 RCX: 1ff40000000d6dfc
[   10.713825][  T227] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bd5a0fc
[   10.714023][  T227] RBP: ff1100000e56a000 R08: 1fe22000017ab421 R09: ff1100000f9eae80
[   10.714220][  T227] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   10.714417][  T227] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   10.714623][  T227] FS:  00007f419e5eb840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   10.714861][  T227] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.715027][  T227] CR2: 0000000000445730 CR3: 000000000f368006 CR4: 0000000000771ef0
[   10.715229][  T227] PKRU: 55555554
[   10.715329][  T227] Call Trace:
[   10.715433][  T227]  <TASK>
[   10.715510][  T227]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.715643][  T227]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.715749][  T227]  ? ida_destroy (lib/idr.c:623)
[   10.715884][  T227]  __dev_notify_flags (net/core/dev.c:9787)
[   10.716017][  T227]  ? netif_change_name (net/core/dev.c:1495)
[   10.716151][  T227]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   10.716290][  T227]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   10.716476][  T227]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   10.716642][  T227]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   10.716782][  T227]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   10.716919][  T227]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   10.717055][  T227]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   10.717201][  T227]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   10.717336][  T227]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   10.717472][  T227]  ? __dev_get_by_name (net/core/dev.c:883)
[   10.717604][  T227]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   10.717747][  T227]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   10.717885][  T227]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.718019][  T227]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.718152][  T227]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.718288][  T227]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.718421][  T227]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   10.718558][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.718699][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.718832][  T227]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.718967][  T227]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.719103][  T227]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.719234][  T227]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.719369][  T227]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.719507][  T227]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.719638][  T227]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.719775][  T227]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.719906][  T227]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.720037][  T227]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.720172][  T227]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   10.720308][  T227]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   10.720442][  T227]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.720582][  T227]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.720725][  T227]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.720857][  T227]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.720990][  T227]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.721123][  T227]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.721265][  T227]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.721403][  T227]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.721540][  T227]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.721707][  T227]  ? move_addr_to_kernel (net/socket.c:258)
[   10.721843][  T227]  ___sys_sendmsg (net/socket.c:2752)
[   10.721974][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.722105][  T227]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.722246][  T227]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   10.722384][  T227]  __sys_sendmsg (net/socket.c:2784)
[   10.722521][  T227]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.722662][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.722796][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.722929][  T227]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.723061][  T227]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.723192][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.723324][  T227]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.723496][  T227] RIP: 0033:0x7f419e82508e
[   10.723634][  T227] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.724108][  T227] RSP: 002b:00007fff7b1ade40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.724310][  T227] RAX: ffffffffffffffda RBX: 00007fff7b1ae5f8 RCX: 00007f419e82508e
[   10.724511][  T227] RDX: 0000000000000000 RSI: 00007fff7b1adef0 RDI: 0000000000000005
[   10.724714][  T227] RBP: 00007fff7b1ade50 R08: 0000000000000000 R09: 0000000000000000
[   10.724911][  T227] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac1
[   10.725113][  T227] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff7b1ae5b0
| [   10.768126][  T229] ------------[ cut here ]------------
| [   10.768331][  T229] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/229
| [   10.768619][  T229] Modules linked in: ipvtap ipvlan
| [   10.769137][  T229] Tainted: [W]=WARN
[   10.769283][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.769502][  T229] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.769737][  T229] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.770258][  T229] RSP: 0018:ffa00000006c7a80 EFLAGS: 00010286
[   10.770481][  T229] RAX: 00000000ffffffa6 RBX: ff1100000bd5b700 RCX: 1ff40000000d8f16
[   10.770736][  T229] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bd5b7bc
[   10.770979][  T229] RBP: ff1100000eb71000 R08: 1fe22000017ab6f9 R09: ff1100000f9e2e80
[   10.771220][  T229] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.771467][  T229] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000eb71000
[   10.771734][  T229] FS:  00007fa09d4a0840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   10.772011][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.772226][  T229] CR2: 00007fa09d6a7430 CR3: 0000000004ef0006 CR4: 0000000000771ef0
[   10.772476][  T229] PKRU: 55555554
[   10.772622][  T229] Call Trace:
[   10.772876][  T229]  <TASK>
[   10.773058][  T229]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.773291][  T229]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.773568][  T229]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.773821][  T229]  register_netdevice (net/core/dev.c:11488)
[   10.774089][  T229]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.774376][  T229]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   10.774636][  T229]  register_netdev (net/core/dev.c:11552)
[   10.774881][  T229]  loopback_net_init (drivers/net/loopback.c:218)
[   10.775137][  T229]  ops_init (net/core/net_namespace.c:137)
[   10.775313][  T229]  setup_net (net/core/net_namespace.c:446)
[   10.775468][  T229]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.775670][  T229]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.775849][  T229]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.776032][  T229]  copy_net_ns (net/core/net_namespace.c:579)
[   10.776212][  T229]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.776393][  T229]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.776582][  T229]  ksys_unshare (kernel/fork.c:3243)
[   10.776781][  T229]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.776962][  T229]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.777141][  T229]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.777323][  T229]  ? __ia32_sys_open (fs/open.c:1374)
[   10.777506][  T229]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.777698][  T229]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.777878][  T229]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.778059][  T229]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.778238][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.778416][  T229]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.778631][  T229] RIP: 0033:0x7fa09d762bcb
[   10.778827][  T229] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.779346][  T229] RSP: 002b:00007ffe5641ea98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   10.779597][  T229] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa09d762bcb
[   10.779852][  T229] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.780095][  T229] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.780339][  T229] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe56420cc0
[   10.780592][  T229] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5642187f
| [   10.786229][  T116] ------------[ cut here ]------------
| [   10.786368][  T116] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 2/116
| [   10.786647][  T116] Modules linked in: ipvtap ipvlan
| [   10.787051][  T116] Tainted: [W]=WARN
[   10.787143][  T116] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.787293][  T116] Workqueue: events_unbound linkwatch_event
[   10.787451][  T116] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.787637][  T116] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.788068][  T116] RSP: 0018:ffa00000004a79e0 EFLAGS: 00010286
[   10.788216][  T116] RAX: 00000000ffffffa6 RBX: ff1100000ba25380 RCX: 1ff4000000094f02
[   10.788395][  T116] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba2543c
[   10.788583][  T116] RBP: ff110000078d9000 R08: 1fe2200001744a89 R09: ff1100000f3a51a8
[   10.788765][  T116] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   10.788941][  T116] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   10.789123][  T116] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   10.789330][  T116] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.789485][  T116] CR2: 00007f068c4e6574 CR3: 000000004814d003 CR4: 0000000000771ef0
[   10.789665][  T116] PKRU: 55555554
[   10.789755][  T116] Call Trace:
[   10.789848][  T116]  <TASK>
[   10.789911][  T116]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.790032][  T116]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.790151][  T116]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.790241][  T116]  netif_state_change (net/core/dev.c:1605)
[   10.790359][  T116]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   10.790522][  T116]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   10.790641][  T116]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   10.790766][  T116]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.790889][  T116]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   10.791006][  T116]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   10.791125][  T116]  process_one_work (kernel/workqueue.c:3314)
[   10.791247][  T116]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   10.791366][  T116]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.791495][  T116]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.791615][  T116]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   10.791741][  T116]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   10.791859][  T116]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   10.791976][  T116]  kthread (kernel/kthread.c:436)
[   10.792067][  T116]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.792214][  T116]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.792333][  T116]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.792458][  T116]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   10.792608][  T116]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   10.792732][  T116]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.792850][  T116]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   10.810466][  T229] ------------[ cut here ]------------
| [   10.810619][  T229] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/229
| [   10.810875][  T229] Modules linked in: ipvtap ipvlan
| [   10.811282][  T229] Tainted: [W]=WARN
[   10.811381][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.811554][  T229] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.811731][  T229] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.812199][  T229] RSP: 0018:ffa00000006c7918 EFLAGS: 00010286
[   10.812363][  T229] RAX: 00000000ffffffa6 RBX: ff1100000ce0a740 RCX: 1ff40000000d8ee9
[   10.812562][  T229] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce0a7fc
[   10.812763][  T229] RBP: ff11000008471000 R08: 1fe22000019c1501 R09: ff1100000f9e2e80
[   10.812959][  T229] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   10.813154][  T229] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008471000
[   10.813350][  T229] FS:  00007fa09d4a0840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   10.813589][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.813763][  T229] CR2: 00005559e9c93d5c CR3: 0000000004ef0001 CR4: 0000000000771ef0
[   10.813961][  T229] PKRU: 55555554
[   10.814058][  T229] Call Trace:
[   10.814156][  T229]  <TASK>
[   10.814224][  T229]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.814355][  T229]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.814493][  T229]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.814594][  T229]  register_netdevice (net/core/dev.c:11488)
[   10.814731][  T229]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.814894][  T229]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   10.815028][  T229]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   10.815162][  T229]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   10.815294][  T229]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   10.815427][  T229]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   10.815563][  T229]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   10.815702][  T229]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   10.815834][  T229]  ops_init (net/core/net_namespace.c:137)
[   10.815933][  T229]  setup_net (net/core/net_namespace.c:446)
[   10.816031][  T229]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.816160][  T229]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.816292][  T229]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.816425][  T229]  copy_net_ns (net/core/net_namespace.c:579)
[   10.816560][  T229]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.816698][  T229]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.816827][  T229]  ksys_unshare (kernel/fork.c:3243)
[   10.816955][  T229]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.817084][  T229]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.817215][  T229]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.817345][  T229]  ? __ia32_sys_open (fs/open.c:1374)
[   10.817481][  T229]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.817609][  T229]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.817742][  T229]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.817870][  T229]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.817999][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.818129][  T229]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.818290][  T229] RIP: 0033:0x7fa09d762bcb
[   10.818424][  T229] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.818889][  T229] RSP: 002b:00007ffe5641ea98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   10.819082][  T229] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa09d762bcb
[   10.819277][  T229] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.819471][  T229] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.819666][  T229] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe56420cc0
[   10.819858][  T229] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5642187f
| [   10.823829][  T229] ------------[ cut here ]------------
| [   10.823964][  T229] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/229
| [   10.824191][  T229] Modules linked in: ipvtap ipvlan
| [   10.824592][  T229] Tainted: [W]=WARN
[   10.824696][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.824859][  T229] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.825042][  T229] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.825512][  T229] RSP: 0018:ffa00000006c78f8 EFLAGS: 00010286
[   10.825682][  T229] RAX: 00000000ffffffa6 RBX: ff1100000beb3700 RCX: 1ff40000000d8ee5
[   10.825883][  T229] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000beb37bc
[   10.826077][  T229] RBP: ff1100000945c000 R08: 1fe22000017d66f9 R09: ff1100000f9e2e80
[   10.826271][  T229] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   10.826467][  T229] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000945c000
[   10.826667][  T229] FS:  00007fa09d4a0840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   10.826899][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.827062][  T229] CR2: 00005559e9c93d5c CR3: 0000000004ef0001 CR4: 0000000000771ef0
[   10.827259][  T229] PKRU: 55555554
[   10.827360][  T229] Call Trace:
[   10.827459][  T229]  <TASK>
[   10.827527][  T229]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.827667][  T229]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.827799][  T229]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.827898][  T229]  register_netdevice (net/core/dev.c:11488)
[   10.828031][  T229]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.828193][  T229]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   10.828325][  T229]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   10.828461][  T229]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   10.828597][  T229]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   10.828733][  T229]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   10.828864][  T229]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   10.828996][  T229]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   10.829126][  T229]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   10.829259][  T229]  vti_init_net (net/ipv4/ip_vti.c:517)
[   10.829389][  T229]  ops_init (net/core/net_namespace.c:137)
[   10.829494][  T229]  setup_net (net/core/net_namespace.c:446)
[   10.829597][  T229]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.829731][  T229]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.829862][  T229]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.829996][  T229]  copy_net_ns (net/core/net_namespace.c:579)
[   10.830127][  T229]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.830260][  T229]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.830391][  T229]  ksys_unshare (kernel/fork.c:3243)
[   10.830531][  T229]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.830666][  T229]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.830797][  T229]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.830928][  T229]  ? __ia32_sys_open (fs/open.c:1374)
[   10.831061][  T229]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.831191][  T229]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.831321][  T229]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.831457][  T229]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.831588][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.831723][  T229]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.831886][  T229] RIP: 0033:0x7fa09d762bcb
[   10.832023][  T229] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.832496][  T229] RSP: 002b:00007ffe5641ea98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   10.832698][  T229] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa09d762bcb
[   10.832891][  T229] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.833087][  T229] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.833287][  T229] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe56420cc0
[   10.833490][  T229] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5642187f
| [   10.837589][  T229] ------------[ cut here ]------------
| [   10.837749][  T229] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/229
| [   10.837973][  T229] Modules linked in: ipvtap ipvlan
| [   10.838369][  T229] Tainted: [W]=WARN
[   10.838478][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.838641][  T229] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.838815][  T229] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.839280][  T229] RSP: 0018:ffa00000006c7a78 EFLAGS: 00010286
[   10.839443][  T229] RAX: 00000000ffffffa6 RBX: ff1100000beb2900 RCX: 1ff40000000d8f15
[   10.839641][  T229] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000beb29bc
[   10.839839][  T229] RBP: ff1100000f169000 R08: 1fe22000017d6539 R09: ff1100000f9e2e80
[   10.840034][  T229] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   10.840234][  T229] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f169000
[   10.840430][  T229] FS:  00007fa09d4a0840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   10.840666][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.840829][  T229] CR2: 00005559e9c93d5c CR3: 0000000004ef0001 CR4: 0000000000771ef0
[   10.841030][  T229] PKRU: 55555554
[   10.841127][  T229] Call Trace:
[   10.841223][  T229]  <TASK>
[   10.841291][  T229]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.841423][  T229]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.841564][  T229]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.841667][  T229]  register_netdevice (net/core/dev.c:11488)
[   10.841798][  T229]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.841962][  T229]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.842096][  T229]  register_netdev (net/core/dev.c:11552)
[   10.842224][  T229]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   10.842356][  T229]  ops_init (net/core/net_namespace.c:137)
[   10.842457][  T229]  setup_net (net/core/net_namespace.c:446)
[   10.842556][  T229]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.842690][  T229]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.842824][  T229]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.842955][  T229]  copy_net_ns (net/core/net_namespace.c:579)
[   10.843085][  T229]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.843217][  T229]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.843348][  T229]  ksys_unshare (kernel/fork.c:3243)
[   10.843483][  T229]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.843612][  T229]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.843750][  T229]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.843880][  T229]  ? __ia32_sys_open (fs/open.c:1374)
[   10.844012][  T229]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.844141][  T229]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.844269][  T229]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.844399][  T229]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.844530][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.844664][  T229]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.844828][  T229] RIP: 0033:0x7fa09d762bcb
[   10.844962][  T229] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.845418][  T229] RSP: 002b:00007ffe5641ea98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   10.845617][  T229] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa09d762bcb
[   10.845817][  T229] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.846010][  T229] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.846203][  T229] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe56420cc0
[   10.846395][  T229] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5642187f
| [   10.850413][  T229] ------------[ cut here ]------------
| [   10.850555][  T229] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/229
| [   10.850791][  T229] Modules linked in: ipvtap ipvlan
| [   10.851192][  T229] Tainted: [W]=WARN
[   10.851295][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.851482][  T229] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.851656][  T229] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.852121][  T229] RSP: 0018:ffa00000006c7a68 EFLAGS: 00010286
[   10.852284][  T229] RAX: 00000000ffffffa6 RBX: ff1100000ce0b8c0 RCX: 1ff40000000d8f13
[   10.852485][  T229] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce0b97c
[   10.852687][  T229] RBP: ff1100000f0e4000 R08: 1fe22000019c1731 R09: ff1100000f9e2e80
[   10.852881][  T229] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   10.853074][  T229] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f0e4000
[   10.853269][  T229] FS:  00007fa09d4a0840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   10.853504][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.853672][  T229] CR2: 00005559e9c93d5c CR3: 0000000004ef0001 CR4: 0000000000771ef0
[   10.853869][  T229] PKRU: 55555554
[   10.853967][  T229] Call Trace:
[   10.854063][  T229]  <TASK>
[   10.854131][  T229]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.854262][  T229]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.854395][  T229]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.854501][  T229]  register_netdevice (net/core/dev.c:11488)
[   10.854632][  T229]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.854803][  T229]  register_netdev (net/core/dev.c:11552)
[   10.854934][  T229]  sit_init_net (net/ipv6/sit.c:1860)
[   10.855065][  T229]  ops_init (net/core/net_namespace.c:137)
[   10.855165][  T229]  setup_net (net/core/net_namespace.c:446)
[   10.855269][  T229]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.855398][  T229]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.855530][  T229]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.855668][  T229]  copy_net_ns (net/core/net_namespace.c:579)
[   10.855799][  T229]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.855931][  T229]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.856062][  T229]  ksys_unshare (kernel/fork.c:3243)
[   10.856195][  T229]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.856325][  T229]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.856458][  T229]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.856589][  T229]  ? __ia32_sys_open (fs/open.c:1374)
[   10.856729][  T229]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.856859][  T229]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.856988][  T229]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.857123][  T229]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.857252][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.857383][  T229]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.857549][  T229] RIP: 0033:0x7fa09d762bcb
[   10.857689][  T229] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.858173][  T229] RSP: 002b:00007ffe5641ea98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   10.858371][  T229] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa09d762bcb
[   10.858570][  T229] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.858768][  T229] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.858966][  T229] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe56420cc0
[   10.859159][  T229] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5642187f
| [   10.863742][  T229] ------------[ cut here ]------------
| [   10.863890][  T229] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/229
| [   10.864116][  T229] Modules linked in: ipvtap ipvlan
| [   10.864518][  T229] Tainted: [W]=WARN
[   10.864621][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.864791][  T229] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.864958][  T229] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.865418][  T229] RSP: 0018:ffa00000006c7a78 EFLAGS: 00010286
[   10.865591][  T229] RAX: 00000000ffffffa6 RBX: ff1100000bef3e00 RCX: 1ff40000000d8f15
[   10.865791][  T229] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bef3ebc
[   10.865984][  T229] RBP: ff1100000e8b1000 R08: 1fe22000017de7d9 R09: ff1100000f9e2e80
[   10.866179][  T229] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   10.866377][  T229] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e8b1000
[   10.866578][  T229] FS:  00007fa09d4a0840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   10.866811][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.866974][  T229] CR2: 00005559e9c93d5c CR3: 0000000004ef0001 CR4: 0000000000771ef0
[   10.867175][  T229] PKRU: 55555554
[   10.867273][  T229] Call Trace:
[   10.867369][  T229]  <TASK>
[   10.867437][  T229]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.867571][  T229]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.867708][  T229]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.867808][  T229]  register_netdevice (net/core/dev.c:11488)
[   10.867939][  T229]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.868103][  T229]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.868237][  T229]  register_netdev (net/core/dev.c:11552)
[   10.868372][  T229]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   10.868508][  T229]  ops_init (net/core/net_namespace.c:137)
[   10.868607][  T229]  setup_net (net/core/net_namespace.c:446)
[   10.868711][  T229]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.868840][  T229]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.868969][  T229]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.869108][  T229]  copy_net_ns (net/core/net_namespace.c:579)
[   10.869239][  T229]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.869371][  T229]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.869505][  T229]  ksys_unshare (kernel/fork.c:3243)
[   10.869635][  T229]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.869771][  T229]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.869905][  T229]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   10.870036][  T229]  ? __ia32_sys_open (fs/open.c:1374)
[   10.870168][  T229]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.870296][  T229]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.870425][  T229]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.870560][  T229]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.870695][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.870827][  T229]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.870991][  T229] RIP: 0033:0x7fa09d762bcb
[   10.871126][  T229] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.871596][  T229] RSP: 002b:00007ffe5641ea98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   10.871796][  T229] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa09d762bcb
[   10.871993][  T229] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   10.872186][  T229] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   10.872381][  T229] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe56420cc0
[   10.872581][  T229] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5642187f
| [   10.904632][  T230] ------------[ cut here ]------------
| [   10.905438][  T230] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/230
| [   10.905848][  T230] Modules linked in: ipvtap ipvlan
| [   10.906333][  T230] Tainted: [W]=WARN
[   10.906482][  T230] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.906701][  T230] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.906914][  T230] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.907413][  T230] RSP: 0018:ffa00000006c7020 EFLAGS: 00010286
[   10.907628][  T230] RAX: 00000000ffffffa6 RBX: ff1100000becfa80 RCX: 1ff40000000d8dca
[   10.907877][  T230] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000becfb3c
[   10.908112][  T230] RBP: ff1100000eb71000 R08: 1fe22000017d9f69 R09: ff1100000f9e0b58
[   10.908350][  T230] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   10.908594][  T230] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   10.908843][  T230] FS:  00007f859526e840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   10.909111][  T230] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.909320][  T230] CR2: 0000000008d4e988 CR3: 000000000ea4f002 CR4: 0000000000771ef0
[   10.909566][  T230] PKRU: 55555554
[   10.909720][  T230] Call Trace:
[   10.909862][  T230]  <TASK>
[   10.909975][  T230]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.910151][  T230]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.910296][  T230]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   10.910477][  T230]  __dev_notify_flags (net/core/dev.c:9787)
[   10.910672][  T230]  ? netif_change_name (net/core/dev.c:1495)
[   10.910848][  T230]  ? __dev_change_flags (net/core/dev.c:9752)
[   10.911024][  T230]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   10.911198][  T230]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.911374][  T230]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   10.911561][  T230]  netif_change_flags (net/core/dev.c:9820)
[   10.911751][  T230]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   10.911930][  T230]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   10.912109][  T230]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   10.912285][  T230]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   10.912499][  T230]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.912698][  T230]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.912874][  T230]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.913052][  T230]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.913229][  T230]  ? __kernel_text_address (kernel/extable.c:79)
[   10.913405][  T230]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.913592][  T230]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.913780][  T230]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   10.913965][  T230]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.914141][  T230]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   10.914315][  T230]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.914500][  T230]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.914688][  T230]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   10.914865][  T230]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   10.915039][  T230]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   10.915215][  T230]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   10.915392][  T230]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   10.915579][  T230]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   10.915770][  T230]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.915950][  T230]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.916124][  T230]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.916300][  T230]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.916481][  T230]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   10.916668][  T230]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.916847][  T230]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.917021][  T230]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.917199][  T230]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.917394][  T230]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.917584][  T230]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.917777][  T230]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.917953][  T230]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.918127][  T230]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.918302][  T230]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.918484][  T230]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.918675][  T230]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.918853][  T230]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.919029][  T230]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.919204][  T230]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.919383][  T230]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   10.919565][  T230]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   10.919757][  T230]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.919937][  T230]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.920113][  T230]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.920290][  T230]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.920477][  T230]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.920669][  T230]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.920848][  T230]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.921026][  T230]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.921201][  T230]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.921411][  T230]  ? move_addr_to_kernel (net/socket.c:258)
[   10.921599][  T230]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.921790][  T230]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.921969][  T230]  ___sys_sendmsg (net/socket.c:2752)
[   10.922144][  T230]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   10.922351][  T230]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.922547][  T230]  __sys_sendmsg (net/socket.c:2784)
[   10.922737][  T230]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.922911][  T230]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   10.923122][  T230]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.923299][  T230]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   10.923481][  T230]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.923671][  T230]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.923846][  T230]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.924024][  T230]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.924201][  T230]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.924411][  T230] RIP: 0033:0x7f85954a808e
[   10.924601][  T230] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.925119][  T230] RSP: 002b:00007ffd00364eb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.925360][  T230] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f85954a808e
[   10.925608][  T230] RDX: 0000000000000000 RSI: 00007ffd00364f60 RDI: 0000000000000005
[   10.925859][  T230] RBP: 00007ffd00364ec0 R08: 0000000000000000 R09: 0000000000000000
[   10.926095][  T230] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac2
[   10.926335][  T230] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd00365630
| [   11.046530][  T233] ------------[ cut here ]------------
| [   11.046724][  T233] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/233
| [   11.046970][  T233] Modules linked in: ipvtap ipvlan
| [   11.047396][  T233] Tainted: [W]=WARN
[   11.047504][  T233] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.047683][  T233] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.047864][  T233] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.048354][  T233] RSP: 0018:ffa00000006d70b0 EFLAGS: 00010286
[   11.048534][  T233] RAX: 00000000ffffffa6 RBX: ff1100000ce0bc40 RCX: 1ff40000000daddc
[   11.048750][  T233] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce0bcfc
[   11.048956][  T233] RBP: ff11000007edc000 R08: 1fe22000019c17a1 R09: ff1100000f885180
[   11.049161][  T233] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   11.049366][  T233] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   11.049576][  T233] FS:  00007fc54e14f840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   11.049822][  T233] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.049994][  T233] CR2: 0000000000445730 CR3: 0000000004f08005 CR4: 0000000000771ef0
[   11.050201][  T233] PKRU: 55555554
[   11.050304][  T233] Call Trace:
[   11.050407][  T233]  <TASK>
[   11.050484][  T233]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.050623][  T233]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   11.050769][  T233]  notifier_call_chain (kernel/notifier.c:85)
[   11.050914][  T233]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   11.051052][  T233]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.051192][  T233]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   11.051330][  T233]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   11.051436][  T233]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   11.051643][  T233]  ? ida_destroy (lib/idr.c:623)
[   11.051789][  T233]  netdev_upper_dev_link (net/core/dev.c:8972)
[   11.051928][  T233]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   11.052068][  T233] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   11.052212][  T233]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   11.052350][  T233]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   11.052499][  T233] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   11.052639][  T233]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   11.052785][  T233]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.052924][  T233]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.053061][  T233]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.053207][  T233]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.053350][  T233]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.053496][  T233]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.053634][  T233]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.053777][  T233]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.053916][  T233]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.054054][  T233]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.054198][  T233]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.054340][  T233]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.054485][  T233]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.054626][  T233]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.054768][  T233]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.054906][  T233]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.055047][  T233]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.055185][  T233]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.055327][  T233]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.055470][  T233]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.055608][  T233]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.055815][  T233]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.056013][  T233]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.056154][  T233]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.056294][  T233]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.056433][  T233]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.056579][  T233]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.056729][  T233]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.056869][  T233]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.057010][  T233]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.057148][  T233]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.057287][  T233]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.057462][  T233]  ? move_addr_to_kernel (net/socket.c:258)
[   11.057607][  T233]  ___sys_sendmsg (net/socket.c:2752)
[   11.057751][  T233]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.057889][  T233]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.058036][  T233]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   11.058176][  T233]  __sys_sendmsg (net/socket.c:2784)
[   11.058316][  T233]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.058461][  T233]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.058600][  T233]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.058744][  T233]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.058882][  T233]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.059020][  T233]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.059157][  T233]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.059329][  T233] RIP: 0033:0x7fc54e38908e
[   11.059479][  T233] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.059985][  T233] RSP: 002b:00007ffdfd0a74f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.060195][  T233] RAX: ffffffffffffffda RBX: 00007ffdfd0a7ca8 RCX: 00007fc54e38908e
[   11.060401][  T233] RDX: 0000000000000000 RSI: 00007ffdfd0a75a0 RDI: 0000000000000005
[   11.060615][  T233] RBP: 00007ffdfd0a7500 R08: 0000000000000000 R09: 0000000000000000
[   11.060827][  T233] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac2
[   11.061035][  T233] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdfd0a7c60
| [   11.062678][  T233] ------------[ cut here ]------------
| [   11.062806][  T233] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/233
| [   11.063032][  T233] Modules linked in: ipvtap ipvlan
| [   11.063435][  T233] Tainted: [W]=WARN
[   11.063539][  T233] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.063710][  T233] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.063882][  T233] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.064354][  T233] RSP: 0018:ffa00000006d71b0 EFLAGS: 00010286
[   11.064521][  T233] RAX: 00000000ffffffa6 RBX: ff1100000ce0ba80 RCX: 1ff40000000dadfc
[   11.064723][  T233] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce0bb3c
[   11.064918][  T233] RBP: ff1100000e4ba000 R08: 1fe22000019c1769 R09: ff1100000f885180
[   11.065130][  T233] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   11.065326][  T233] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   11.065530][  T233] FS:  00007fc54e14f840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   11.065762][  T233] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.065935][  T233] CR2: 0000000000445730 CR3: 0000000004f08005 CR4: 0000000000771ef0
[   11.066132][  T233] PKRU: 55555554
[   11.066230][  T233] Call Trace:
[   11.066328][  T233]  <TASK>
[   11.066396][  T233]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.066534][  T233]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.066635][  T233]  ? ida_destroy (lib/idr.c:623)
[   11.066775][  T233]  __dev_notify_flags (net/core/dev.c:9787)
[   11.066918][  T233]  ? netif_change_name (net/core/dev.c:1495)
[   11.067048][  T233]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   11.067179][  T233]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   11.067347][  T233]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   11.067514][  T233]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   11.067646][  T233]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   11.067786][  T233]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.067924][  T233]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   11.068056][  T233]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   11.068190][  T233]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.068322][  T233]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.068452][  T233]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.068617][  T233]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.068760][  T233]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.068894][  T233]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.069029][  T233]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.069161][  T233]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.069291][  T233]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.069422][  T233]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.069560][  T233]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.069699][  T233]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.069831][  T233]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.069966][  T233]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.070098][  T233]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.070228][  T233]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.070362][  T233]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.070498][  T233]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.070631][  T233]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.070769][  T233]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.070900][  T233]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.071040][  T233]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.071171][  T233]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.071306][  T233]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.071441][  T233]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.071587][  T233]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.071727][  T233]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.071860][  T233]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.071999][  T233]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.072132][  T233]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.072264][  T233]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.072396][  T233]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.072569][  T233]  ? move_addr_to_kernel (net/socket.c:258)
[   11.072712][  T233]  ___sys_sendmsg (net/socket.c:2752)
[   11.072842][  T233]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.072977][  T233]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.073120][  T233]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   11.073255][  T233]  __sys_sendmsg (net/socket.c:2784)
[   11.073390][  T233]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.073530][  T233]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.073667][  T233]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.073800][  T233]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.073931][  T233]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.074068][  T233]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.074200][  T233]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.074365][  T233] RIP: 0033:0x7fc54e38908e
[   11.074508][  T233] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.074990][  T233] RSP: 002b:00007ffdfd0a74f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.075191][  T233] RAX: ffffffffffffffda RBX: 00007ffdfd0a7ca8 RCX: 00007fc54e38908e
[   11.075390][  T233] RDX: 0000000000000000 RSI: 00007ffdfd0a75a0 RDI: 0000000000000005
[   11.075595][  T233] RBP: 00007ffdfd0a7500 R08: 0000000000000000 R09: 0000000000000000
[   11.075798][  T233] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac2
[   11.075998][  T233] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdfd0a7c60
| [   11.131885][  T235] ------------[ cut here ]------------
| [   11.132092][  T235] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/235
| [   11.132366][  T235] Modules linked in: ipvtap ipvlan
| [   11.133027][  T235] Tainted: [W]=WARN
[   11.133169][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.133379][  T235] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.133605][  T235] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.134125][  T235] RSP: 0018:ffa0000000697a80 EFLAGS: 00010286
[   11.134339][  T235] RAX: 00000000ffffffa6 RBX: ff1100000d599380 RCX: 1ff40000000d2f16
[   11.134588][  T235] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d59943c
[   11.134839][  T235] RBP: ff1100000e489000 R08: 1fe2200001ab3289 R09: ff1100000283ae80
[   11.135078][  T235] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.135321][  T235] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e489000
[   11.135570][  T235] FS:  00007fdbee6f3840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   11.135869][  T235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.136080][  T235] CR2: 00007fdbee8fa430 CR3: 0000000004aef002 CR4: 0000000000771ef0
[   11.136332][  T235] PKRU: 55555554
[   11.136487][  T235] Call Trace:
[   11.136635][  T235]  <TASK>
[   11.136761][  T235]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.136939][  T235]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.137116][  T235]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.137264][  T235]  register_netdevice (net/core/dev.c:11488)
[   11.137443][  T235]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.137675][  T235]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.137857][  T235]  register_netdev (net/core/dev.c:11552)
[   11.138035][  T235]  loopback_net_init (drivers/net/loopback.c:218)
[   11.138216][  T235]  ops_init (net/core/net_namespace.c:137)
[   11.138364][  T235]  setup_net (net/core/net_namespace.c:446)
[   11.138519][  T235]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.138778][  T235]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.139013][  T235]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.139213][  T235]  copy_net_ns (net/core/net_namespace.c:579)
[   11.139390][  T235]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.139580][  T235]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.139768][  T235]  ksys_unshare (kernel/fork.c:3243)
[   11.139947][  T235]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.140124][  T235]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.140301][  T235]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.140496][  T235]  ? __ia32_sys_open (fs/open.c:1374)
[   11.140693][  T235]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.140879][  T235]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.141056][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.141233][  T235]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.141412][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.141601][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.141826][  T235] RIP: 0033:0x7fdbee9b5bcb
[   11.142013][  T235] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.142532][  T235] RSP: 002b:00007ffd8d115948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   11.142793][  T235] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdbee9b5bcb
[   11.143037][  T235] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.143276][  T235] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.143527][  T235] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd8d117b70
[   11.143780][  T235] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd8d11887f
| [   11.149045][  T235] ------------[ cut here ]------------
| [   11.149222][  T235] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/235
| [   11.149511][  T235] Modules linked in: ipvtap ipvlan
| [   11.150011][  T235] Tainted: [W]=WARN
[   11.150154][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.150361][  T235] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.150589][  T235] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.151179][  T235] RSP: 0018:ffa0000000697918 EFLAGS: 00010286
[   11.151445][  T235] RAX: 00000000ffffffa6 RBX: ff1100000bfade00 RCX: 1ff40000000d2ee9
[   11.151762][  T235] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bfadebc
[   11.152061][  T235] RBP: ff1100000e46c000 R08: 1fe22000017f5bd9 R09: ff1100000283ae80
[   11.152357][  T235] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.152671][  T235] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e46c000
[   11.152968][  T235] FS:  00007fdbee6f3840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   11.153299][  T235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.153571][  T235] CR2: 00007fdbee8fa430 CR3: 0000000004aef002 CR4: 0000000000771ef0
[   11.153879][  T235] PKRU: 55555554
[   11.154075][  T235] Call Trace:
[   11.154274][  T235]  <TASK>
[   11.154442][  T235]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.154699][  T235]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.154932][  T235]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.155125][  T235]  register_netdevice (net/core/dev.c:11488)
[   11.155302][  T235]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.155518][  T235]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.155707][  T235]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   11.155887][  T235]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   11.156067][  T235]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   11.156246][  T235]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   11.156424][  T235]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   11.156606][  T235]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   11.156799][  T235]  ops_init (net/core/net_namespace.c:137)
[   11.156948][  T235]  setup_net (net/core/net_namespace.c:446)
[   11.157095][  T235]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.157271][  T235]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.157451][  T235]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.157639][  T235]  copy_net_ns (net/core/net_namespace.c:579)
[   11.157831][  T235]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.158011][  T235]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.158188][  T235]  ksys_unshare (kernel/fork.c:3243)
[   11.158365][  T235]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.158551][  T235]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.158746][  T235]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.158925][  T235]  ? __ia32_sys_open (fs/open.c:1374)
[   11.159103][  T235]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.159279][  T235]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.159464][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.159641][  T235]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.159829][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.160009][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.160219][  T235] RIP: 0033:0x7fdbee9b5bcb
[   11.160401][  T235] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.160924][  T235] RSP: 002b:00007ffd8d115948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   11.161169][  T235] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdbee9b5bcb
[   11.161406][  T235] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.161665][  T235] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.161903][  T235] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd8d117b70
[   11.162141][  T235] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd8d11887f
| [   11.166422][  T235] ------------[ cut here ]------------
| [   11.166605][  T235] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/235
| [   11.166897][  T235] Modules linked in: ipvtap ipvlan
| [   11.167388][  T235] Tainted: [W]=WARN
[   11.167538][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.167762][  T235] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.167984][  T235] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.168503][  T235] RSP: 0018:ffa00000006978f8 EFLAGS: 00010286
[   11.169258][  T235] RAX: 00000000ffffffa6 RBX: ff1100000bface40 RCX: 1ff40000000d2ee5
[   11.169614][  T235] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bfacefc
[   11.169935][  T235] RBP: ff1100000e464000 R08: 1fe22000017f59e1 R09: ff1100000283ae80
[   11.170241][  T235] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.170553][  T235] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e464000
[   11.170877][  T235] FS:  00007fdbee6f3840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   11.171206][  T235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.171479][  T235] CR2: 00007fdbee8fa430 CR3: 0000000004aef002 CR4: 0000000000771ef0
[   11.171792][  T235] PKRU: 55555554
[   11.171990][  T235] Call Trace:
[   11.172189][  T235]  <TASK>
[   11.172357][  T235]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.172603][  T235]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.172853][  T235]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.173055][  T235]  register_netdevice (net/core/dev.c:11488)
[   11.173289][  T235]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.173560][  T235]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.173807][  T235]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   11.174039][  T235]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   11.174273][  T235]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   11.174514][  T235]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   11.174760][  T235]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   11.174997][  T235]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   11.175230][  T235]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.175474][  T235]  vti_init_net (net/ipv4/ip_vti.c:517)
[   11.175722][  T235]  ops_init (net/core/net_namespace.c:137)
[   11.175871][  T235]  setup_net (net/core/net_namespace.c:446)
[   11.176021][  T235]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.176197][  T235]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.176375][  T235]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.176566][  T235]  copy_net_ns (net/core/net_namespace.c:579)
[   11.176761][  T235]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.176943][  T235]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.177125][  T235]  ksys_unshare (kernel/fork.c:3243)
[   11.177303][  T235]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.177488][  T235]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.177681][  T235]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.177861][  T235]  ? __ia32_sys_open (fs/open.c:1374)
[   11.178040][  T235]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.178217][  T235]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.178394][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.178586][  T235]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.178779][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.178959][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.179168][  T235] RIP: 0033:0x7fdbee9b5bcb
[   11.179350][  T235] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.179882][  T235] RSP: 002b:00007ffd8d115948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   11.180126][  T235] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdbee9b5bcb
[   11.180366][  T235] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.180615][  T235] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.180869][  T235] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd8d117b70
[   11.181109][  T235] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd8d11887f
| [   11.185768][  T235] ------------[ cut here ]------------
| [   11.185943][  T235] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/235
| [   11.186214][  T235] Modules linked in: ipvtap ipvlan
| [   11.186731][  T235] Tainted: [W]=WARN
[   11.186875][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.187084][  T235] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.187301][  T235] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.188367][  T235] RSP: 0018:ffa0000000697a78 EFLAGS: 00010286
[   11.188645][  T235] RAX: 00000000ffffffa6 RBX: ff1100000bfac040 RCX: 1ff40000000d2f15
[   11.189013][  T235] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bfac0fc
[   11.189309][  T235] RBP: ff1100000fe0c000 R08: 1fe22000017f5821 R09: ff1100000283ae80
[   11.189624][  T235] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.189952][  T235] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fe0c000
[   11.190249][  T235] FS:  00007fdbee6f3840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   11.190589][  T235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.190867][  T235] CR2: 00007fdbee8fa430 CR3: 0000000004aef002 CR4: 0000000000771ef0
[   11.191167][  T235] PKRU: 55555554
[   11.191364][  T235] Call Trace:
[   11.191570][  T235]  <TASK>
[   11.191752][  T235]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.191984][  T235]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.192214][  T235]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.192414][  T235]  register_netdevice (net/core/dev.c:11488)
[   11.192676][  T235]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.192943][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.193175][  T235]  register_netdev (net/core/dev.c:11552)
[   11.193405][  T235]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   11.193646][  T235]  ops_init (net/core/net_namespace.c:137)
[   11.193885][  T235]  setup_net (net/core/net_namespace.c:446)
[   11.194030][  T235]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.194208][  T235]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.194393][  T235]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.194586][  T235]  copy_net_ns (net/core/net_namespace.c:579)
[   11.194783][  T235]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.194964][  T235]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.195142][  T235]  ksys_unshare (kernel/fork.c:3243)
[   11.195319][  T235]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.195505][  T235]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.195697][  T235]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.195876][  T235]  ? __ia32_sys_open (fs/open.c:1374)
[   11.196056][  T235]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.196233][  T235]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.196410][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.196595][  T235]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.196784][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.196966][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.197174][  T235] RIP: 0033:0x7fdbee9b5bcb
[   11.197356][  T235] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.197884][  T235] RSP: 002b:00007ffd8d115948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   11.198129][  T235] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdbee9b5bcb
[   11.198368][  T235] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.198615][  T235] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.198864][  T235] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd8d117b70
[   11.199108][  T235] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd8d11887f
| [   11.210177][  T235] ------------[ cut here ]------------
| [   11.210354][  T235] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/235
| [   11.210640][  T235] Modules linked in: ipvtap ipvlan
| [   11.211150][  T235] Tainted: [W]=WARN
[   11.211306][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.211524][  T235] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.211784][  T235] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.212289][  T235] RSP: 0018:ffa0000000697a68 EFLAGS: 00010286
[   11.212504][  T235] RAX: 00000000ffffffa6 RBX: ff1100000d5df000 RCX: 1ff40000000d2f13
[   11.212761][  T235] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d5df0bc
[   11.213001][  T235] RBP: ff1100000fce9000 R08: 1fe2200001abbe19 R09: ff1100000283ae80
[   11.213242][  T235] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.213491][  T235] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fce9000
[   11.213749][  T235] FS:  00007fdbee6f3840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   11.214023][  T235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.214233][  T235] CR2: 00007fdbee8fa430 CR3: 0000000004aef002 CR4: 0000000000771ef0
[   11.214482][  T235] PKRU: 55555554
[   11.214626][  T235] Call Trace:
[   11.214783][  T235]  <TASK>
[   11.214898][  T235]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.215079][  T235]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.215257][  T235]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.215403][  T235]  register_netdevice (net/core/dev.c:11488)
[   11.215591][  T235]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.215820][  T235]  register_netdev (net/core/dev.c:11552)
[   11.215998][  T235]  sit_init_net (net/ipv6/sit.c:1860)
[   11.216177][  T235]  ops_init (net/core/net_namespace.c:137)
[   11.216324][  T235]  setup_net (net/core/net_namespace.c:446)
[   11.216479][  T235]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.216668][  T235]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.216845][  T235]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.217029][  T235]  copy_net_ns (net/core/net_namespace.c:579)
[   11.217208][  T235]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.217387][  T235]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.217569][  T235]  ksys_unshare (kernel/fork.c:3243)
[   11.217757][  T235]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.217933][  T235]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.218109][  T235]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.218289][  T235]  ? __ia32_sys_open (fs/open.c:1374)
[   11.218475][  T235]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.218666][  T235]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.218841][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.219017][  T235]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.219195][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.219373][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.219588][  T235] RIP: 0033:0x7fdbee9b5bcb
[   11.219786][  T235] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.220291][  T235] RSP: 002b:00007ffd8d115948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   11.220540][  T235] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdbee9b5bcb
[   11.220798][  T235] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.221038][  T235] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.221279][  T235] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd8d117b70
[   11.221528][  T235] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd8d11887f
| [   11.226640][  T235] ------------[ cut here ]------------
| [   11.226825][  T235] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/235
| [   11.227105][  T235] Modules linked in: ipvtap ipvlan
| [   11.227604][  T235] Tainted: [W]=WARN
[   11.227763][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.227974][  T235] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.228191][  T235] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.228726][  T235] RSP: 0018:ffa0000000697a78 EFLAGS: 00010286
[   11.228941][  T235] RAX: 00000000ffffffa6 RBX: ff1100000cab3540 RCX: 1ff40000000d2f15
[   11.229184][  T235] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cab35fc
[   11.229427][  T235] RBP: ff1100000fca1000 R08: 1fe22000019566c1 R09: ff1100000283ae80
[   11.229688][  T235] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.229930][  T235] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fca1000
[   11.230174][  T235] FS:  00007fdbee6f3840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   11.230452][  T235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.230684][  T235] CR2: 00007fdbee8fa430 CR3: 0000000004aef002 CR4: 0000000000771ef0
[   11.230929][  T235] PKRU: 55555554
[   11.231074][  T235] Call Trace:
[   11.231219][  T235]  <TASK>
[   11.231333][  T235]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.231521][  T235]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.231712][  T235]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.231861][  T235]  register_netdevice (net/core/dev.c:11488)
[   11.232040][  T235]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.232249][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.232430][  T235]  register_netdev (net/core/dev.c:11552)
[   11.232615][  T235]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   11.233125][  T235]  ops_init (net/core/net_namespace.c:137)
[   11.233283][  T235]  setup_net (net/core/net_namespace.c:446)
[   11.233431][  T235]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.233618][  T235]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.233807][  T235]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.233998][  T235]  copy_net_ns (net/core/net_namespace.c:579)
[   11.234177][  T235]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.234358][  T235]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.234548][  T235]  ksys_unshare (kernel/fork.c:3243)
[   11.234739][  T235]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.234919][  T235]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.235096][  T235]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.235276][  T235]  ? __ia32_sys_open (fs/open.c:1374)
[   11.235465][  T235]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.235644][  T235]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.235839][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.236019][  T235]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.236198][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.236378][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.236598][  T235] RIP: 0033:0x7fdbee9b5bcb
[   11.236794][  T235] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.237304][  T235] RSP: 002b:00007ffd8d115948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   11.237557][  T235] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdbee9b5bcb
[   11.237811][  T235] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.238052][  T235] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.238296][  T235] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd8d117b70
[   11.238545][  T235] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd8d11887f
| [   11.269187][  T236] ------------[ cut here ]------------
| [   11.269334][  T236] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/236
| [   11.269564][  T236] Modules linked in: ipvtap ipvlan
| [   11.270104][  T236] Tainted: [W]=WARN
[   11.270206][  T236] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.270382][  T236] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.270557][  T236] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.271024][  T236] RSP: 0018:ffa00000006e7020 EFLAGS: 00010286
[   11.271192][  T236] RAX: 00000000ffffffa6 RBX: ff1100000d6b71c0 RCX: 1ff40000000dcdca
[   11.271385][  T236] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d6b727c
[   11.271586][  T236] RBP: ff1100000e489000 R08: 1fe2200001ad6e51 R09: ff1100000f745158
[   11.271783][  T236] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   11.271975][  T236] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   11.272175][  T236] FS:  00007f61de067840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   11.272401][  T236] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.272566][  T236] CR2: 000000002c9e7988 CR3: 0000000004f64002 CR4: 0000000000771ef0
[   11.273579][  T236] PKRU: 55555554
[   11.273685][  T236] Call Trace:
[   11.273784][  T236]  <TASK>
[   11.273851][  T236]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.273984][  T236]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.274082][  T236]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   11.274211][  T236]  __dev_notify_flags (net/core/dev.c:9787)
[   11.274346][  T236]  ? netif_change_name (net/core/dev.c:1495)
[   11.274481][  T236]  ? __dev_change_flags (net/core/dev.c:9752)
[   11.274613][  T236]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   11.274751][  T236]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.274881][  T236]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   11.275013][  T236]  netif_change_flags (net/core/dev.c:9820)
[   11.275141][  T236]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   11.275271][  T236]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   11.275403][  T236]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   11.275538][  T236]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   11.275706][  T236]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.275836][  T236]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.275964][  T236]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.276092][  T236]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.276223][  T236]  ? __kernel_text_address (kernel/extable.c:79)
[   11.276354][  T236]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.276490][  T236]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.276619][  T236]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   11.276774][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.276904][  T236]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   11.277033][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.277161][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.277289][  T236]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   11.277420][  T236]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   11.277556][  T236]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   11.277691][  T236]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   11.277822][  T236]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   11.277953][  T236]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   11.278085][  T236]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.278215][  T236]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.278346][  T236]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.278483][  T236]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.278614][  T236]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.278754][  T236]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.278891][  T236]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.279020][  T236]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.279148][  T236]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.279277][  T236]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.279408][  T236]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.279549][  T236]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.279685][  T236]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.279813][  T236]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.279943][  T236]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.280075][  T236]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.280203][  T236]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.280332][  T236]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.280471][  T236]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.280607][  T236]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.280747][  T236]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.280877][  T236]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.281010][  T236]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.281142][  T236]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.281272][  T236]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.281403][  T236]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.281539][  T236]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.281675][  T236]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.281808][  T236]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.281940][  T236]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.282069][  T236]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.282230][  T236]  ? move_addr_to_kernel (net/socket.c:258)
[   11.282360][  T236]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.282500][  T236]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.282633][  T236]  ___sys_sendmsg (net/socket.c:2752)
[   11.282769][  T236]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   11.282931][  T236]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.283074][  T236]  __sys_sendmsg (net/socket.c:2784)
[   11.283206][  T236]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.283334][  T236]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   11.283505][  T236]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.283636][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.283771][  T236]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.283901][  T236]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.284031][  T236]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.284162][  T236]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.284322][  T236] RIP: 0033:0x7f61de2a108e
[   11.284465][  T236] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.284966][  T236] RSP: 002b:00007ffc8a5a0b10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.285162][  T236] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f61de2a108e
[   11.285357][  T236] RDX: 0000000000000000 RSI: 00007ffc8a5a0bc0 RDI: 0000000000000005
[   11.285561][  T236] RBP: 00007ffc8a5a0b20 R08: 0000000000000000 R09: 0000000000000000
[   11.285759][  T236] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac2
[   11.285953][  T236] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc8a5a1290
| [   11.417383][  T239] ------------[ cut here ]------------
| [   11.417592][  T239] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/239
| [   11.417859][  T239] Modules linked in: ipvtap ipvlan
| [   11.418308][  T239] Tainted: [W]=WARN
[   11.418419][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.418604][  T239] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.418796][  T239] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.419307][  T239] RSP: 0018:ffa00000007170b0 EFLAGS: 00010286
[   11.419494][  T239] RAX: 00000000ffffffa6 RBX: ff11000009490e40 RCX: 1ff40000000e2ddc
[   11.419714][  T239] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009490efc
[   11.419930][  T239] RBP: ff11000007edc000 R08: 1fe22000012921e1 R09: ff1100000a272e80
[   11.420145][  T239] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   11.420364][  T239] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   11.420586][  T239] FS:  00007f32ce4db840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   11.420846][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.421027][  T239] CR2: 0000000000445730 CR3: 000000000f654002 CR4: 0000000000771ef0
[   11.421243][  T239] PKRU: 55555554
[   11.421352][  T239] Call Trace:
[   11.421469][  T239]  <TASK>
[   11.421544][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.421693][  T239]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   11.421837][  T239]  notifier_call_chain (kernel/notifier.c:85)
[   11.421982][  T239]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   11.422125][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.422268][  T239]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   11.422411][  T239]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   11.422526][  T239]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   11.422712][  T239]  ? ida_destroy (lib/idr.c:623)
[   11.422858][  T239]  netdev_upper_dev_link (net/core/dev.c:8972)
[   11.423001][  T239]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   11.423145][  T239] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   11.423291][  T239]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   11.423435][  T239]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   11.423587][  T239] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   11.424304][  T239]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   11.424459][  T239]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.424608][  T239]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.424816][  T239]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.424965][  T239]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.425112][  T239]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.425260][  T239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.425403][  T239]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.425554][  T239]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.425781][  T239]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.425923][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.426070][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.426215][  T239]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.426359][  T239]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.426510][  T239]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.426738][  T239]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.426881][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.427024][  T239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.427168][  T239]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.427312][  T239]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.427459][  T239]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.427604][  T239]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.427836][  T239]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.427981][  T239]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.428125][  T239]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.428269][  T239]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.428414][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.428563][  T239]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.428814][  T239]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.428963][  T239]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.429109][  T239]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.429253][  T239]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.429394][  T239]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.429574][  T239]  ? move_addr_to_kernel (net/socket.c:258)
[   11.429789][  T239]  ___sys_sendmsg (net/socket.c:2752)
[   11.429931][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.430074][  T239]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.430225][  T239]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   11.430371][  T239]  __sys_sendmsg (net/socket.c:2784)
[   11.430520][  T239]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.430727][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.430871][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.431014][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.431156][  T239]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.431298][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.431440][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.431621][  T239] RIP: 0033:0x7f32ce71508e
[   11.431833][  T239] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.432338][  T239] RSP: 002b:00007fff5b5331c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.432557][  T239] RAX: ffffffffffffffda RBX: 00007fff5b533978 RCX: 00007f32ce71508e
[   11.432778][  T239] RDX: 0000000000000000 RSI: 00007fff5b533270 RDI: 0000000000000005
[   11.432990][  T239] RBP: 00007fff5b5331d0 R08: 0000000000000000 R09: 0000000000000000
[   11.433204][  T239] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac2
[   11.433417][  T239] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff5b533930
| [   11.435094][  T239] ------------[ cut here ]------------
| [   11.435228][  T239] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/239
| [   11.435463][  T239] Modules linked in: ipvtap ipvlan
| [   11.435884][  T239] Tainted: [W]=WARN
[   11.435989][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.436160][  T239] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.436335][  T239] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.437156][  T239] RSP: 0018:ffa00000007171b0 EFLAGS: 00010286
[   11.437329][  T239] RAX: 00000000ffffffa6 RBX: ff11000009490580 RCX: 1ff40000000e2dfc
[   11.437533][  T239] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000949063c
[   11.437793][  T239] RBP: ff1100000e8ca000 R08: 1fe22000012920c9 R09: ff1100000a272e80
[   11.437996][  T239] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   11.438199][  T239] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   11.438402][  T239] FS:  00007f32ce4db840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   11.438642][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.438854][  T239] CR2: 0000000000445730 CR3: 000000000f654002 CR4: 0000000000771ef0
[   11.439060][  T239] PKRU: 55555554
[   11.439163][  T239] Call Trace:
[   11.439269][  T239]  <TASK>
[   11.439341][  T239]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.439483][  T239]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.439587][  T239]  ? ida_destroy (lib/idr.c:623)
[   11.439730][  T239]  __dev_notify_flags (net/core/dev.c:9787)
[   11.439868][  T239]  ? netif_change_name (net/core/dev.c:1495)
[   11.440005][  T239]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   11.440143][  T239]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   11.440316][  T239]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   11.440490][  T239]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   11.440628][  T239]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   11.440770][  T239]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.440908][  T239]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   11.441045][  T239]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   11.441185][  T239]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.441321][  T239]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.441461][  T239]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.441606][  T239]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.441752][  T239]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.441891][  T239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.442027][  T239]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.442163][  T239]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.442301][  T239]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.442438][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.442583][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.442725][  T239]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.442861][  T239]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.442996][  T239]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.443133][  T239]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.443269][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.443407][  T239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.443545][  T239]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.443687][  T239]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.443823][  T239]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.443959][  T239]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.444098][  T239]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.444233][  T239]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.444373][  T239]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.444514][  T239]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.444657][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.444796][  T239]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.444935][  T239]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.445073][  T239]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.445212][  T239]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.445349][  T239]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.445490][  T239]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.445662][  T239]  ? move_addr_to_kernel (net/socket.c:258)
[   11.445803][  T239]  ___sys_sendmsg (net/socket.c:2752)
[   11.445939][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.446076][  T239]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.446222][  T239]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   11.446361][  T239]  __sys_sendmsg (net/socket.c:2784)
[   11.446499][  T239]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.446639][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.446780][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.446919][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.447055][  T239]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.447191][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.447329][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.447501][  T239] RIP: 0033:0x7f32ce71508e
[   11.447642][  T239] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.448129][  T239] RSP: 002b:00007fff5b5331c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.448332][  T239] RAX: ffffffffffffffda RBX: 00007fff5b533978 RCX: 00007f32ce71508e
[   11.448542][  T239] RDX: 0000000000000000 RSI: 00007fff5b533270 RDI: 0000000000000005
[   11.448750][  T239] RBP: 00007fff5b5331d0 R08: 0000000000000000 R09: 0000000000000000
[   11.448952][  T239] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac2
[   11.449156][  T239] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff5b533930
| [   11.497127][  T241] ------------[ cut here ]------------
| [   11.497329][  T241] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/241
| [   11.497621][  T241] Modules linked in: ipvtap ipvlan
| [   11.498715][  T241] Tainted: [W]=WARN
[   11.498864][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.499077][  T241] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.499299][  T241] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.499840][  T241] RSP: 0018:ffa0000000747a80 EFLAGS: 00010286
[   11.500054][  T241] RAX: 00000000ffffffa6 RBX: ff1100000cab2040 RCX: 1ff40000000e8f16
[   11.500297][  T241] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cab20fc
[   11.500549][  T241] RBP: ff1100000fbd4000 R08: 1fe2200001956421 R09: ff1100000f99d180
[   11.500807][  T241] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.501049][  T241] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fbd4000
[   11.501295][  T241] FS:  00007ff03b05a840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   11.501584][  T241] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.501811][  T241] CR2: 00007ff03b25bc20 CR3: 000000000e6af004 CR4: 0000000000771ef0
[   11.502061][  T241] PKRU: 55555554
[   11.502208][  T241] Call Trace:
[   11.502354][  T241]  <TASK>
[   11.502477][  T241]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.502671][  T241]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.502853][  T241]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.503002][  T241]  register_netdevice (net/core/dev.c:11488)
[   11.503187][  T241]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.503400][  T241]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.503591][  T241]  register_netdev (net/core/dev.c:11552)
[   11.503788][  T241]  loopback_net_init (drivers/net/loopback.c:218)
[   11.503968][  T241]  ops_init (net/core/net_namespace.c:137)
[   11.504118][  T241]  setup_net (net/core/net_namespace.c:446)
[   11.504266][  T241]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.504449][  T241]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.504637][  T241]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.504832][  T241]  copy_net_ns (net/core/net_namespace.c:579)
[   11.505016][  T241]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.505199][  T241]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.505380][  T241]  ksys_unshare (kernel/fork.c:3243)
[   11.505573][  T241]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.505768][  T241]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.505949][  T241]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.506132][  T241]  ? __ia32_sys_open (fs/open.c:1374)
[   11.506313][  T241]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.506501][  T241]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.506695][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.506881][  T241]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.507060][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.507244][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.507464][  T241] RIP: 0033:0x7ff03b31cbcb
[   11.507663][  T241] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.508179][  T241] RSP: 002b:00007ffe9c766208 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   11.508428][  T241] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff03b31cbcb
[   11.508693][  T241] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.508934][  T241] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.509180][  T241] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe9c768430
[   11.509425][  T241] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9c76887f
| [   11.513757][  T241] ------------[ cut here ]------------
| [   11.513945][  T241] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/241
| [   11.514222][  T241] Modules linked in: ipvtap ipvlan
| [   11.514740][  T241] Tainted: [W]=WARN
[   11.514886][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.515101][  T241] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.515319][  T241] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.515850][  T241] RSP: 0018:ffa0000000747918 EFLAGS: 00010286
[   11.516063][  T241] RAX: 00000000ffffffa6 RBX: ff11000009491c40 RCX: 1ff40000000e8ee9
[   11.516308][  T241] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009491cfc
[   11.516559][  T241] RBP: ff1100000fb79000 R08: 1fe22000012923a1 R09: ff1100000f99d180
[   11.516815][  T241] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.517060][  T241] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fb79000
[   11.517307][  T241] FS:  00007ff03b05a840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   11.517592][  T241] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.517816][  T241] CR2: 00007ff03b25bc20 CR3: 000000000e6af004 CR4: 0000000000771ef0
[   11.518065][  T241] PKRU: 55555554
[   11.518210][  T241] Call Trace:
[   11.518359][  T241]  <TASK>
[   11.518480][  T241]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.518674][  T241]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.518854][  T241]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.519003][  T241]  register_netdevice (net/core/dev.c:11488)
[   11.519189][  T241]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.519400][  T241]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.519593][  T241]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   11.519788][  T241]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   11.519967][  T241]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   11.520149][  T241]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   11.520330][  T241]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   11.520523][  T241]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   11.520719][  T241]  ops_init (net/core/net_namespace.c:137)
[   11.520871][  T241]  setup_net (net/core/net_namespace.c:446)
[   11.521023][  T241]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.521203][  T241]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.521383][  T241]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.521572][  T241]  copy_net_ns (net/core/net_namespace.c:579)
[   11.521769][  T241]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.521952][  T241]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.522133][  T241]  ksys_unshare (kernel/fork.c:3243)
[   11.522314][  T241]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.522501][  T241]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.522695][  T241]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.522879][  T241]  ? __ia32_sys_open (fs/open.c:1374)
[   11.523059][  T241]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.523237][  T241]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.523415][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.523601][  T241]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.523796][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.523976][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.524188][  T241] RIP: 0033:0x7ff03b31cbcb
[   11.524372][  T241] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.524906][  T241] RSP: 002b:00007ffe9c766208 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   11.525154][  T241] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff03b31cbcb
[   11.525397][  T241] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.525648][  T241] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.525907][  T241] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe9c768430
[   11.526156][  T241] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9c76887f
| [   11.538037][  T241] ------------[ cut here ]------------
| [   11.538242][  T241] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/241
| [   11.538530][  T241] Modules linked in: ipvtap ipvlan
| [   11.539061][  T241] Tainted: [W]=WARN
[   11.539211][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.539428][  T241] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.539670][  T241] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.540194][  T241] RSP: 0018:ffa00000007478f8 EFLAGS: 00010286
[   11.540410][  T241] RAX: 00000000ffffffa6 RBX: ff110000096451c0 RCX: 1ff40000000e8ee5
[   11.540679][  T241] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000964527c
[   11.540927][  T241] RBP: ff1100000fad9000 R08: 1fe22000012c8a51 R09: ff1100000f99d180
[   11.541172][  T241] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.541418][  T241] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fad9000
[   11.541685][  T241] FS:  00007ff03b05a840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   11.541968][  T241] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.542183][  T241] CR2: 00007ff03b25bc20 CR3: 000000000e6af004 CR4: 0000000000771ef0
[   11.542431][  T241] PKRU: 55555554
[   11.542585][  T241] Call Trace:
[   11.542745][  T241]  <TASK>
[   11.542863][  T241]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.543044][  T241]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.543228][  T241]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.543379][  T241]  register_netdevice (net/core/dev.c:11488)
[   11.543572][  T241]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.543799][  T241]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.543982][  T241]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   11.544164][  T241]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   11.544346][  T241]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   11.544540][  T241]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   11.544735][  T241]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   11.544917][  T241]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   11.545099][  T241]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.545284][  T241]  vti_init_net (net/ipv4/ip_vti.c:517)
[   11.545472][  T241]  ops_init (net/core/net_namespace.c:137)
[   11.545624][  T241]  setup_net (net/core/net_namespace.c:446)
[   11.545786][  T241]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.545968][  T241]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.546151][  T241]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.546336][  T241]  copy_net_ns (net/core/net_namespace.c:579)
[   11.546528][  T241]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.546726][  T241]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.546908][  T241]  ksys_unshare (kernel/fork.c:3243)
[   11.547089][  T241]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.547275][  T241]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.547466][  T241]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.547648][  T241]  ? __ia32_sys_open (fs/open.c:1374)
[   11.547843][  T241]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.548025][  T241]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.548206][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.548386][  T241]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.548573][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.548769][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.548983][  T241] RIP: 0033:0x7ff03b31cbcb
[   11.549169][  T241] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.549703][  T241] RSP: 002b:00007ffe9c766208 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   11.549956][  T241] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff03b31cbcb
[   11.550201][  T241] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.550446][  T241] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.550713][  T241] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe9c768430
[   11.550961][  T241] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9c76887f
| [   11.555605][  T241] ------------[ cut here ]------------
| [   11.555797][  T241] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/241
| [   11.556073][  T241] Modules linked in: ipvtap ipvlan
| [   11.556578][  T241] Tainted: [W]=WARN
[   11.556737][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.556949][  T241] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.557169][  T241] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.557702][  T241] RSP: 0018:ffa0000000747a78 EFLAGS: 00010286
[   11.557919][  T241] RAX: 00000000ffffffa6 RBX: ff1100000d6dd540 RCX: 1ff40000000e8f15
[   11.558162][  T241] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d6dd5fc
[   11.558406][  T241] RBP: ff110000024e4000 R08: 1fe2200001adbac1 R09: ff1100000f99d180
[   11.558670][  T241] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.558921][  T241] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000024e4000
[   11.559168][  T241] FS:  00007ff03b05a840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   11.559448][  T241] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.559683][  T241] CR2: 00007ff03b25bc20 CR3: 000000000e6af004 CR4: 0000000000771ef0
[   11.559932][  T241] PKRU: 55555554
[   11.560078][  T241] Call Trace:
[   11.560225][  T241]  <TASK>
[   11.560340][  T241]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.560532][  T241]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.560727][  T241]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.560876][  T241]  register_netdevice (net/core/dev.c:11488)
[   11.561058][  T241]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.561272][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.561465][  T241]  register_netdev (net/core/dev.c:11552)
[   11.561646][  T241]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   11.561841][  T241]  ops_init (net/core/net_namespace.c:137)
[   11.561991][  T241]  setup_net (net/core/net_namespace.c:446)
[   11.562138][  T241]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.562316][  T241]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.562505][  T241]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.562704][  T241]  copy_net_ns (net/core/net_namespace.c:579)
[   11.562887][  T241]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.563070][  T241]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.563251][  T241]  ksys_unshare (kernel/fork.c:3243)
[   11.563432][  T241]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.563620][  T241]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.563817][  T241]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.563997][  T241]  ? __ia32_sys_open (fs/open.c:1374)
[   11.564180][  T241]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.564360][  T241]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.564549][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.564738][  T241]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.564918][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.565099][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.565314][  T241] RIP: 0033:0x7ff03b31cbcb
[   11.565504][  T241] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.566033][  T241] RSP: 002b:00007ffe9c766208 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   11.566280][  T241] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff03b31cbcb
[   11.566536][  T241] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.566794][  T241] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.567036][  T241] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe9c768430
[   11.567282][  T241] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9c76887f
| [   11.572796][  T241] ------------[ cut here ]------------
| [   11.572979][  T241] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/241
| [   11.573258][  T241] Modules linked in: ipvtap ipvlan
| [   11.573781][  T241] Tainted: [W]=WARN
[   11.573927][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.574141][  T241] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.574371][  T241] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.574912][  T241] RSP: 0018:ffa0000000747a68 EFLAGS: 00010286
[   11.575128][  T241] RAX: 00000000ffffffa6 RBX: ff11000009491540 RCX: 1ff40000000e8f13
[   11.575375][  T241] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000094915fc
[   11.575633][  T241] RBP: ff1100000f01c000 R08: 1fe22000012922c1 R09: ff1100000f99d180
[   11.575955][  T241] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.576254][  T241] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f01c000
[   11.576568][  T241] FS:  00007ff03b05a840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   11.576917][  T241] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.577184][  T241] CR2: 00007ff03b25bc20 CR3: 000000000e6af004 CR4: 0000000000771ef0
[   11.577492][  T241] PKRU: 55555554
[   11.577704][  T241] Call Trace:
[   11.577904][  T241]  <TASK>
[   11.578073][  T241]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.578310][  T241]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.578555][  T241]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.578774][  T241]  register_netdevice (net/core/dev.c:11488)
[   11.579009][  T241]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.579276][  T241]  register_netdev (net/core/dev.c:11552)
[   11.579517][  T241]  sit_init_net (net/ipv6/sit.c:1860)
[   11.579760][  T241]  ops_init (net/core/net_namespace.c:137)
[   11.579963][  T241]  setup_net (net/core/net_namespace.c:446)
[   11.580168][  T241]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.580401][  T241]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.580647][  T241]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.580946][  T241]  copy_net_ns (net/core/net_namespace.c:579)
[   11.581179][  T241]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.581414][  T241]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.581673][  T241]  ksys_unshare (kernel/fork.c:3243)
[   11.581914][  T241]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.582147][  T241]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.582380][  T241]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.582622][  T241]  ? __ia32_sys_open (fs/open.c:1374)
[   11.582871][  T241]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.583105][  T241]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.583336][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.583578][  T241]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.583804][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.583985][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.584195][  T241] RIP: 0033:0x7ff03b31cbcb
[   11.584379][  T241] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.584919][  T241] RSP: 002b:00007ffe9c766208 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   11.585165][  T241] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff03b31cbcb
[   11.585409][  T241] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.585674][  T241] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.585920][  T241] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe9c768430
[   11.586164][  T241] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9c76887f
| [   11.590943][  T241] ------------[ cut here ]------------
| [   11.591132][  T241] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/241
| [   11.591409][  T241] Modules linked in: ipvtap ipvlan
| [   11.591930][  T241] Tainted: [W]=WARN
[   11.592082][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.592294][  T241] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.592524][  T241] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.593052][  T241] RSP: 0018:ffa0000000747a78 EFLAGS: 00010286
[   11.593273][  T241] RAX: 00000000ffffffa6 RBX: ff11000009645380 RCX: 1ff40000000e8f15
[   11.593527][  T241] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000964543c
[   11.594297][  T241] RBP: ff1100000fa71000 R08: 1fe22000012c8a89 R09: ff1100000f99d180
[   11.594606][  T241] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.594923][  T241] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fa71000
[   11.595235][  T241] FS:  00007ff03b05a840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   11.595576][  T241] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.595856][  T241] CR2: 00007ff03b25bc20 CR3: 000000000e6af004 CR4: 0000000000771ef0
[   11.596161][  T241] PKRU: 55555554
[   11.596364][  T241] Call Trace:
[   11.596574][  T241]  <TASK>
[   11.596757][  T241]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.596993][  T241]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.597229][  T241]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.597431][  T241]  register_netdevice (net/core/dev.c:11488)
[   11.597691][  T241]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.597959][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.598200][  T241]  register_netdev (net/core/dev.c:11552)
[   11.598435][  T241]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   11.598694][  T241]  ops_init (net/core/net_namespace.c:137)
[   11.598899][  T241]  setup_net (net/core/net_namespace.c:446)
[   11.599102][  T241]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.599337][  T241]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.599585][  T241]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.599838][  T241]  copy_net_ns (net/core/net_namespace.c:579)
[   11.600020][  T241]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.600203][  T241]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.600385][  T241]  ksys_unshare (kernel/fork.c:3243)
[   11.600570][  T241]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.600768][  T241]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.600950][  T241]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.601133][  T241]  ? __ia32_sys_open (fs/open.c:1374)
[   11.601317][  T241]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.601504][  T241]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.601698][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.601879][  T241]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.602061][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.602242][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.602454][  T241] RIP: 0033:0x7ff03b31cbcb
[   11.602666][  T241] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.603186][  T241] RSP: 002b:00007ffe9c766208 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   11.603433][  T241] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff03b31cbcb
[   11.603703][  T241] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.603948][  T241] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.604197][  T241] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe9c768430
[   11.604443][  T241] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9c76887f
| [   11.640297][  T242] ------------[ cut here ]------------
| [   11.640462][  T242] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/242
| [   11.640706][  T242] Modules linked in: ipvtap ipvlan
| [   11.641123][  T242] Tainted: [W]=WARN
[   11.641223][  T242] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.641391][  T242] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.641572][  T242] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.642057][  T242] RSP: 0018:ffa0000000787020 EFLAGS: 00010286
[   11.642227][  T242] RAX: 00000000ffffffa6 RBX: ff1100000c319700 RCX: 1ff40000000f0dca
[   11.642427][  T242] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3197bc
[   11.642633][  T242] RBP: ff1100000fbd4000 R08: 1fe22000018632f9 R09: ff1100000f995158
[   11.642839][  T242] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   11.643039][  T242] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   11.643242][  T242] FS:  00007f0963493840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   11.643481][  T242] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.643656][  T242] CR2: 000000000ab9a988 CR3: 000000000f06f005 CR4: 0000000000771ef0
[   11.643856][  T242] PKRU: 55555554
[   11.643956][  T242] Call Trace:
[   11.644056][  T242]  <TASK>
[   11.644126][  T242]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.644262][  T242]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.644364][  T242]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   11.644503][  T242]  __dev_notify_flags (net/core/dev.c:9787)
[   11.644639][  T242]  ? netif_change_name (net/core/dev.c:1495)
[   11.644778][  T242]  ? __dev_change_flags (net/core/dev.c:9752)
[   11.644911][  T242]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   11.645046][  T242]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.645180][  T242]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   11.645316][  T242]  netif_change_flags (net/core/dev.c:9820)
[   11.645450][  T242]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   11.645591][  T242]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   11.645733][  T242]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   11.645869][  T242]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   11.646035][  T242]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.646168][  T242]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.646301][  T242]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.646435][  T242]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.646571][  T242]  ? __kernel_text_address (kernel/extable.c:79)
[   11.646712][  T242]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.646848][  T242]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.646982][  T242]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   11.647117][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.647250][  T242]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   11.647386][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.647526][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.647665][  T242]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   11.647801][  T242]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   11.647934][  T242]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   11.648069][  T242]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   11.648206][  T242]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   11.648343][  T242]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   11.648487][  T242]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.648625][  T242]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.648763][  T242]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.648899][  T242]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.649033][  T242]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.649168][  T242]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.649305][  T242]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.649438][  T242]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.649576][  T242]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.649717][  T242]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.649852][  T242]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.649989][  T242]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.650122][  T242]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.650255][  T242]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.650388][  T242]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.650528][  T242]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.650665][  T242]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.650801][  T242]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.650935][  T242]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.651069][  T242]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.651208][  T242]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.651342][  T242]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.651483][  T242]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.651619][  T242]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.651759][  T242]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.651893][  T242]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.652029][  T242]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.652163][  T242]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.652298][  T242]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.652432][  T242]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.652569][  T242]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.652742][  T242]  ? move_addr_to_kernel (net/socket.c:258)
[   11.652876][  T242]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.653011][  T242]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.653144][  T242]  ___sys_sendmsg (net/socket.c:2752)
[   11.653277][  T242]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   11.653443][  T242]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.653594][  T242]  __sys_sendmsg (net/socket.c:2784)
[   11.653734][  T242]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.653870][  T242]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   11.654040][  T242]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.654174][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.654308][  T242]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.654442][  T242]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.654581][  T242]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.654721][  T242]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.654887][  T242] RIP: 0033:0x7f09636cd08e
[   11.655028][  T242] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.655507][  T242] RSP: 002b:00007ffd49974d80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.655715][  T242] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f09636cd08e
[   11.655917][  T242] RDX: 0000000000000000 RSI: 00007ffd49974e30 RDI: 0000000000000005
[   11.656117][  T242] RBP: 00007ffd49974d90 R08: 0000000000000000 R09: 0000000000000000
[   11.656314][  T242] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac2
[   11.656519][  T242] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd49975500
| [   11.779583][  T245] ------------[ cut here ]------------
| [   11.779818][  T245] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/245
| [   11.780112][  T245] Modules linked in: ipvtap ipvlan
| [   11.780649][  T245] Tainted: [W]=WARN
[   11.781717][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.781971][  T245] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.782199][  T245] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.782769][  T245] RSP: 0018:ffa00000007e70b0 EFLAGS: 00010286
[   11.783000][  T245] RAX: 00000000ffffffa6 RBX: ff1100000c883a80 RCX: 1ff40000000fcddc
[   11.783259][  T245] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c883b3c
[   11.783536][  T245] RBP: ff11000007edc000 R08: 1fe2200001910769 R09: ff11000009c40b80
[   11.783807][  T245] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   11.784068][  T245] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   11.784330][  T245] FS:  00007fb5916fd840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   11.784639][  T245] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.784877][  T245] CR2: 0000000000445730 CR3: 0000000004e3f005 CR4: 0000000000771ef0
[   11.785142][  T245] PKRU: 55555554
[   11.785295][  T245] Call Trace:
[   11.785447][  T245]  <TASK>
[   11.785576][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.785774][  T245]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   11.785963][  T245]  notifier_call_chain (kernel/notifier.c:85)
[   11.786152][  T245]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   11.786339][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.786539][  T245]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   11.786737][  T245]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   11.786893][  T245]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   11.787116][  T245]  ? ida_destroy (lib/idr.c:623)
[   11.787306][  T245]  netdev_upper_dev_link (net/core/dev.c:8972)
[   11.787502][  T245]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   11.787739][  T245] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   11.787939][  T245]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   11.788130][  T245]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   11.788331][  T245] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   11.788531][  T245]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   11.788733][  T245]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.788920][  T245]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.789108][  T245]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.789305][  T245]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.789509][  T245]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.789712][  T245]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.789900][  T245]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.790089][  T245]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.790276][  T245]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.790472][  T245]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.790681][  T245]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.790869][  T245]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.791057][  T245]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.791245][  T245]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.791432][  T245]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.791632][  T245]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.791838][  T245]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.792024][  T245]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.792276][  T245]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.792525][  T245]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.792738][  T245]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.792938][  T245]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.793126][  T245]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.793383][  T245]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.793676][  T245]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.793950][  T245]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.794217][  T245]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.794468][  T245]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.794711][  T245]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.794980][  T245]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.795245][  T245]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.795520][  T245]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.795830][  T245]  ? move_addr_to_kernel (net/socket.c:258)
[   11.796088][  T245]  ___sys_sendmsg (net/socket.c:2752)
[   11.796345][  T245]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.796551][  T245]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.796768][  T245]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   11.796962][  T245]  __sys_sendmsg (net/socket.c:2784)
[   11.797154][  T245]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.797392][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.797625][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.797835][  T245]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.798025][  T245]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.798211][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.798400][  T245]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.798631][  T245] RIP: 0033:0x7fb59193708e
[   11.798838][  T245] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.799382][  T245] RSP: 002b:00007fff22620df0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.799643][  T245] RAX: ffffffffffffffda RBX: 00007fff226215a8 RCX: 00007fb59193708e
[   11.799910][  T245] RDX: 0000000000000000 RSI: 00007fff22620ea0 RDI: 0000000000000005
[   11.800169][  T245] RBP: 00007fff22620e00 R08: 0000000000000000 R09: 0000000000000000
[   11.800422][  T245] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac3
[   11.800696][  T245] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff22621560
| [   11.802820][  T245] ------------[ cut here ]------------
| [   11.802964][  T245] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/245
| [   11.803195][  T245] Modules linked in: ipvtap ipvlan
| [   11.803611][  T245] Tainted: [W]=WARN
[   11.803724][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.803891][  T245] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.804065][  T245] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.804549][  T245] RSP: 0018:ffa00000007e71b0 EFLAGS: 00010286
[   11.804726][  T245] RAX: 00000000ffffffa6 RBX: ff1100000c883c40 RCX: 1ff40000000fcdfc
[   11.804927][  T245] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c883cfc
[   11.805125][  T245] RBP: ff1100000feba000 R08: 1fe22000019107a1 R09: ff11000009c40b80
[   11.805325][  T245] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   11.805531][  T245] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   11.805738][  T245] FS:  00007fb5916fd840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   11.805974][  T245] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.806143][  T245] CR2: 00007fce701e4000 CR3: 0000000004e3f003 CR4: 0000000000771ef0
[   11.806341][  T245] PKRU: 55555554
[   11.806440][  T245] Call Trace:
[   11.806545][  T245]  <TASK>
[   11.806613][  T245]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.806754][  T245]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.806856][  T245]  ? ida_destroy (lib/idr.c:623)
[   11.806988][  T245]  __dev_notify_flags (net/core/dev.c:9787)
[   11.807122][  T245]  ? netif_change_name (net/core/dev.c:1495)
[   11.807254][  T245]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   11.807386][  T245]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   11.807558][  T245]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   11.807730][  T245]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   11.807862][  T245]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   11.807996][  T245]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.808129][  T245]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   11.808262][  T245]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   11.808397][  T245]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.808532][  T245]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.808668][  T245]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.808806][  T245]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.808942][  T245]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.809077][  T245]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.809208][  T245]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.809339][  T245]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.809477][  T245]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.809609][  T245]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.809753][  T245]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.809886][  T245]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.810017][  T245]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.810149][  T245]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.810281][  T245]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.810413][  T245]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.810587][  T245]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.810732][  T245]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.810868][  T245]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.811004][  T245]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.811140][  T245]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.811282][  T245]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.811417][  T245]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.811562][  T245]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.811702][  T245]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.811835][  T245]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.811967][  T245]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.812099][  T245]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.812235][  T245]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.812369][  T245]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.812505][  T245]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.812638][  T245]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.812806][  T245]  ? move_addr_to_kernel (net/socket.c:258)
[   11.812943][  T245]  ___sys_sendmsg (net/socket.c:2752)
[   11.813075][  T245]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.813208][  T245]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.813349][  T245]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   11.813488][  T245]  __sys_sendmsg (net/socket.c:2784)
[   11.813620][  T245]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.813762][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.813894][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.814028][  T245]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.814159][  T245]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.814291][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.814424][  T245]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.814590][  T245] RIP: 0033:0x7fb59193708e
[   11.814734][  T245] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.815205][  T245] RSP: 002b:00007fff22620df0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.815403][  T245] RAX: ffffffffffffffda RBX: 00007fff226215a8 RCX: 00007fb59193708e
[   11.815604][  T245] RDX: 0000000000000000 RSI: 00007fff22620ea0 RDI: 0000000000000005
[   11.815809][  T245] RBP: 00007fff22620e00 R08: 0000000000000000 R09: 0000000000000000
[   11.816007][  T245] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac3
[   11.816203][  T245] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff22621560
| [   11.871193][  T247] ------------[ cut here ]------------
| [   11.871371][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/247
| [   11.871622][  T247] Modules linked in: ipvtap ipvlan
| [   11.872045][  T247] Tainted: [W]=WARN
[   11.872146][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.872309][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.872484][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.872959][  T247] RSP: 0018:ffa0000000807a80 EFLAGS: 00010286
[   11.873124][  T247] RAX: 00000000ffffffa6 RBX: ff11000009491a80 RCX: 1ff4000000100f16
[   11.873318][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009491b3c
[   11.873519][  T247] RBP: ff11000005231000 R08: 1fe2200001292369 R09: ff1100000242ae80
[   11.873720][  T247] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   11.873914][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005231000
[   11.874111][  T247] FS:  00007f069a817840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   11.874343][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.874512][  T247] CR2: 00007f069aa217d0 CR3: 000000000f087006 CR4: 0000000000771ef0
[   11.874718][  T247] PKRU: 55555554
[   11.874816][  T247] Call Trace:
[   11.874913][  T247]  <TASK>
[   11.874980][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.875111][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.875243][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.875344][  T247]  register_netdevice (net/core/dev.c:11488)
[   11.875496][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.875666][  T247]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.875797][  T247]  register_netdev (net/core/dev.c:11552)
[   11.875928][  T247]  loopback_net_init (drivers/net/loopback.c:218)
[   11.876061][  T247]  ops_init (net/core/net_namespace.c:137)
[   11.876162][  T247]  setup_net (net/core/net_namespace.c:446)
[   11.876261][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.876392][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.876528][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.876721][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   11.876852][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.876987][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.877117][  T247]  ksys_unshare (kernel/fork.c:3243)
[   11.877246][  T247]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.877380][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.877519][  T247]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.877713][  T247]  ? __ia32_sys_open (fs/open.c:1374)
[   11.877918][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.878054][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.878184][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.878313][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.878443][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.878579][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.878798][  T247] RIP: 0033:0x7f069aad9bcb
[   11.878935][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.879413][  T247] RSP: 002b:00007ffe5cb07358 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   11.879623][  T247] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f069aad9bcb
[   11.879901][  T247] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.880104][  T247] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.880302][  T247] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe5cb09580
[   11.880501][  T247] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5cb0a87f
| [   11.885064][  T247] ------------[ cut here ]------------
| [   11.885203][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/247
| [   11.885432][  T247] Modules linked in: ipvtap ipvlan
| [   11.885838][  T247] Tainted: [W]=WARN
[   11.885938][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.886100][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.886271][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.886743][  T247] RSP: 0018:ffa0000000807918 EFLAGS: 00010286
[   11.886907][  T247] RAX: 00000000ffffffa6 RBX: ff110000104d5380 RCX: 1ff4000000100ee9
[   11.887101][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104d543c
[   11.887296][  T247] RBP: ff11000007c9c000 R08: 1fe220000209aa89 R09: ff1100000242ae80
[   11.887495][  T247] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   11.887693][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007c9c000
[   11.887890][  T247] FS:  00007f069a817840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   11.888119][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.888281][  T247] CR2: 00007f069aa217d0 CR3: 000000000f087006 CR4: 0000000000771ef0
[   11.888483][  T247] PKRU: 55555554
[   11.888580][  T247] Call Trace:
[   11.888684][  T247]  <TASK>
[   11.888753][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.888884][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.889014][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.889114][  T247]  register_netdevice (net/core/dev.c:11488)
[   11.889246][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.889410][  T247]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.889547][  T247]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   11.889684][  T247]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   11.889814][  T247]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   11.889947][  T247]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   11.890078][  T247]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   11.890211][  T247]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   11.890345][  T247]  ops_init (net/core/net_namespace.c:137)
[   11.890446][  T247]  setup_net (net/core/net_namespace.c:446)
[   11.890550][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.890688][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.890820][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.890953][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   11.891088][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.891222][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.891352][  T247]  ksys_unshare (kernel/fork.c:3243)
[   11.891490][  T247]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.891623][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.892265][  T247]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.892399][  T247]  ? __ia32_sys_open (fs/open.c:1374)
[   11.892535][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.892718][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.892849][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.892979][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.893113][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.893245][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.893407][  T247] RIP: 0033:0x7f069aad9bcb
[   11.893548][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.894073][  T247] RSP: 002b:00007ffe5cb07358 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   11.894271][  T247] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f069aad9bcb
[   11.894470][  T247] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.894720][  T247] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.894916][  T247] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe5cb09580
[   11.895115][  T247] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5cb0a87f
| [   11.899573][  T247] ------------[ cut here ]------------
| [   11.899730][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/247
| [   11.899967][  T247] Modules linked in: ipvtap ipvlan
| [   11.900368][  T247] Tainted: [W]=WARN
[   11.900472][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.900662][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.900841][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.901307][  T247] RSP: 0018:ffa00000008078f8 EFLAGS: 00010286
[   11.901480][  T247] RAX: 00000000ffffffa6 RBX: ff1100001078ce40 RCX: 1ff4000000100ee5
[   11.901686][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001078cefc
[   11.901881][  T247] RBP: ff11000010534000 R08: 1fe22000020f19e1 R09: ff1100000242ae80
[   11.902075][  T247] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   11.902271][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010534000
[   11.902473][  T247] FS:  00007f069a817840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   11.902715][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.902879][  T247] CR2: 00005559e9c93d5c CR3: 000000000f087002 CR4: 0000000000771ef0
[   11.903077][  T247] PKRU: 55555554
[   11.903177][  T247] Call Trace:
[   11.903274][  T247]  <TASK>
[   11.903342][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.903485][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.903618][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.903723][  T247]  register_netdevice (net/core/dev.c:11488)
[   11.903856][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.904019][  T247]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.904153][  T247]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   11.904291][  T247]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   11.904422][  T247]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   11.904558][  T247]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   11.904696][  T247]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   11.904827][  T247]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   11.904958][  T247]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.905091][  T247]  vti_init_net (net/ipv4/ip_vti.c:517)
[   11.905230][  T247]  ops_init (net/core/net_namespace.c:137)
[   11.905330][  T247]  setup_net (net/core/net_namespace.c:446)
[   11.905429][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.905565][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.905699][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.905831][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   11.905962][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.906102][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.906233][  T247]  ksys_unshare (kernel/fork.c:3243)
[   11.906363][  T247]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.906498][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.906628][  T247]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.906762][  T247]  ? __ia32_sys_open (fs/open.c:1374)
[   11.906900][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.907032][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.907160][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.907290][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.907419][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.907555][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.907723][  T247] RIP: 0033:0x7f069aad9bcb
[   11.907866][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.908327][  T247] RSP: 002b:00007ffe5cb07358 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   11.908527][  T247] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f069aad9bcb
[   11.908738][  T247] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.908933][  T247] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.909137][  T247] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe5cb09580
[   11.909331][  T247] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5cb0a87f
| [   11.913424][  T247] ------------[ cut here ]------------
| [   11.913563][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/247
| [   11.913797][  T247] Modules linked in: ipvtap ipvlan
| [   11.914191][  T247] Tainted: [W]=WARN
[   11.914296][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.914456][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.914632][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.915095][  T247] RSP: 0018:ffa0000000807a78 EFLAGS: 00010286
[   11.915266][  T247] RAX: 00000000ffffffa6 RBX: ff1100001078c040 RCX: 1ff4000000100f15
[   11.915461][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001078c0fc
[   11.915661][  T247] RBP: ff1100000fe01000 R08: 1fe22000020f1821 R09: ff1100000242ae80
[   11.915853][  T247] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   11.916050][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fe01000
[   11.916244][  T247] FS:  00007f069a817840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   11.916475][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.916638][  T247] CR2: 00005559e9c93d5c CR3: 000000000f087002 CR4: 0000000000771ef0
[   11.916838][  T247] PKRU: 55555554
[   11.916941][  T247] Call Trace:
[   11.917039][  T247]  <TASK>
[   11.917105][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.917234][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.917363][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.917466][  T247]  register_netdevice (net/core/dev.c:11488)
[   11.917598][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.917767][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.917899][  T247]  register_netdev (net/core/dev.c:11552)
[   11.918027][  T247]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   11.918158][  T247]  ops_init (net/core/net_namespace.c:137)
[   11.918257][  T247]  setup_net (net/core/net_namespace.c:446)
[   11.918356][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.918489][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.918626][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.918764][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   11.918894][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.919025][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.919153][  T247]  ksys_unshare (kernel/fork.c:3243)
[   11.919282][  T247]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.919410][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.919592][  T247]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.919725][  T247]  ? __ia32_sys_open (fs/open.c:1374)
[   11.919855][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.919983][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.920110][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.920238][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.920373][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.920505][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.920666][  T247] RIP: 0033:0x7f069aad9bcb
[   11.920800][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.921263][  T247] RSP: 002b:00007ffe5cb07358 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   11.921463][  T247] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f069aad9bcb
[   11.921660][  T247] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.921852][  T247] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.922051][  T247] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe5cb09580
[   11.922242][  T247] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5cb0a87f
| [   11.931646][  T247] ------------[ cut here ]------------
| [   11.931789][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/247
| [   11.932015][  T247] Modules linked in: ipvtap ipvlan
| [   11.932413][  T247] Tainted: [W]=WARN
[   11.932520][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.932693][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.932864][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.933332][  T247] RSP: 0018:ffa0000000807a68 EFLAGS: 00010286
[   11.933502][  T247] RAX: 00000000ffffffa6 RBX: ff110000107d51c0 RCX: 1ff4000000100f13
[   11.933700][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000107d527c
[   11.933894][  T247] RBP: ff1100000fb9c000 R08: 1fe22000020faa51 R09: ff1100000242ae80
[   11.934093][  T247] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   11.934289][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fb9c000
[   11.934489][  T247] FS:  00007f069a817840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   11.934721][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.934899][  T247] CR2: 00005559e9c93d5c CR3: 000000000f087002 CR4: 0000000000771ef0
[   11.935093][  T247] PKRU: 55555554
[   11.935190][  T247] Call Trace:
[   11.935288][  T247]  <TASK>
[   11.935354][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.935488][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.935617][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.935721][  T247]  register_netdevice (net/core/dev.c:11488)
[   11.935852][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.936015][  T247]  register_netdev (net/core/dev.c:11552)
[   11.936145][  T247]  sit_init_net (net/ipv6/sit.c:1860)
[   11.936274][  T247]  ops_init (net/core/net_namespace.c:137)
[   11.936373][  T247]  setup_net (net/core/net_namespace.c:446)
[   11.936473][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.936609][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.936744][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.936875][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   11.937006][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.937139][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.937275][  T247]  ksys_unshare (kernel/fork.c:3243)
[   11.937404][  T247]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.937554][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.937689][  T247]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.937819][  T247]  ? __ia32_sys_open (fs/open.c:1374)
[   11.937952][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.938081][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.938216][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.938349][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.938488][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.938623][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.938794][  T247] RIP: 0033:0x7f069aad9bcb
[   11.938934][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.939406][  T247] RSP: 002b:00007ffe5cb07358 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   11.939607][  T247] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f069aad9bcb
[   11.939804][  T247] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.939999][  T247] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.940192][  T247] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe5cb09580
[   11.940385][  T247] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5cb0a87f
| [   11.946137][  T247] ------------[ cut here ]------------
| [   11.946287][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/247
| [   11.946518][  T247] Modules linked in: ipvtap ipvlan
| [   11.946937][  T247] Tainted: [W]=WARN
[   11.947036][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.947198][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.947368][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.947844][  T247] RSP: 0018:ffa0000000807a78 EFLAGS: 00010286
[   11.948007][  T247] RAX: 00000000ffffffa6 RBX: ff1100000c882580 RCX: 1ff4000000100f15
[   11.948201][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c88263c
[   11.948394][  T247] RBP: ff1100000fb91000 R08: 1fe22000019104c9 R09: ff1100000242ae80
[   11.948591][  T247] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   11.948796][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fb91000
[   11.949023][  T247] FS:  00007f069a817840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   11.949250][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.949414][  T247] CR2: 00005559e9c93d5c CR3: 000000000f087002 CR4: 0000000000771ef0
[   11.949612][  T247] PKRU: 55555554
[   11.949714][  T247] Call Trace:
[   11.949811][  T247]  <TASK>
[   11.949878][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.950010][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.950141][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.950241][  T247]  register_netdevice (net/core/dev.c:11488)
[   11.950374][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.950540][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.951180][  T247]  register_netdev (net/core/dev.c:11552)
[   11.951313][  T247]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   11.951443][  T247]  ops_init (net/core/net_namespace.c:137)
[   11.951548][  T247]  setup_net (net/core/net_namespace.c:446)
[   11.951647][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.951831][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.951961][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.952092][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   11.952222][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.952355][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.952489][  T247]  ksys_unshare (kernel/fork.c:3243)
[   11.952619][  T247]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.952814][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.952943][  T247]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   11.953074][  T247]  ? __ia32_sys_open (fs/open.c:1374)
[   11.953206][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.953337][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.953470][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.953599][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.953783][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.953913][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.954073][  T247] RIP: 0033:0x7f069aad9bcb
[   11.954209][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.954733][  T247] RSP: 002b:00007ffe5cb07358 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   11.954930][  T247] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f069aad9bcb
[   11.955124][  T247] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   11.955318][  T247] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   11.955517][  T247] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe5cb09580
[   11.955765][  T247] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5cb0a87f
| [   11.994289][  T248] ------------[ cut here ]------------
| [   11.994495][  T248] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/248
| [   11.994791][  T248] Modules linked in: ipvtap ipvlan
| [   11.995290][  T248] Tainted: [W]=WARN
[   11.995437][  T248] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.995670][  T248] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.995893][  T248] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.996410][  T248] RSP: 0018:ffa0000000807020 EFLAGS: 00010286
[   11.996634][  T248] RAX: 00000000ffffffa6 RBX: ff110000104d4c80 RCX: 1ff4000000100dca
[   11.996892][  T248] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104d4d3c
[   11.997134][  T248] RBP: ff11000005231000 R08: 1fe220000209a9a9 R09: ff11000002428b58
[   11.997380][  T248] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   11.997635][  T248] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   11.997899][  T248] FS:  00007fe69414a840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   11.998181][  T248] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.998396][  T248] CR2: 000000001678a988 CR3: 000000000e5e7004 CR4: 0000000000771ef0
[   11.998664][  T248] PKRU: 55555554
[   11.998811][  T248] Call Trace:
[   11.998957][  T248]  <TASK>
[   11.999072][  T248]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.999257][  T248]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.999406][  T248]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   11.999592][  T248]  __dev_notify_flags (net/core/dev.c:9787)
[   11.999789][  T248]  ? netif_change_name (net/core/dev.c:1495)
[   11.999969][  T248]  ? __dev_change_flags (net/core/dev.c:9752)
[   12.000151][  T248]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   12.000329][  T248]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.000522][  T248]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   12.000718][  T248]  netif_change_flags (net/core/dev.c:9820)
[   12.000899][  T248]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   12.001080][  T248]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   12.001262][  T248]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   12.001442][  T248]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.001678][  T248]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.001859][  T248]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.002039][  T248]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.002218][  T248]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.002400][  T248]  ? __kernel_text_address (kernel/extable.c:79)
[   12.002589][  T248]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.002785][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.002966][  T248]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   12.003146][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.003326][  T248]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.003506][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.003697][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.003879][  T248]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   12.004058][  T248]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   12.004236][  T248]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   12.004420][  T248]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   12.004611][  T248]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   12.004806][  T248]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   12.004989][  T248]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.005172][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.005349][  T248]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.005536][  T248]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.005727][  T248]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.005910][  T248]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.006094][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.006272][  T248]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.006451][  T248]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.006640][  T248]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.006835][  T248]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.007018][  T248]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.007199][  T248]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.007381][  T248]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.007570][  T248]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.007764][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.007944][  T248]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.008127][  T248]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.008306][  T248]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.008494][  T248]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.008690][  T248]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.008871][  T248]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.009055][  T248]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.009238][  T248]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.009421][  T248]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.009611][  T248]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.009806][  T248]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.009988][  T248]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.010176][  T248]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.010357][  T248]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.010540][  T248]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.010766][  T248]  ? move_addr_to_kernel (net/socket.c:258)
[   12.010951][  T248]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.011133][  T248]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.011315][  T248]  ___sys_sendmsg (net/socket.c:2752)
[   12.011505][  T248]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   12.011731][  T248]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.011923][  T248]  __sys_sendmsg (net/socket.c:2784)
[   12.012102][  T248]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.012279][  T248]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   12.012500][  T248]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.012695][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.012879][  T248]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.013058][  T248]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.013238][  T248]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.013420][  T248]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.013639][  T248] RIP: 0033:0x7fe69438408e
[   12.013837][  T248] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.014349][  T248] RSP: 002b:00007ffcc0147050 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.014602][  T248] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe69438408e
[   12.014858][  T248] RDX: 0000000000000000 RSI: 00007ffcc0147100 RDI: 0000000000000005
[   12.015101][  T248] RBP: 00007ffcc0147060 R08: 0000000000000000 R09: 0000000000000000
[   12.015346][  T248] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac3
[   12.015597][  T248] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcc01477d0
| [   12.137205][  T251] ------------[ cut here ]------------
| [   12.137359][  T251] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/251
| [   12.137613][  T251] Modules linked in: ipvtap ipvlan
| [   12.138046][  T251] Tainted: [W]=WARN
[   12.138150][  T251] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.138330][  T251] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.138511][  T251] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.139009][  T251] RSP: 0018:ffa00000008a70b0 EFLAGS: 00010286
[   12.139183][  T251] RAX: 00000000ffffffa6 RBX: ff1100000df8ee40 RCX: 1ff4000000114ddc
[   12.139394][  T251] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df8eefc
[   12.139607][  T251] RBP: ff11000007edc000 R08: 1fe2200001bf1de1 R09: ff1100000958ae80
[   12.139819][  T251] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   12.140024][  T251] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   12.140242][  T251] FS:  00007fe7a14a1840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.140491][  T251] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.140668][  T251] CR2: 0000000000445730 CR3: 000000000e6cd006 CR4: 0000000000771ef0
[   12.140875][  T251] PKRU: 55555554
[   12.140977][  T251] Call Trace:
[   12.141096][  T251]  <TASK>
[   12.141167][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.141305][  T251]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   12.141444][  T251]  notifier_call_chain (kernel/notifier.c:85)
[   12.141591][  T251]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   12.141733][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.141871][  T251]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   12.142015][  T251]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   12.142121][  T251]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   12.142295][  T251]  ? ida_destroy (lib/idr.c:623)
[   12.142434][  T251]  netdev_upper_dev_link (net/core/dev.c:8972)
[   12.142573][  T251]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   12.142718][  T251] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   12.142859][  T251]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   12.143004][  T251]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   12.143145][  T251] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   12.143283][  T251]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   12.143424][  T251]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   12.143567][  T251]  ? __dev_get_by_name (net/core/dev.c:883)
[   12.144359][  T251]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   12.144516][  T251]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   12.144720][  T251]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.144887][  T251]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.145025][  T251]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.145163][  T251]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.145301][  T251]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.145439][  T251]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.145592][  T251]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.145736][  T251]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.145875][  T251]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.146015][  T251]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.146152][  T251]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.146290][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.146437][  T251]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.146577][  T251]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.146723][  T251]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.146860][  T251]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.146999][  T251]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.147142][  T251]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.147280][  T251]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.147426][  T251]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.147569][  T251]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.147714][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.147853][  T251]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.147992][  T251]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.148132][  T251]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.148279][  T251]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.148416][  T251]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.148560][  T251]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.148735][  T251]  ? move_addr_to_kernel (net/socket.c:258)
[   12.148879][  T251]  ___sys_sendmsg (net/socket.c:2752)
[   12.149016][  T251]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.149154][  T251]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.149308][  T251]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   12.149448][  T251]  __sys_sendmsg (net/socket.c:2784)
[   12.149591][  T251]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.149738][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.149875][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.150014][  T251]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.150160][  T251]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.150299][  T251]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.150438][  T251]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.150615][  T251] RIP: 0033:0x7fe7a16db08e
[   12.150765][  T251] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.151261][  T251] RSP: 002b:00007fff4a78bf90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.151474][  T251] RAX: ffffffffffffffda RBX: 00007fff4a78c748 RCX: 00007fe7a16db08e
[   12.151685][  T251] RDX: 0000000000000000 RSI: 00007fff4a78c040 RDI: 0000000000000005
[   12.151890][  T251] RBP: 00007fff4a78bfa0 R08: 0000000000000000 R09: 0000000000000000
[   12.152103][  T251] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac3
[   12.152308][  T251] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff4a78c700
| [   12.153930][  T251] ------------[ cut here ]------------
| [   12.154058][  T251] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/251
| [   12.154281][  T251] Modules linked in: ipvtap ipvlan
| [   12.154702][  T251] Tainted: [W]=WARN
[   12.154803][  T251] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.154968][  T251] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.155139][  T251] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.155614][  T251] RSP: 0018:ffa00000008a71b0 EFLAGS: 00010286
[   12.156003][  T251] RAX: 00000000ffffffa6 RBX: ff1100000df8f700 RCX: 1ff4000000114dfc
[   12.156199][  T251] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df8f7bc
[   12.156394][  T251] RBP: ff1100000f392000 R08: 1fe2200001bf1ef9 R09: ff1100000958ae80
[   12.156595][  T251] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.156856][  T251] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   12.157053][  T251] FS:  00007fe7a14a1840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.157283][  T251] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.157446][  T251] CR2: 0000000000445730 CR3: 000000000e6cd006 CR4: 0000000000771ef0
[   12.157712][  T251] PKRU: 55555554
[   12.157812][  T251] Call Trace:
[   12.157910][  T251]  <TASK>
[   12.157978][  T251]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.158167][  T251]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.158267][  T251]  ? ida_destroy (lib/idr.c:623)
[   12.158399][  T251]  __dev_notify_flags (net/core/dev.c:9787)
[   12.158535][  T251]  ? netif_change_name (net/core/dev.c:1495)
[   12.158729][  T251]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.158862][  T251]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   12.159027][  T251]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   12.159189][  T251]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   12.159321][  T251]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   12.159454][  T251]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   12.159598][  T251]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   12.159755][  T251]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   12.159889][  T251]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   12.160020][  T251]  ? __dev_get_by_name (net/core/dev.c:883)
[   12.160151][  T251]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   12.160288][  T251]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   12.160430][  T251]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.160567][  T251]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.160705][  T251]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.160837][  T251]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.160968][  T251]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.161099][  T251]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.161233][  T251]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.161372][  T251]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.161507][  T251]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.161638][  T251]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.161774][  T251]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.161906][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.162039][  T251]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.162175][  T251]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.162307][  T251]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.162438][  T251]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.162570][  T251]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.162710][  T251]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.162840][  T251]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.162975][  T251]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.163114][  T251]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.163247][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.163380][  T251]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.163519][  T251]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.163658][  T251]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.163791][  T251]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.163928][  T251]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.164061][  T251]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.164223][  T251]  ? move_addr_to_kernel (net/socket.c:258)
[   12.164358][  T251]  ___sys_sendmsg (net/socket.c:2752)
[   12.164496][  T251]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.164627][  T251]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.164780][  T251]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   12.164915][  T251]  __sys_sendmsg (net/socket.c:2784)
[   12.165047][  T251]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.165182][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.165312][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.165444][  T251]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.165578][  T251]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.165720][  T251]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.165852][  T251]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.166015][  T251] RIP: 0033:0x7fe7a16db08e
[   12.166152][  T251] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.166627][  T251] RSP: 002b:00007fff4a78bf90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.166829][  T251] RAX: ffffffffffffffda RBX: 00007fff4a78c748 RCX: 00007fe7a16db08e
[   12.167026][  T251] RDX: 0000000000000000 RSI: 00007fff4a78c040 RDI: 0000000000000005
[   12.167220][  T251] RBP: 00007fff4a78bfa0 R08: 0000000000000000 R09: 0000000000000000
[   12.167421][  T251] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac3
[   12.167620][  T251] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff4a78c700
| [   12.214953][  T253] ------------[ cut here ]------------
| [   12.215109][  T253] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/253
| [   12.215342][  T253] Modules linked in: ipvtap ipvlan
| [   12.215755][  T253] Tainted: [W]=WARN
[   12.215853][  T253] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.216014][  T253] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.216190][  T253] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.216658][  T253] RSP: 0018:ffa0000000647a80 EFLAGS: 00010286
[   12.216822][  T253] RAX: 00000000ffffffa6 RBX: ff1100000d7acac0 RCX: 1ff40000000c8f16
[   12.217022][  T253] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7acb7c
[   12.217215][  T253] RBP: ff1100000fd99000 R08: 1fe2200001af5971 R09: ff1100000fdf0b80
[   12.217407][  T253] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.217603][  T253] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fd99000
[   12.217812][  T253] FS:  00007ff015eee840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.218038][  T253] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.218199][  T253] CR2: 00007ff0160efc20 CR3: 0000000009dc6005 CR4: 0000000000771ef0
[   12.218396][  T253] PKRU: 55555554
[   12.218500][  T253] Call Trace:
[   12.218598][  T253]  <TASK>
[   12.218668][  T253]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.218800][  T253]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.218931][  T253]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.219029][  T253]  register_netdevice (net/core/dev.c:11488)
[   12.219160][  T253]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.219327][  T253]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.219462][  T253]  register_netdev (net/core/dev.c:11552)
[   12.219592][  T253]  loopback_net_init (drivers/net/loopback.c:218)
[   12.219727][  T253]  ops_init (net/core/net_namespace.c:137)
[   12.219829][  T253]  setup_net (net/core/net_namespace.c:446)
[   12.219927][  T253]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.220055][  T253]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.220190][  T253]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.220322][  T253]  copy_net_ns (net/core/net_namespace.c:579)
[   12.220452][  T253]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.220587][  T253]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.220726][  T253]  ksys_unshare (kernel/fork.c:3243)
[   12.220855][  T253]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.220984][  T253]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.221119][  T253]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.221248][  T253]  ? __ia32_sys_open (fs/open.c:1374)
[   12.221379][  T253]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.221511][  T253]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.221640][  T253]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.221774][  T253]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.221909][  T253]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.222038][  T253]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.222197][  T253] RIP: 0033:0x7ff0161b0bcb
[   12.222331][  T253] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.222807][  T253] RSP: 002b:00007ffc6a025ad8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.223002][  T253] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff0161b0bcb
[   12.223194][  T253] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.223386][  T253] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.223584][  T253] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc6a027d00
[   12.223786][  T253] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc6a02987f
| [   12.227965][  T253] ------------[ cut here ]------------
| [   12.228097][  T253] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/253
| [   12.228317][  T253] Modules linked in: ipvtap ipvlan
| [   12.228729][  T253] Tainted: [W]=WARN
[   12.228825][  T253] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.228986][  T253] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.229154][  T253] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.229624][  T253] RSP: 0018:ffa0000000647918 EFLAGS: 00010286
[   12.229791][  T253] RAX: 00000000ffffffa6 RBX: ff1100000df9ce40 RCX: 1ff40000000c8ee9
[   12.229984][  T253] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df9cefc
[   12.230175][  T253] RBP: ff1100000fd7c000 R08: 1fe2200001bf39e1 R09: ff1100000fdf0b80
[   12.230366][  T253] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.230568][  T253] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fd7c000
[   12.230766][  T253] FS:  00007ff015eee840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.230991][  T253] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.231152][  T253] CR2: 00007ff0160efc20 CR3: 0000000009dc6005 CR4: 0000000000771ef0
[   12.231355][  T253] PKRU: 55555554
[   12.231451][  T253] Call Trace:
[   12.231555][  T253]  <TASK>
[   12.231622][  T253]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.231756][  T253]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.231886][  T253]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.231984][  T253]  register_netdevice (net/core/dev.c:11488)
[   12.232114][  T253]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.232282][  T253]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.232412][  T253]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.232548][  T253]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.232682][  T253]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.232812][  T253]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.232941][  T253]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.233078][  T253]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   12.233209][  T253]  ops_init (net/core/net_namespace.c:137)
[   12.233309][  T253]  setup_net (net/core/net_namespace.c:446)
[   12.233406][  T253]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.233536][  T253]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.233667][  T253]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.233803][  T253]  copy_net_ns (net/core/net_namespace.c:579)
[   12.233940][  T253]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.234075][  T253]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.234207][  T253]  ksys_unshare (kernel/fork.c:3243)
[   12.234336][  T253]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.234469][  T253]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.234597][  T253]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.234735][  T253]  ? __ia32_sys_open (fs/open.c:1374)
[   12.234865][  T253]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.234993][  T253]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.235122][  T253]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.235250][  T253]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.235377][  T253]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.235509][  T253]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.235680][  T253] RIP: 0033:0x7ff0161b0bcb
[   12.235814][  T253] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.236269][  T253] RSP: 002b:00007ffc6a025ad8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.236472][  T253] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff0161b0bcb
[   12.236667][  T253] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.236860][  T253] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.237051][  T253] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc6a027d00
[   12.237241][  T253] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc6a02987f
| [   12.241032][  T253] ------------[ cut here ]------------
| [   12.241162][  T253] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/253
| [   12.241390][  T253] Modules linked in: ipvtap ipvlan
| [   12.241797][  T253] Tainted: [W]=WARN
[   12.241897][  T253] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.242060][  T253] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.242234][  T253] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.242709][  T253] RSP: 0018:ffa00000006478f8 EFLAGS: 00010286
[   12.242873][  T253] RAX: 00000000ffffffa6 RBX: ff1100000df9dc40 RCX: 1ff40000000c8ee5
[   12.243073][  T253] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df9dcfc
[   12.243265][  T253] RBP: ff1100000f7bc000 R08: 1fe2200001bf3ba1 R09: ff1100000fdf0b80
[   12.243465][  T253] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.243665][  T253] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f7bc000
[   12.243862][  T253] FS:  00007ff015eee840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.244101][  T253] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.244264][  T253] CR2: 00007ff0160efc20 CR3: 0000000009dc6005 CR4: 0000000000771ef0
[   12.244467][  T253] PKRU: 55555554
[   12.244565][  T253] Call Trace:
[   12.244667][  T253]  <TASK>
[   12.244735][  T253]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.244872][  T253]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.245003][  T253]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.245102][  T253]  register_netdevice (net/core/dev.c:11488)
[   12.245235][  T253]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.245399][  T253]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.245536][  T253]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.245679][  T253]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.245809][  T253]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.245940][  T253]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.246070][  T253]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.246201][  T253]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   12.246333][  T253]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.246470][  T253]  vti_init_net (net/ipv4/ip_vti.c:517)
[   12.246609][  T253]  ops_init (net/core/net_namespace.c:137)
[   12.246720][  T253]  setup_net (net/core/net_namespace.c:446)
[   12.246819][  T253]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.246948][  T253]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.247077][  T253]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.247211][  T253]  copy_net_ns (net/core/net_namespace.c:579)
[   12.247342][  T253]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.247488][  T253]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.247618][  T253]  ksys_unshare (kernel/fork.c:3243)
[   12.247753][  T253]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.247883][  T253]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.248013][  T253]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.248145][  T253]  ? __ia32_sys_open (fs/open.c:1374)
[   12.248284][  T253]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.248413][  T253]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.248546][  T253]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.248682][  T253]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.248811][  T253]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.248941][  T253]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.249116][  T253] RIP: 0033:0x7ff0161b0bcb
[   12.249252][  T253] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.249724][  T253] RSP: 002b:00007ffc6a025ad8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.249921][  T253] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff0161b0bcb
[   12.250122][  T253] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.250317][  T253] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.250515][  T253] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc6a027d00
[   12.250714][  T253] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc6a02987f
| [   12.263126][  T253] ------------[ cut here ]------------
| [   12.263264][  T253] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/253
| [   12.263493][  T253] Modules linked in: ipvtap ipvlan
| [   12.263898][  T253] Tainted: [W]=WARN
[   12.263996][  T253] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.264159][  T253] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.264327][  T253] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.264807][  T253] RSP: 0018:ffa0000000647a78 EFLAGS: 00010286
[   12.264972][  T253] RAX: 00000000ffffffa6 RBX: ff1100000d7ad8c0 RCX: 1ff40000000c8f15
[   12.265165][  T253] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7ad97c
[   12.265361][  T253] RBP: ff1100000f7b4000 R08: 1fe2200001af5b31 R09: ff1100000fdf0b80
[   12.265560][  T253] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.265764][  T253] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f7b4000
[   12.265958][  T253] FS:  00007ff015eee840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.266186][  T253] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.266350][  T253] CR2: 00007ff0160efc20 CR3: 0000000009dc6005 CR4: 0000000000771ef0
[   12.266550][  T253] PKRU: 55555554
[   12.266647][  T253] Call Trace:
[   12.266749][  T253]  <TASK>
[   12.266816][  T253]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.266945][  T253]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.267075][  T253]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.267176][  T253]  register_netdevice (net/core/dev.c:11488)
[   12.267308][  T253]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.267471][  T253]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.267603][  T253]  register_netdev (net/core/dev.c:11552)
[   12.267744][  T253]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   12.267876][  T253]  ops_init (net/core/net_namespace.c:137)
[   12.267976][  T253]  setup_net (net/core/net_namespace.c:446)
[   12.268077][  T253]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.268206][  T253]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.268336][  T253]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.268496][  T253]  copy_net_ns (net/core/net_namespace.c:579)
[   12.268628][  T253]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.268763][  T253]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.268894][  T253]  ksys_unshare (kernel/fork.c:3243)
[   12.269025][  T253]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.269155][  T253]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.269283][  T253]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.269413][  T253]  ? __ia32_sys_open (fs/open.c:1374)
[   12.269551][  T253]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.269686][  T253]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.269815][  T253]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.269947][  T253]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.270078][  T253]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.270208][  T253]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.270371][  T253] RIP: 0033:0x7ff0161b0bcb
[   12.270509][  T253] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.270980][  T253] RSP: 002b:00007ffc6a025ad8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.271177][  T253] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff0161b0bcb
[   12.271370][  T253] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.271570][  T253] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.271768][  T253] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc6a027d00
[   12.271963][  T253] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc6a02987f
| [   12.276082][  T253] ------------[ cut here ]------------
| [   12.276215][  T253] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/253
| [   12.276436][  T253] Modules linked in: ipvtap ipvlan
| [   12.276844][  T253] Tainted: [W]=WARN
[   12.276946][  T253] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.277109][  T253] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.277278][  T253] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.277751][  T253] RSP: 0018:ffa0000000647a68 EFLAGS: 00010286
[   12.277917][  T253] RAX: 00000000ffffffa6 RBX: ff11000005704740 RCX: 1ff40000000c8f13
[   12.278111][  T253] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000057047fc
[   12.278306][  T253] RBP: ff1100000ffa9000 R08: 1fe2200000ae0901 R09: ff1100000fdf0b80
[   12.278503][  T253] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.278703][  T253] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ffa9000
[   12.278900][  T253] FS:  00007ff015eee840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.279127][  T253] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.279291][  T253] CR2: 00007ff0160efc20 CR3: 0000000009dc6005 CR4: 0000000000771ef0
[   12.279494][  T253] PKRU: 55555554
[   12.279591][  T253] Call Trace:
[   12.280191][  T253]  <TASK>
[   12.280258][  T253]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.280389][  T253]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.280526][  T253]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.280708][  T253]  register_netdevice (net/core/dev.c:11488)
[   12.280896][  T253]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.281065][  T253]  register_netdev (net/core/dev.c:11552)
[   12.281194][  T253]  sit_init_net (net/ipv6/sit.c:1860)
[   12.281325][  T253]  ops_init (net/core/net_namespace.c:137)
[   12.281426][  T253]  setup_net (net/core/net_namespace.c:446)
[   12.281531][  T253]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.281716][  T253]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.281847][  T253]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.281978][  T253]  copy_net_ns (net/core/net_namespace.c:579)
[   12.282111][  T253]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.282245][  T253]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.282377][  T253]  ksys_unshare (kernel/fork.c:3243)
[   12.282513][  T253]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.282643][  T253]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.282828][  T253]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.282959][  T253]  ? __ia32_sys_open (fs/open.c:1374)
[   12.283093][  T253]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.283224][  T253]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.283355][  T253]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.283490][  T253]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.283622][  T253]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.283813][  T253]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.283979][  T253] RIP: 0033:0x7ff0161b0bcb
[   12.284113][  T253] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.284583][  T253] RSP: 002b:00007ffc6a025ad8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.284839][  T253] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff0161b0bcb
[   12.285035][  T253] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.285230][  T253] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.285425][  T253] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc6a027d00
[   12.285624][  T253] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc6a02987f
| [   12.290824][  T253] ------------[ cut here ]------------
| [   12.290961][  T253] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/253
| [   12.291190][  T253] Modules linked in: ipvtap ipvlan
| [   12.291597][  T253] Tainted: [W]=WARN
[   12.291700][  T253] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.291863][  T253] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.292033][  T253] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.292508][  T253] RSP: 0018:ffa0000000647a78 EFLAGS: 00010286
[   12.293198][  T253] RAX: 00000000ffffffa6 RBX: ff1100000a133c40 RCX: 1ff40000000c8f15
[   12.293394][  T253] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a133cfc
[   12.293595][  T253] RBP: ff1100000fd44000 R08: 1fe22000014267a1 R09: ff1100000fdf0b80
[   12.293846][  T253] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.294042][  T253] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fd44000
[   12.294239][  T253] FS:  00007ff015eee840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.294474][  T253] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.294639][  T253] CR2: 00007ff0160efc20 CR3: 0000000009dc6005 CR4: 0000000000771ef0
[   12.294894][  T253] PKRU: 55555554
[   12.294993][  T253] Call Trace:
[   12.295089][  T253]  <TASK>
[   12.295157][  T253]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.295289][  T253]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.295422][  T253]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.295527][  T253]  register_netdevice (net/core/dev.c:11488)
[   12.295717][  T253]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.295881][  T253]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.296014][  T253]  register_netdev (net/core/dev.c:11552)
[   12.296145][  T253]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   12.296276][  T253]  ops_init (net/core/net_namespace.c:137)
[   12.296377][  T253]  setup_net (net/core/net_namespace.c:446)
[   12.296484][  T253]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.296615][  T253]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.296803][  T253]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.296937][  T253]  copy_net_ns (net/core/net_namespace.c:579)
[   12.297069][  T253]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.297202][  T253]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.297335][  T253]  ksys_unshare (kernel/fork.c:3243)
[   12.297470][  T253]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.297601][  T253]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.297787][  T253]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.297919][  T253]  ? __ia32_sys_open (fs/open.c:1374)
[   12.298051][  T253]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.298182][  T253]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.298313][  T253]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.298444][  T253]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.298578][  T253]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.298763][  T253]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.298926][  T253] RIP: 0033:0x7ff0161b0bcb
[   12.299063][  T253] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.299534][  T253] RSP: 002b:00007ffc6a025ad8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.299785][  T253] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff0161b0bcb
[   12.299978][  T253] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.300173][  T253] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.300369][  T253] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc6a027d00
[   12.300569][  T253] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc6a02987f
| [   12.330527][  T254] ------------[ cut here ]------------
| [   12.330684][  T254] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/254
| [   12.330911][  T254] Modules linked in: ipvtap ipvlan
| [   12.331312][  T254] Tainted: [W]=WARN
[   12.331412][  T254] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.331581][  T254] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.331758][  T254] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.332223][  T254] RSP: 0018:ffa00000004e7020 EFLAGS: 00010286
[   12.332385][  T254] RAX: 00000000ffffffa6 RBX: ff1100000dc1b380 RCX: 1ff400000009cdca
[   12.332588][  T254] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dc1b43c
[   12.332792][  T254] RBP: ff1100000fd99000 R08: 1fe2200001b83689 R09: ff1100000e798b58
[   12.332983][  T254] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   12.333174][  T254] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   12.333368][  T254] FS:  00007fa12824b840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   12.333598][  T254] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.333762][  T254] CR2: 000000000ae57988 CR3: 000000000b7d4005 CR4: 0000000000771ef0
[   12.333954][  T254] PKRU: 55555554
[   12.334050][  T254] Call Trace:
[   12.334145][  T254]  <TASK>
[   12.334213][  T254]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.334343][  T254]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.334443][  T254]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   12.334576][  T254]  __dev_notify_flags (net/core/dev.c:9787)
[   12.334804][  T254]  ? netif_change_name (net/core/dev.c:1495)
[   12.335019][  T254]  ? __dev_change_flags (net/core/dev.c:9752)
[   12.335149][  T254]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   12.335278][  T254]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.335412][  T254]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   12.335551][  T254]  netif_change_flags (net/core/dev.c:9820)
[   12.335758][  T254]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   12.335887][  T254]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   12.336018][  T254]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   12.336147][  T254]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.336310][  T254]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.336441][  T254]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.336574][  T254]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.336789][  T254]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.336919][  T254]  ? __kernel_text_address (kernel/extable.c:79)
[   12.337047][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.337179][  T254]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.337309][  T254]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   12.337440][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.337575][  T254]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.337779][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.337908][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.338037][  T254]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   12.338168][  T254]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   12.338297][  T254]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   12.338427][  T254]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   12.338563][  T254]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   12.338720][  T254]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   12.338851][  T254]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.338981][  T254]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.339109][  T254]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.339236][  T254]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.339366][  T254]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.339499][  T254]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.339632][  T254]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.339763][  T254]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.339893][  T254]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.340022][  T254]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.340153][  T254]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.340281][  T254]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.340411][  T254]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.340547][  T254]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.340680][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.340812][  T254]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.340939][  T254]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.341070][  T254]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.341200][  T254]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.341330][  T254]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.341468][  T254]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.341598][  T254]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.341732][  T254]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.341862][  T254]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.341991][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.342122][  T254]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.342253][  T254]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.342384][  T254]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.342520][  T254]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.342657][  T254]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.342786][  T254]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.342946][  T254]  ? move_addr_to_kernel (net/socket.c:258)
[   12.343076][  T254]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.343206][  T254]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.343336][  T254]  ___sys_sendmsg (net/socket.c:2752)
[   12.343472][  T254]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   12.343637][  T254]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.343785][  T254]  __sys_sendmsg (net/socket.c:2784)
[   12.343915][  T254]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.344043][  T254]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   12.344205][  T254]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.344335][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.344470][  T254]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.344600][  T254]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.344732][  T254]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.344860][  T254]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.345021][  T254] RIP: 0033:0x7fa12848508e
[   12.345156][  T254] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.345624][  T254] RSP: 002b:00007ffcef6eecc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.345824][  T254] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa12848508e
[   12.346015][  T254] RDX: 0000000000000000 RSI: 00007ffcef6eed70 RDI: 0000000000000005
[   12.346206][  T254] RBP: 00007ffcef6eecd0 R08: 0000000000000000 R09: 0000000000000000
[   12.346399][  T254] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac3
[   12.346594][  T254] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcef6ef440
| [   12.475211][  T257] ------------[ cut here ]------------
| [   12.475391][  T257] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/257
| [   12.475642][  T257] Modules linked in: ipvtap ipvlan
| [   12.476130][  T257] Tainted: [W]=WARN
[   12.476236][  T257] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.476412][  T257] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.476597][  T257] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.477095][  T257] RSP: 0018:ffa000000096f0b0 EFLAGS: 00010286
[   12.477269][  T257] RAX: 00000000ffffffa6 RBX: ff1100000a1338c0 RCX: 1ff400000012dddc
[   12.477480][  T257] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a13397c
[   12.477693][  T257] RBP: ff11000007edc000 R08: 1fe2200001426731 R09: ff11000008f4d180
[   12.477898][  T257] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   12.478105][  T257] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   12.478314][  T257] FS:  00007f0ada150840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   12.478563][  T257] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.478742][  T257] CR2: 0000000000445730 CR3: 0000000004b1c002 CR4: 0000000000771ef0
[   12.478948][  T257] PKRU: 55555554
[   12.479051][  T257] Call Trace:
[   12.479154][  T257]  <TASK>
[   12.479226][  T257]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.479365][  T257]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   12.479512][  T257]  notifier_call_chain (kernel/notifier.c:85)
[   12.479694][  T257]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   12.479835][  T257]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.479975][  T257]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   12.480113][  T257]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   12.480218][  T257]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   12.480394][  T257]  ? ida_destroy (lib/idr.c:623)
[   12.480542][  T257]  netdev_upper_dev_link (net/core/dev.c:8972)
[   12.480687][  T257]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   12.480826][  T257] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   12.480966][  T257]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   12.481104][  T257]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   12.481246][  T257] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   12.481385][  T257]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   12.481530][  T257]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   12.481736][  T257]  ? __dev_get_by_name (net/core/dev.c:883)
[   12.481947][  T257]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   12.482091][  T257]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   12.482234][  T257]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.482374][  T257]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.482519][  T257]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.482736][  T257]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.482874][  T257]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.483009][  T257]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.483150][  T257]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.483288][  T257]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.483427][  T257]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.483573][  T257]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.483772][  T257]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.483909][  T257]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.484047][  T257]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.484184][  T257]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.484324][  T257]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.484467][  T257]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.484607][  T257]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.484855][  T257]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.484992][  T257]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.485132][  T257]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.485272][  T257]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.485412][  T257]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.485556][  T257]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.485728][  T257]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.485867][  T257]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.486008][  T257]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.486147][  T257]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.486287][  T257]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.486463][  T257]  ? move_addr_to_kernel (net/socket.c:258)
[   12.486606][  T257]  ___sys_sendmsg (net/socket.c:2752)
[   12.486750][  T257]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.486887][  T257]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.487035][  T257]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   12.487175][  T257]  __sys_sendmsg (net/socket.c:2784)
[   12.487312][  T257]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.487455][  T257]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.487599][  T257]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.487743][  T257]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.487882][  T257]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.488023][  T257]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.488161][  T257]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.488333][  T257] RIP: 0033:0x7f0ada38a08e
[   12.488486][  T257] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.488985][  T257] RSP: 002b:00007fff224cd760 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.489194][  T257] RAX: ffffffffffffffda RBX: 00007fff224cdf18 RCX: 00007f0ada38a08e
[   12.489399][  T257] RDX: 0000000000000000 RSI: 00007fff224cd810 RDI: 0000000000000005
[   12.489611][  T257] RBP: 00007fff224cd770 R08: 0000000000000000 R09: 0000000000000000
[   12.489823][  T257] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac3
[   12.490034][  T257] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff224cded0
| [   12.491728][  T257] ------------[ cut here ]------------
| [   12.491862][  T257] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/257
| [   12.492088][  T257] Modules linked in: ipvtap ipvlan
| [   12.492498][  T257] Tainted: [W]=WARN
[   12.492598][  T257] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.492885][  T257] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.493057][  T257] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.493534][  T257] RSP: 0018:ffa000000096f1b0 EFLAGS: 00010286
[   12.493709][  T257] RAX: 00000000ffffffa6 RBX: ff1100000df9cc80 RCX: 1ff400000012ddfc
[   12.493904][  T257] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df9cd3c
[   12.494100][  T257] RBP: ff110000105c2000 R08: 1fe2200001bf39a9 R09: ff11000008f4d180
[   12.494296][  T257] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.494497][  T257] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   12.494699][  T257] FS:  00007f0ada150840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   12.494934][  T257] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.495099][  T257] CR2: 0000000000445730 CR3: 0000000004b1c002 CR4: 0000000000771ef0
[   12.495297][  T257] PKRU: 55555554
[   12.495396][  T257] Call Trace:
[   12.495501][  T257]  <TASK>
[   12.495570][  T257]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.495709][  T257]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.495809][  T257]  ? ida_destroy (lib/idr.c:623)
[   12.495942][  T257]  __dev_notify_flags (net/core/dev.c:9787)
[   12.496076][  T257]  ? netif_change_name (net/core/dev.c:1495)
[   12.496209][  T257]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.496341][  T257]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   12.496513][  T257]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   12.496681][  T257]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   12.496814][  T257]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   12.496947][  T257]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   12.497081][  T257]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   12.497214][  T257]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   12.497350][  T257]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   12.497486][  T257]  ? __dev_get_by_name (net/core/dev.c:883)
[   12.497618][  T257]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   12.497761][  T257]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   12.497900][  T257]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.498033][  T257]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.498165][  T257]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.498296][  T257]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.498430][  T257]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.498568][  T257]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.498710][  T257]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.498843][  T257]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.498975][  T257]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.499107][  T257]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.499241][  T257]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.499374][  T257]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.499513][  T257]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.499646][  T257]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.499784][  T257]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.499917][  T257]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.500051][  T257]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.500187][  T257]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.500319][  T257]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.500454][  T257]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.500592][  T257]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.500731][  T257]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.500866][  T257]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.500999][  T257]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.501134][  T257]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.501268][  T257]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.501402][  T257]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.501540][  T257]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.501710][  T257]  ? move_addr_to_kernel (net/socket.c:258)
[   12.501847][  T257]  ___sys_sendmsg (net/socket.c:2752)
[   12.501979][  T257]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.502111][  T257]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.502253][  T257]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   12.502388][  T257]  __sys_sendmsg (net/socket.c:2784)
[   12.502529][  T257]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.502670][  T257]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.502803][  T257]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.502938][  T257]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.503070][  T257]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.503203][  T257]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.503335][  T257]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.503505][  T257] RIP: 0033:0x7f0ada38a08e
[   12.503644][  T257] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.504121][  T257] RSP: 002b:00007fff224cd760 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.504322][  T257] RAX: ffffffffffffffda RBX: 00007fff224cdf18 RCX: 00007f0ada38a08e
[   12.504527][  T257] RDX: 0000000000000000 RSI: 00007fff224cd810 RDI: 0000000000000005
[   12.504729][  T257] RBP: 00007fff224cd770 R08: 0000000000000000 R09: 0000000000000000
[   12.504926][  T257] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac3
[   12.505121][  T257] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff224cded0
| [   12.556080][  T259] ------------[ cut here ]------------
| [   12.556242][  T259] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/259
| [   12.556472][  T259] Modules linked in: ipvtap ipvlan
| [   12.556880][  T259] Tainted: [W]=WARN
[   12.556978][  T259] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.557140][  T259] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.557308][  T259] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.558272][  T259] RSP: 0018:ffa000000098fa80 EFLAGS: 00010286
[   12.558437][  T259] RAX: 00000000ffffffa6 RBX: ff11000005705a80 RCX: 1ff4000000131f16
[   12.558634][  T259] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005705b3c
[   12.558831][  T259] RBP: ff1100000f904000 R08: 1fe2200000ae0b69 R09: ff1100000e79d180
[   12.559024][  T259] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.559215][  T259] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f904000
[   12.559410][  T259] FS:  00007f6f07254840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.559642][  T259] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.559809][  T259] CR2: 00007f6f07460690 CR3: 000000000f6df005 CR4: 0000000000771ef0
[   12.560005][  T259] PKRU: 55555554
[   12.560102][  T259] Call Trace:
[   12.560199][  T259]  <TASK>
[   12.560272][  T259]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.560402][  T259]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.560537][  T259]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.560636][  T259]  register_netdevice (net/core/dev.c:11488)
[   12.560775][  T259]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.560936][  T259]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.561068][  T259]  register_netdev (net/core/dev.c:11552)
[   12.561197][  T259]  loopback_net_init (drivers/net/loopback.c:218)
[   12.561327][  T259]  ops_init (net/core/net_namespace.c:137)
[   12.561427][  T259]  setup_net (net/core/net_namespace.c:446)
[   12.561533][  T259]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.561665][  T259]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.561796][  T259]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.561928][  T259]  copy_net_ns (net/core/net_namespace.c:579)
[   12.562057][  T259]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.562189][  T259]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.562319][  T259]  ksys_unshare (kernel/fork.c:3243)
[   12.562447][  T259]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.562582][  T259]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.562718][  T259]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.562849][  T259]  ? __ia32_sys_open (fs/open.c:1374)
[   12.562979][  T259]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.563107][  T259]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.563235][  T259]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.563363][  T259]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.563497][  T259]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.563629][  T259]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.563792][  T259] RIP: 0033:0x7f6f07516bcb
[   12.563927][  T259] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.564384][  T259] RSP: 002b:00007fff896b3b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.564587][  T259] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6f07516bcb
[   12.564790][  T259] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.564981][  T259] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.565173][  T259] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff896b5dc0
[   12.565369][  T259] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff896b687f
| [   12.569128][  T259] ------------[ cut here ]------------
| [   12.569268][  T259] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/259
| [   12.569500][  T259] Modules linked in: ipvtap ipvlan
| [   12.569900][  T259] Tainted: [W]=WARN
[   12.569997][  T259] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.570166][  T259] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.570332][  T259] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.570798][  T259] RSP: 0018:ffa000000098f918 EFLAGS: 00010286
[   12.570961][  T259] RAX: 00000000ffffffa6 RBX: ff1100000df9c3c0 RCX: 1ff4000000131ee9
[   12.571165][  T259] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df9c47c
[   12.571355][  T259] RBP: ff1100000f861000 R08: 1fe2200001bf3891 R09: ff1100000e79d180
[   12.571554][  T259] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.571751][  T259] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f861000
[   12.571951][  T259] FS:  00007f6f07254840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.572175][  T259] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.572336][  T259] CR2: 00007f6f07460690 CR3: 000000000f6df005 CR4: 0000000000771ef0
[   12.572537][  T259] PKRU: 55555554
[   12.572632][  T259] Call Trace:
[   12.572738][  T259]  <TASK>
[   12.572806][  T259]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.572934][  T259]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.573063][  T259]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.573161][  T259]  register_netdevice (net/core/dev.c:11488)
[   12.573291][  T259]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.573450][  T259]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.573593][  T259]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.573730][  T259]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.573858][  T259]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.573988][  T259]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.574116][  T259]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.574247][  T259]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   12.574377][  T259]  ops_init (net/core/net_namespace.c:137)
[   12.574486][  T259]  setup_net (net/core/net_namespace.c:446)
[   12.574584][  T259]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.574718][  T259]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.574847][  T259]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.574977][  T259]  copy_net_ns (net/core/net_namespace.c:579)
[   12.575106][  T259]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.575237][  T259]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.575373][  T259]  ksys_unshare (kernel/fork.c:3243)
[   12.575505][  T259]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.575634][  T259]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.575767][  T259]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.575895][  T259]  ? __ia32_sys_open (fs/open.c:1374)
[   12.576024][  T259]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.576157][  T259]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.576283][  T259]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.576411][  T259]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.576547][  T259]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.576683][  T259]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.576841][  T259] RIP: 0033:0x7f6f07516bcb
[   12.576982][  T259] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.577438][  T259] RSP: 002b:00007fff896b3b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.577640][  T259] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6f07516bcb
[   12.577843][  T259] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.578034][  T259] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.578226][  T259] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff896b5dc0
[   12.578418][  T259] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff896b687f
| [   12.589174][  T259] ------------[ cut here ]------------
| [   12.589327][  T259] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/259
| [   12.589576][  T259] Modules linked in: ipvtap ipvlan
| [   12.589994][  T259] Tainted: [W]=WARN
[   12.590096][  T259] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.590262][  T259] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.590436][  T259] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.590915][  T259] RSP: 0018:ffa000000098f8f8 EFLAGS: 00010286
[   12.591085][  T259] RAX: 00000000ffffffa6 RBX: ff11000012981e00 RCX: 1ff4000000131ee5
[   12.591281][  T259] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012981ebc
[   12.591482][  T259] RBP: ff1100000f8f4000 R08: 1fe22000025303d9 R09: ff1100000e79d180
[   12.591685][  T259] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.591883][  T259] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f8f4000
[   12.592084][  T259] FS:  00007f6f07254840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.592317][  T259] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.592489][  T259] CR2: 00007f6f07460690 CR3: 000000000f6df005 CR4: 0000000000771ef0
[   12.592694][  T259] PKRU: 55555554
[   12.592795][  T259] Call Trace:
[   12.592894][  T259]  <TASK>
[   12.592964][  T259]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.593098][  T259]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.593234][  T259]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.593335][  T259]  register_netdevice (net/core/dev.c:11488)
[   12.593474][  T259]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.593640][  T259]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.593783][  T259]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.593919][  T259]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.594051][  T259]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.594187][  T259]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.594320][  T259]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.594454][  T259]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   12.594592][  T259]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.594732][  T259]  vti_init_net (net/ipv4/ip_vti.c:517)
[   12.594865][  T259]  ops_init (net/core/net_namespace.c:137)
[   12.594967][  T259]  setup_net (net/core/net_namespace.c:446)
[   12.595068][  T259]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.595201][  T259]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.595334][  T259]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.595474][  T259]  copy_net_ns (net/core/net_namespace.c:579)
[   12.595607][  T259]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.595747][  T259]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.595879][  T259]  ksys_unshare (kernel/fork.c:3243)
[   12.596011][  T259]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.596144][  T259]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.596276][  T259]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.596409][  T259]  ? __ia32_sys_open (fs/open.c:1374)
[   12.596548][  T259]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.596685][  T259]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.596817][  T259]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.596949][  T259]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.597085][  T259]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.597217][  T259]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.597381][  T259] RIP: 0033:0x7f6f07516bcb
[   12.597524][  T259] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.597995][  T259] RSP: 002b:00007fff896b3b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.598196][  T259] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6f07516bcb
[   12.598393][  T259] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.598595][  T259] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.598795][  T259] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff896b5dc0
[   12.598992][  T259] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff896b687f
| [   12.603171][  T259] ------------[ cut here ]------------
| [   12.603311][  T259] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/259
| [   12.603541][  T259] Modules linked in: ipvtap ipvlan
| [   12.603946][  T259] Tainted: [W]=WARN
[   12.604043][  T259] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.604209][  T259] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.604380][  T259] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.604853][  T259] RSP: 0018:ffa000000098fa78 EFLAGS: 00010286
[   12.605021][  T259] RAX: 00000000ffffffa6 RBX: ff11000012981000 RCX: 1ff4000000131f15
[   12.605215][  T259] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000129810bc
[   12.605410][  T259] RBP: ff1100000f834000 R08: 1fe2200002530219 R09: ff1100000e79d180
[   12.605611][  T259] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.605813][  T259] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f834000
[   12.606009][  T259] FS:  00007f6f07254840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.606237][  T259] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.606400][  T259] CR2: 00007f6f07460690 CR3: 000000000f6df005 CR4: 0000000000771ef0
[   12.606603][  T259] PKRU: 55555554
[   12.606708][  T259] Call Trace:
[   12.606805][  T259]  <TASK>
[   12.606873][  T259]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.607003][  T259]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.607134][  T259]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.607234][  T259]  register_netdevice (net/core/dev.c:11488)
[   12.607366][  T259]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.607530][  T259]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.607669][  T259]  register_netdev (net/core/dev.c:11552)
[   12.607798][  T259]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   12.607930][  T259]  ops_init (net/core/net_namespace.c:137)
[   12.608030][  T259]  setup_net (net/core/net_namespace.c:446)
[   12.608128][  T259]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.608256][  T259]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.608387][  T259]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.608525][  T259]  copy_net_ns (net/core/net_namespace.c:579)
[   12.608661][  T259]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.608794][  T259]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.608924][  T259]  ksys_unshare (kernel/fork.c:3243)
[   12.609054][  T259]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.609184][  T259]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.609314][  T259]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.609449][  T259]  ? __ia32_sys_open (fs/open.c:1374)
[   12.609586][  T259]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.609721][  T259]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.609850][  T259]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.609979][  T259]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.610108][  T259]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.610238][  T259]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.610398][  T259] RIP: 0033:0x7f6f07516bcb
[   12.610538][  T259] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.611008][  T259] RSP: 002b:00007fff896b3b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.611203][  T259] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6f07516bcb
[   12.611398][  T259] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.611596][  T259] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.611793][  T259] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff896b5dc0
[   12.611987][  T259] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff896b687f
| [   12.616097][  T259] ------------[ cut here ]------------
| [   12.616232][  T259] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/259
| [   12.616456][  T259] Modules linked in: ipvtap ipvlan
| [   12.616871][  T259] Tainted: [W]=WARN
[   12.616971][  T259] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.617135][  T259] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.617305][  T259] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.617785][  T259] RSP: 0018:ffa000000098fa68 EFLAGS: 00010286
[   12.617951][  T259] RAX: 00000000ffffffa6 RBX: ff11000012980200 RCX: 1ff4000000131f13
[   12.618147][  T259] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000129802bc
[   12.618343][  T259] RBP: ff1100000f809000 R08: 1fe2200002530059 R09: ff1100000e79d180
[   12.618540][  T259] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.618742][  T259] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f809000
[   12.618939][  T259] FS:  00007f6f07254840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.619170][  T259] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.619333][  T259] CR2: 00007f6f07460690 CR3: 000000000f6df005 CR4: 0000000000771ef0
[   12.619535][  T259] PKRU: 55555554
[   12.619633][  T259] Call Trace:
[   12.619737][  T259]  <TASK>
[   12.619805][  T259]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.619936][  T259]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.620072][  T259]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.620172][  T259]  register_netdevice (net/core/dev.c:11488)
[   12.620305][  T259]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.620477][  T259]  register_netdev (net/core/dev.c:11552)
[   12.620608][  T259]  sit_init_net (net/ipv6/sit.c:1860)
[   12.620747][  T259]  ops_init (net/core/net_namespace.c:137)
[   12.620847][  T259]  setup_net (net/core/net_namespace.c:446)
[   12.620946][  T259]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.621080][  T259]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.621210][  T259]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.621346][  T259]  copy_net_ns (net/core/net_namespace.c:579)
[   12.621480][  T259]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.621615][  T259]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.621752][  T259]  ksys_unshare (kernel/fork.c:3243)
[   12.621882][  T259]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.622016][  T259]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.622147][  T259]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.622279][  T259]  ? __ia32_sys_open (fs/open.c:1374)
[   12.622413][  T259]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.622549][  T259]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.622685][  T259]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.622814][  T259]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.622948][  T259]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.623079][  T259]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.623243][  T259] RIP: 0033:0x7f6f07516bcb
[   12.623380][  T259] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.623857][  T259] RSP: 002b:00007fff896b3b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.624060][  T259] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6f07516bcb
[   12.624256][  T259] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.624452][  T259] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.624658][  T259] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff896b5dc0
[   12.624858][  T259] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff896b687f
| [   12.629175][  T259] ------------[ cut here ]------------
| [   12.629311][  T259] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/259
| [   12.629546][  T259] Modules linked in: ipvtap ipvlan
| [   12.629952][  T259] Tainted: [W]=WARN
[   12.630049][  T259] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.630214][  T259] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.630383][  T259] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.630860][  T259] RSP: 0018:ffa000000098fa78 EFLAGS: 00010286
[   12.631024][  T259] RAX: 00000000ffffffa6 RBX: ff11000012983540 RCX: 1ff4000000131f15
[   12.631221][  T259] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000129835fc
[   12.631414][  T259] RBP: ff1100000f7ec000 R08: 1fe22000025306c1 R09: ff1100000e79d180
[   12.631619][  T259] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.631818][  T259] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f7ec000
[   12.632016][  T259] FS:  00007f6f07254840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.632242][  T259] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.632411][  T259] CR2: 00007f6f07460690 CR3: 000000000f6df005 CR4: 0000000000771ef0
[   12.632613][  T259] PKRU: 55555554
[   12.632715][  T259] Call Trace:
[   12.632811][  T259]  <TASK>
[   12.632881][  T259]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.633010][  T259]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.633140][  T259]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.633239][  T259]  register_netdevice (net/core/dev.c:11488)
[   12.633378][  T259]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.633543][  T259]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.633680][  T259]  register_netdev (net/core/dev.c:11552)
[   12.633812][  T259]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   12.633942][  T259]  ops_init (net/core/net_namespace.c:137)
[   12.634042][  T259]  setup_net (net/core/net_namespace.c:446)
[   12.634147][  T259]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.634276][  T259]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.634405][  T259]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.634539][  T259]  copy_net_ns (net/core/net_namespace.c:579)
[   12.634768][  T259]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.634900][  T259]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.635030][  T259]  ksys_unshare (kernel/fork.c:3243)
[   12.635168][  T259]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.635382][  T259]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.635517][  T259]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.635647][  T259]  ? __ia32_sys_open (fs/open.c:1374)
[   12.635788][  T259]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.636003][  T259]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.636138][  T259]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.636267][  T259]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.636396][  T259]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.636616][  T259]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.636783][  T259] RIP: 0033:0x7f6f07516bcb
[   12.636917][  T259] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.637482][  T259] RSP: 002b:00007fff896b3b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.637684][  T259] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6f07516bcb
[   12.637876][  T259] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.638085][  T259] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.638365][  T259] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff896b5dc0
[   12.638560][  T259] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff896b687f
| [   12.673640][  T260] ------------[ cut here ]------------
| [   12.673803][  T260] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/260
| [   12.674030][  T260] Modules linked in: ipvtap ipvlan
| [   12.674429][  T260] Tainted: [W]=WARN
[   12.674532][  T260] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.674701][  T260] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.674871][  T260] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.675333][  T260] RSP: 0018:ffa000000099f020 EFLAGS: 00010286
[   12.675502][  T260] RAX: 00000000ffffffa6 RBX: ff11000012983e00 RCX: 1ff4000000133dca
[   12.675699][  T260] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012983ebc
[   12.675891][  T260] RBP: ff1100000f904000 R08: 1fe22000025307d9 R09: ff1100000f5d5158
[   12.676085][  T260] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   12.676279][  T260] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   12.676479][  T260] FS:  00007f6ed4cea840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   12.676711][  T260] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.676874][  T260] CR2: 000000003ff25988 CR3: 000000000feb7001 CR4: 0000000000771ef0
[   12.677069][  T260] PKRU: 55555554
[   12.677166][  T260] Call Trace:
[   12.677265][  T260]  <TASK>
[   12.677333][  T260]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.677470][  T260]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.677569][  T260]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   12.677704][  T260]  __dev_notify_flags (net/core/dev.c:9787)
[   12.677836][  T260]  ? netif_change_name (net/core/dev.c:1495)
[   12.677966][  T260]  ? __dev_change_flags (net/core/dev.c:9752)
[   12.678097][  T260]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   12.678228][  T260]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.678358][  T260]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   12.678494][  T260]  netif_change_flags (net/core/dev.c:9820)
[   12.678625][  T260]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   12.678859][  T260]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   12.678991][  T260]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   12.679123][  T260]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.679287][  T260]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.679416][  T260]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.679554][  T260]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.679741][  T260]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.679872][  T260]  ? __kernel_text_address (kernel/extable.c:79)
[   12.680003][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.680135][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.680265][  T260]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   12.680395][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.680529][  T260]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.680714][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.680843][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.681059][  T260]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   12.681190][  T260]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   12.681320][  T260]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   12.681451][  T260]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   12.681586][  T260]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   12.681805][  T260]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   12.681939][  T260]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.682072][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.682200][  T260]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.682330][  T260]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.682463][  T260]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.682593][  T260]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.682814][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.682944][  T260]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.683073][  T260]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.683203][  T260]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.683333][  T260]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.683471][  T260]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.683600][  T260]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.683775][  T260]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.683905][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.684037][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.684166][  T260]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.684297][  T260]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.684428][  T260]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.684564][  T260]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.684701][  T260]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.684834][  T260]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.684966][  T260]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.685099][  T260]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.685230][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.685361][  T260]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.685498][  T260]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.685629][  T260]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.685765][  T260]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.685897][  T260]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.686028][  T260]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.686189][  T260]  ? move_addr_to_kernel (net/socket.c:258)
[   12.686321][  T260]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.686453][  T260]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.686588][  T260]  ___sys_sendmsg (net/socket.c:2752)
[   12.686721][  T260]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   12.686884][  T260]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.687027][  T260]  __sys_sendmsg (net/socket.c:2784)
[   12.687157][  T260]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.687287][  T260]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   12.687454][  T260]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.687588][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.687725][  T260]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.687856][  T260]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.687987][  T260]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.688118][  T260]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.688281][  T260] RIP: 0033:0x7f6ed4f2408e
[   12.688419][  T260] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.688897][  T260] RSP: 002b:00007fffccb02440 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.689155][  T260] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f6ed4f2408e
[   12.689364][  T260] RDX: 0000000000000000 RSI: 00007fffccb024f0 RDI: 0000000000000005
[   12.689566][  T260] RBP: 00007fffccb02450 R08: 0000000000000000 R09: 0000000000000000
[   12.689764][  T260] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac3
[   12.689960][  T260] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffccb02bc0
| [   12.824282][  T263] ------------[ cut here ]------------
| [   12.824478][  T263] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/263
| [   12.824748][  T263] Modules linked in: ipvtap ipvlan
| [   12.825194][  T263] Tainted: [W]=WARN
[   12.825302][  T263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.825495][  T263] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.825687][  T263] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.826196][  T263] RSP: 0018:ffa00000009af0b0 EFLAGS: 00010286
[   12.826377][  T263] RAX: 00000000ffffffa6 RBX: ff1100000a132e40 RCX: 1ff4000000135ddc
[   12.826595][  T263] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a132efc
[   12.827338][  T263] RBP: ff11000007edc000 R08: 1fe22000014265e1 R09: ff1100000e7c8b80
[   12.827559][  T263] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   12.827774][  T263] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   12.827987][  T263] FS:  00007fd597947840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.828238][  T263] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.828418][  T263] CR2: 0000000000445730 CR3: 000000000f6be002 CR4: 0000000000771ef0
[   12.828636][  T263] PKRU: 55555554
[   12.828749][  T263] Call Trace:
[   12.828857][  T263]  <TASK>
[   12.828933][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.829077][  T263]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   12.829220][  T263]  notifier_call_chain (kernel/notifier.c:85)
[   12.829365][  T263]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   12.829512][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.829661][  T263]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   12.829805][  T263]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   12.829913][  T263]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   12.830093][  T263]  ? ida_destroy (lib/idr.c:623)
[   12.830239][  T263]  netdev_upper_dev_link (net/core/dev.c:8972)
[   12.830382][  T263]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   12.830529][  T263] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   12.830681][  T263]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   12.830823][  T263]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   12.830967][  T263] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   12.831108][  T263]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   12.831253][  T263]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   12.831395][  T263]  ? __dev_get_by_name (net/core/dev.c:883)
[   12.831539][  T263]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   12.831692][  T263]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   12.831839][  T263]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.831984][  T263]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.832126][  T263]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.832266][  T263]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.832405][  T263]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.832551][  T263]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.832704][  T263]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.832846][  T263]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.832988][  T263]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.833132][  T263]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.833272][  T263]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.833411][  T263]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.833558][  T263]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.833702][  T263]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.833843][  T263]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.833984][  T263]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.834126][  T263]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.834271][  T263]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.834411][  T263]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.834562][  T263]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.834708][  T263]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.834849][  T263]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.834989][  T263]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.835132][  T263]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.835277][  T263]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.835419][  T263]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.835578][  T263]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.835724][  T263]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.835898][  T263]  ? move_addr_to_kernel (net/socket.c:258)
[   12.836043][  T263]  ___sys_sendmsg (net/socket.c:2752)
[   12.836183][  T263]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.836324][  T263]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.836478][  T263]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   12.836621][  T263]  __sys_sendmsg (net/socket.c:2784)
[   12.836767][  T263]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.836911][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.837052][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.837192][  T263]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.837334][  T263]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.837478][  T263]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.837619][  T263]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.837800][  T263] RIP: 0033:0x7fd597b8108e
[   12.837949][  T263] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.838448][  T263] RSP: 002b:00007ffee8e52a00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.838667][  T263] RAX: ffffffffffffffda RBX: 00007ffee8e531b8 RCX: 00007fd597b8108e
[   12.838876][  T263] RDX: 0000000000000000 RSI: 00007ffee8e52ab0 RDI: 0000000000000005
[   12.839085][  T263] RBP: 00007ffee8e52a10 R08: 0000000000000000 R09: 0000000000000000
[   12.839294][  T263] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac4
[   12.839507][  T263] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffee8e53170
| [   12.841148][  T263] ------------[ cut here ]------------
| [   12.841281][  T263] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/263
| [   12.841512][  T263] Modules linked in: ipvtap ipvlan
| [   12.841924][  T263] Tainted: [W]=WARN
[   12.842026][  T263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.842193][  T263] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.842367][  T263] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.842850][  T263] RSP: 0018:ffa00000009af1b0 EFLAGS: 00010286
[   12.843020][  T263] RAX: 00000000ffffffa6 RBX: ff1100000a132c80 RCX: 1ff4000000135dfc
[   12.843217][  T263] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a132d3c
[   12.843416][  T263] RBP: ff1100000d7fa000 R08: 1fe22000014265a9 R09: ff1100000e7c8b80
[   12.843619][  T263] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.843823][  T263] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   12.844023][  T263] FS:  00007fd597947840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   12.844255][  T263] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.844421][  T263] CR2: 0000000000445730 CR3: 000000000f6be002 CR4: 0000000000771ef0
[   12.844625][  T263] PKRU: 55555554
[   12.844731][  T263] Call Trace:
[   12.844830][  T263]  <TASK>
[   12.844899][  T263]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.845033][  T263]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.845134][  T263]  ? ida_destroy (lib/idr.c:623)
[   12.845269][  T263]  __dev_notify_flags (net/core/dev.c:9787)
[   12.845403][  T263]  ? netif_change_name (net/core/dev.c:1495)
[   12.845538][  T263]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.845681][  T263]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   12.845848][  T263]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   12.846013][  T263]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   12.846147][  T263]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   12.846285][  T263]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   12.846420][  T263]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   12.846556][  T263]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   12.846697][  T263]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   12.846830][  T263]  ? __dev_get_by_name (net/core/dev.c:883)
[   12.846962][  T263]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   12.847101][  T263]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   12.847239][  T263]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.847373][  T263]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.847509][  T263]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.847643][  T263]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.847782][  T263]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.847914][  T263]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.848052][  T263]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.848186][  T263]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.848320][  T263]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.848454][  T263]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.848594][  T263]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.848732][  T263]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.848868][  T263]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.849000][  T263]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.849133][  T263]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.849266][  T263]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.849401][  T263]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.849542][  T263]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.849681][  T263]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.849816][  T263]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.849951][  T263]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.850085][  T263]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.850220][  T263]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.850354][  T263]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.850494][  T263]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.850629][  T263]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.850765][  T263]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.850900][  T263]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.851065][  T263]  ? move_addr_to_kernel (net/socket.c:258)
[   12.851202][  T263]  ___sys_sendmsg (net/socket.c:2752)
[   12.851334][  T263]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.851473][  T263]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.851615][  T263]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   12.851757][  T263]  __sys_sendmsg (net/socket.c:2784)
[   12.851892][  T263]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.852028][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.852162][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.852297][  T263]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.852429][  T263]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.852567][  T263]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.852705][  T263]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.852874][  T263] RIP: 0033:0x7fd597b8108e
[   12.853013][  T263] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.853488][  T263] RSP: 002b:00007ffee8e52a00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.853694][  T263] RAX: ffffffffffffffda RBX: 00007ffee8e531b8 RCX: 00007fd597b8108e
[   12.853895][  T263] RDX: 0000000000000000 RSI: 00007ffee8e52ab0 RDI: 0000000000000005
[   12.854093][  T263] RBP: 00007ffee8e52a10 R08: 0000000000000000 R09: 0000000000000000
[   12.854293][  T263] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac4
[   12.854496][  T263] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffee8e53170
| [   12.904966][  T265] ------------[ cut here ]------------
| [   12.905181][  T265] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/265
| [   12.905469][  T265] Modules linked in: ipvtap ipvlan
| [   12.905996][  T265] Tainted: [W]=WARN
[   12.906145][  T265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.906364][  T265] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.906597][  T265] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.907137][  T265] RSP: 0018:ffa0000000807a80 EFLAGS: 00010286
[   12.907353][  T265] RAX: 00000000ffffffa6 RBX: ff1100000d4e9000 RCX: 1ff4000000100f16
[   12.907609][  T265] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d4e90bc
[   12.907869][  T265] RBP: ff1100000e97c000 R08: 1fe2200001a9d219 R09: ff1100000fdf2e80
[   12.908132][  T265] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.908379][  T265] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e97c000
[   12.908636][  T265] FS:  00007f4f7b63d840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   12.908935][  T265] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.909151][  T265] CR2: 00007f4f7b83ec20 CR3: 000000000cf80006 CR4: 0000000000771ef0
[   12.909401][  T265] PKRU: 55555554
[   12.909557][  T265] Call Trace:
[   12.909719][  T265]  <TASK>
[   12.909835][  T265]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.910019][  T265]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.910206][  T265]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.910361][  T265]  register_netdevice (net/core/dev.c:11488)
[   12.910554][  T265]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.910783][  T265]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.910968][  T265]  register_netdev (net/core/dev.c:11552)
[   12.911151][  T265]  loopback_net_init (drivers/net/loopback.c:218)
[   12.911335][  T265]  ops_init (net/core/net_namespace.c:137)
[   12.911495][  T265]  setup_net (net/core/net_namespace.c:446)
[   12.911645][  T265]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.911839][  T265]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.912022][  T265]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.912206][  T265]  copy_net_ns (net/core/net_namespace.c:579)
[   12.912391][  T265]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.912586][  T265]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.912780][  T265]  ksys_unshare (kernel/fork.c:3243)
[   12.912962][  T265]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.913143][  T265]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.913325][  T265]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.913519][  T265]  ? __ia32_sys_open (fs/open.c:1374)
[   12.913715][  T265]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.913897][  T265]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.914075][  T265]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.914255][  T265]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.914434][  T265]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.914624][  T265]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.914850][  T265] RIP: 0033:0x7f4f7b8ffbcb
[   12.915039][  T265] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.915563][  T265] RSP: 002b:00007ffed9f51b88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.915823][  T265] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4f7b8ffbcb
[   12.916070][  T265] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.916313][  T265] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.916564][  T265] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed9f53db0
[   12.916823][  T265] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed9f5587f
| [   12.921475][  T265] ------------[ cut here ]------------
| [   12.921672][  T265] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/265
| [   12.921946][  T265] Modules linked in: ipvtap ipvlan
| [   12.922445][  T265] Tainted: [W]=WARN
[   12.922602][  T265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.922827][  T265] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.923048][  T265] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.923575][  T265] RSP: 0018:ffa0000000807918 EFLAGS: 00010286
[   12.923801][  T265] RAX: 00000000ffffffa6 RBX: ff1100000c67aac0 RCX: 1ff4000000100ee9
[   12.924047][  T265] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c67ab7c
[   12.924296][  T265] RBP: ff1100000f571000 R08: 1fe22000018cf571 R09: ff1100000fdf2e80
[   12.924550][  T265] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.924804][  T265] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f571000
[   12.925050][  T265] FS:  00007f4f7b63d840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   12.925346][  T265] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.925571][  T265] CR2: 00007f4f7b83ec20 CR3: 000000000cf80006 CR4: 0000000000771ef0
[   12.925833][  T265] PKRU: 55555554
[   12.925999][  T265] Call Trace:
[   12.926200][  T265]  <TASK>
[   12.926357][  T265]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.926585][  T265]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.926782][  T265]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.926933][  T265]  register_netdevice (net/core/dev.c:11488)
[   12.927115][  T265]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.927334][  T265]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.927585][  T265]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.927788][  T265]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.928014][  T265]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.928266][  T265]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.928527][  T265]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.928799][  T265]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   12.929049][  T265]  ops_init (net/core/net_namespace.c:137)
[   12.929211][  T265]  setup_net (net/core/net_namespace.c:446)
[   12.929409][  T265]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.929634][  T265]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.929830][  T265]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.930017][  T265]  copy_net_ns (net/core/net_namespace.c:579)
[   12.930199][  T265]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.930384][  T265]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.930573][  T265]  ksys_unshare (kernel/fork.c:3243)
[   12.930768][  T265]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.930947][  T265]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.931128][  T265]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.931316][  T265]  ? __ia32_sys_open (fs/open.c:1374)
[   12.931571][  T265]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.931794][  T265]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.931974][  T265]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.932155][  T265]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.932336][  T265]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.932527][  T265]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.932754][  T265] RIP: 0033:0x7f4f7b8ffbcb
[   12.932942][  T265] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.933455][  T265] RSP: 002b:00007ffed9f51b88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.933789][  T265] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4f7b8ffbcb
[   12.934067][  T265] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.934311][  T265] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.934567][  T265] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed9f53db0
[   12.934826][  T265] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed9f5587f
| [   12.941989][  T265] ------------[ cut here ]------------
| [   12.942180][  T265] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/265
| [   12.942470][  T265] Modules linked in: ipvtap ipvlan
| [   12.943717][  T265] Tainted: [W]=WARN
[   12.943929][  T265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.944200][  T265] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.944491][  T265] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.945091][  T265] RSP: 0018:ffa00000008078f8 EFLAGS: 00010286
[   12.945362][  T265] RAX: 00000000ffffffa6 RBX: ff11000006218740 RCX: 1ff4000000100ee5
[   12.945689][  T265] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000062187fc
[   12.945997][  T265] RBP: ff1100000e401000 R08: 1fe2200000c43101 R09: ff1100000fdf2e80
[   12.946300][  T265] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.946612][  T265] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e401000
[   12.946935][  T265] FS:  00007f4f7b63d840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   12.947277][  T265] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.947556][  T265] CR2: 00007f4f7b83ec20 CR3: 000000000cf80006 CR4: 0000000000771ef0
[   12.947878][  T265] PKRU: 55555554
[   12.948079][  T265] Call Trace:
[   12.948280][  T265]  <TASK>
[   12.948452][  T265]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.948712][  T265]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.948954][  T265]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.949161][  T265]  register_netdevice (net/core/dev.c:11488)
[   12.949401][  T265]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.949701][  T265]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.949947][  T265]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.950183][  T265]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.950422][  T265]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.950689][  T265]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.950928][  T265]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.951168][  T265]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   12.951405][  T265]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.951673][  T265]  vti_init_net (net/ipv4/ip_vti.c:517)
[   12.951915][  T265]  ops_init (net/core/net_namespace.c:137)
[   12.952120][  T265]  setup_net (net/core/net_namespace.c:446)
[   12.952325][  T265]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.952575][  T265]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.952882][  T265]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.953235][  T265]  copy_net_ns (net/core/net_namespace.c:579)
[   12.953599][  T265]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.953958][  T265]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.954209][  T265]  ksys_unshare (kernel/fork.c:3243)
[   12.954445][  T265]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.954711][  T265]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.954949][  T265]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.955186][  T265]  ? __ia32_sys_open (fs/open.c:1374)
[   12.955425][  T265]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.955683][  T265]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.955922][  T265]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.956159][  T265]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.956394][  T265]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.956647][  T265]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.956984][  T265] RIP: 0033:0x7f4f7b8ffbcb
[   12.957252][  T265] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.957849][  T265] RSP: 002b:00007ffed9f51b88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.958156][  T265] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4f7b8ffbcb
[   12.958459][  T265] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.958786][  T265] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.959090][  T265] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed9f53db0
[   12.959398][  T265] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed9f5587f
| [   12.970998][  T265] ------------[ cut here ]------------
| [   12.971182][  T265] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/265
| [   12.971459][  T265] Modules linked in: ipvtap ipvlan
| [   12.972018][  T265] Tainted: [W]=WARN
[   12.972164][  T265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.972376][  T265] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.972609][  T265] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.973135][  T265] RSP: 0018:ffa0000000807a78 EFLAGS: 00010286
[   12.973354][  T265] RAX: 00000000ffffffa6 RBX: ff11000009a7da80 RCX: 1ff4000000100f15
[   12.973606][  T265] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a7db3c
[   12.973862][  T265] RBP: ff110000105b4000 R08: 1fe220000134fb69 R09: ff1100000fdf2e80
[   12.974111][  T265] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.974359][  T265] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000105b4000
[   12.974610][  T265] FS:  00007f4f7b63d840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   12.974902][  T265] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.975119][  T265] CR2: 00007f4f7b83ec20 CR3: 000000000cf80006 CR4: 0000000000771ef0
[   12.975365][  T265] PKRU: 55555554
[   12.975523][  T265] Call Trace:
[   12.975683][  T265]  <TASK>
[   12.975800][  T265]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.975984][  T265]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.976166][  T265]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.976315][  T265]  register_netdevice (net/core/dev.c:11488)
[   12.976505][  T265]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.976731][  T265]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.976917][  T265]  register_netdev (net/core/dev.c:11552)
[   12.977097][  T265]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   12.977294][  T265]  ops_init (net/core/net_namespace.c:137)
[   12.977504][  T265]  setup_net (net/core/net_namespace.c:446)
[   12.977722][  T265]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.977914][  T265]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.978095][  T265]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.978280][  T265]  copy_net_ns (net/core/net_namespace.c:579)
[   12.978471][  T265]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.978669][  T265]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.978851][  T265]  ksys_unshare (kernel/fork.c:3243)
[   12.979030][  T265]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.979211][  T265]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.979391][  T265]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.979584][  T265]  ? __ia32_sys_open (fs/open.c:1374)
[   12.979784][  T265]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.979963][  T265]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.980143][  T265]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.980334][  T265]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.980522][  T265]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.980721][  T265]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.981015][  T265] RIP: 0033:0x7f4f7b8ffbcb
[   12.981285][  T265] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.982021][  T265] RSP: 002b:00007ffed9f51b88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.982270][  T265] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4f7b8ffbcb
[   12.982527][  T265] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.982783][  T265] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.983028][  T265] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed9f53db0
[   12.983270][  T265] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed9f5587f
| [   12.987937][  T265] ------------[ cut here ]------------
| [   12.988122][  T265] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/265
| [   12.988404][  T265] Modules linked in: ipvtap ipvlan
| [   12.988931][  T265] Tainted: [W]=WARN
[   12.989079][  T265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.989292][  T265] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.989520][  T265] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.990048][  T265] RSP: 0018:ffa0000000807a68 EFLAGS: 00010286
[   12.990264][  T265] RAX: 00000000ffffffa6 RBX: ff110000104cb000 RCX: 1ff4000000100f13
[   12.990519][  T265] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104cb0bc
[   12.990780][  T265] RBP: ff1100000ffd1000 R08: 1fe2200002099619 R09: ff1100000fdf2e80
[   12.991023][  T265] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.991268][  T265] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ffd1000
[   12.991525][  T265] FS:  00007f4f7b63d840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   12.991818][  T265] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.992033][  T265] CR2: 00007f4f7b83ec20 CR3: 000000000cf80006 CR4: 0000000000771ef0
[   12.992278][  T265] PKRU: 55555554
[   12.992425][  T265] Call Trace:
[   12.992580][  T265]  <TASK>
[   12.992705][  T265]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.992888][  T265]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.993071][  T265]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.993220][  T265]  register_netdevice (net/core/dev.c:11488)
[   12.993402][  T265]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.993628][  T265]  register_netdev (net/core/dev.c:11552)
[   12.993822][  T265]  sit_init_net (net/ipv6/sit.c:1860)
[   12.994005][  T265]  ops_init (net/core/net_namespace.c:137)
[   12.994156][  T265]  setup_net (net/core/net_namespace.c:446)
[   12.994307][  T265]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.994494][  T265]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.994689][  T265]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.994872][  T265]  copy_net_ns (net/core/net_namespace.c:579)
[   12.995056][  T265]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.995239][  T265]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.995421][  T265]  ksys_unshare (kernel/fork.c:3243)
[   12.995614][  T265]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.995805][  T265]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.995986][  T265]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.996168][  T265]  ? __ia32_sys_open (fs/open.c:1374)
[   12.996349][  T265]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.996538][  T265]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.996732][  T265]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.996913][  T265]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.997098][  T265]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.997281][  T265]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.997501][  T265] RIP: 0033:0x7f4f7b8ffbcb
[   12.997703][  T265] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.998220][  T265] RSP: 002b:00007ffed9f51b88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.998474][  T265] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4f7b8ffbcb
[   12.998732][  T265] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.998976][  T265] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.999221][  T265] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed9f53db0
[   12.999472][  T265] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed9f5587f
| [   13.004752][  T265] ------------[ cut here ]------------
| [   13.004937][  T265] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/265
| [   13.005217][  T265] Modules linked in: ipvtap ipvlan
| [   13.005756][  T265] Tainted: [W]=WARN
[   13.005905][  T265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.006126][  T265] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.006348][  T265] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.006892][  T265] RSP: 0018:ffa0000000807a78 EFLAGS: 00010286
[   13.007115][  T265] RAX: 00000000ffffffa6 RBX: ff1100000c102200 RCX: 1ff4000000100f15
[   13.007442][  T265] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c1022bc
[   13.007741][  T265] RBP: ff11000012a84000 R08: 1fe2200001820459 R09: ff1100000fdf2e80
[   13.007988][  T265] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.008235][  T265] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012a84000
[   13.008496][  T265] FS:  00007f4f7b63d840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   13.008808][  T265] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.009032][  T265] CR2: 00007f4f7b83ec20 CR3: 000000000cf80006 CR4: 0000000000771ef0
[   13.009280][  T265] PKRU: 55555554
[   13.009426][  T265] Call Trace:
[   13.009579][  T265]  <TASK>
[   13.009705][  T265]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.009888][  T265]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.010070][  T265]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.010221][  T265]  register_netdevice (net/core/dev.c:11488)
[   13.010403][  T265]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.010625][  T265]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.010830][  T265]  register_netdev (net/core/dev.c:11552)
[   13.011013][  T265]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   13.011197][  T265]  ops_init (net/core/net_namespace.c:137)
[   13.011346][  T265]  setup_net (net/core/net_namespace.c:446)
[   13.011506][  T265]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.011700][  T265]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.011883][  T265]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.012072][  T265]  copy_net_ns (net/core/net_namespace.c:579)
[   13.012259][  T265]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.012446][  T265]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.012639][  T265]  ksys_unshare (kernel/fork.c:3243)
[   13.012836][  T265]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.013017][  T265]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.013199][  T265]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.013386][  T265]  ? __ia32_sys_open (fs/open.c:1374)
[   13.013577][  T265]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.013768][  T265]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.013949][  T265]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.014130][  T265]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.014311][  T265]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.014502][  T265]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.014728][  T265] RIP: 0033:0x7f4f7b8ffbcb
[   13.014918][  T265] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.015436][  T265] RSP: 002b:00007ffed9f51b88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.015703][  T265] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4f7b8ffbcb
[   13.015950][  T265] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.016196][  T265] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.016442][  T265] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed9f53db0
[   13.016705][  T265] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed9f5587f
| [   13.044969][  T266] ------------[ cut here ]------------
| [   13.045128][  T266] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/266
| [   13.045361][  T266] Modules linked in: ipvtap ipvlan
| [   13.045785][  T266] Tainted: [W]=WARN
[   13.045889][  T266] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.046055][  T266] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.046227][  T266] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.046711][  T266] RSP: 0018:ffa00000008a7020 EFLAGS: 00010286
[   13.046880][  T266] RAX: 00000000ffffffa6 RBX: ff110000107a98c0 RCX: 1ff4000000114dca
[   13.047080][  T266] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000107a997c
[   13.047279][  T266] RBP: ff1100000e97c000 R08: 1fe22000020f5331 R09: ff1100000e6d0b58
[   13.047484][  T266] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   13.047689][  T266] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   13.047899][  T266] FS:  00007f6dc734b840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   13.048132][  T266] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.048299][  T266] CR2: 000000002714d988 CR3: 0000000004bd2001 CR4: 0000000000771ef0
[   13.048504][  T266] PKRU: 55555554
[   13.048604][  T266] Call Trace:
[   13.048711][  T266]  <TASK>
[   13.048780][  T266]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.048915][  T266]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.049018][  T266]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   13.049153][  T266]  __dev_notify_flags (net/core/dev.c:9787)
[   13.049288][  T266]  ? netif_change_name (net/core/dev.c:1495)
[   13.049421][  T266]  ? __dev_change_flags (net/core/dev.c:9752)
[   13.049563][  T266]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   13.049702][  T266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.049838][  T266]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   13.049974][  T266]  netif_change_flags (net/core/dev.c:9820)
[   13.050110][  T266]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   13.050259][  T266]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   13.050396][  T266]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   13.050534][  T266]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   13.050705][  T266]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.050837][  T266]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.050969][  T266]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.051100][  T266]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.051241][  T266]  ? __kernel_text_address (kernel/extable.c:79)
[   13.051375][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.051512][  T266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.051643][  T266]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.051859][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.051992][  T266]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.052130][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.052262][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.052395][  T266]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   13.052532][  T266]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   13.052739][  T266]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   13.052872][  T266]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.053012][  T266]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   13.053153][  T266]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   13.053287][  T266]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.053420][  T266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.053560][  T266]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.053767][  T266]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.053976][  T266]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.054120][  T266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.054255][  T266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.054386][  T266]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.054526][  T266]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.054724][  T266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.054861][  T266]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.054993][  T266]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.055131][  T266]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.055262][  T266]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.055394][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.055534][  T266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.055698][  T266]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.055835][  T266]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.055974][  T266]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.056105][  T266]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.056240][  T266]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.056372][  T266]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.056509][  T266]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.056643][  T266]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.056781][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.056926][  T266]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.057060][  T266]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.057193][  T266]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.057327][  T266]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.057465][  T266]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.057597][  T266]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.057771][  T266]  ? move_addr_to_kernel (net/socket.c:258)
[   13.057905][  T266]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.058039][  T266]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.058173][  T266]  ___sys_sendmsg (net/socket.c:2752)
[   13.058304][  T266]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   13.058473][  T266]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.058624][  T266]  __sys_sendmsg (net/socket.c:2784)
[   13.058762][  T266]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.058896][  T266]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   13.059063][  T266]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.059196][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.059330][  T266]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.059472][  T266]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.059605][  T266]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.059743][  T266]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.059907][  T266] RIP: 0033:0x7f6dc758508e
[   13.060045][  T266] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.060527][  T266] RSP: 002b:00007ffe5274b5a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.060731][  T266] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f6dc758508e
[   13.060928][  T266] RDX: 0000000000000000 RSI: 00007ffe5274b650 RDI: 0000000000000005
[   13.061124][  T266] RBP: 00007ffe5274b5b0 R08: 0000000000000000 R09: 0000000000000000
[   13.061326][  T266] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac4
[   13.061528][  T266] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe5274bd20
| [   13.188589][  T269] ------------[ cut here ]------------
| [   13.188778][  T269] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/269
| [   13.189026][  T269] Modules linked in: ipvtap ipvlan
| [   13.189455][  T269] Tainted: [W]=WARN
[   13.189567][  T269] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.190307][  T269] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.190594][  T269] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.191189][  T269] RSP: 0018:ffa00000009df0b0 EFLAGS: 00010286
[   13.191365][  T269] RAX: 00000000ffffffa6 RBX: ff11000005f183c0 RCX: 1ff400000013bddc
[   13.191580][  T269] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005f1847c
[   13.191869][  T269] RBP: ff11000007edc000 R08: 1fe2200000be3091 R09: ff1100000f3a2e80
[   13.192077][  T269] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   13.192283][  T269] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   13.192498][  T269] FS:  00007f4c1f800840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   13.192825][  T269] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.192998][  T269] CR2: 0000000000445730 CR3: 000000000e80d004 CR4: 0000000000771ef0
[   13.193206][  T269] PKRU: 55555554
[   13.193310][  T269] Call Trace:
[   13.193413][  T269]  <TASK>
[   13.193492][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.193632][  T269]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   13.193782][  T269]  notifier_call_chain (kernel/notifier.c:85)
[   13.193923][  T269]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   13.194062][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.194200][  T269]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   13.194338][  T269]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   13.194444][  T269]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   13.194627][  T269]  ? ida_destroy (lib/idr.c:623)
[   13.194772][  T269]  netdev_upper_dev_link (net/core/dev.c:8972)
[   13.194911][  T269]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   13.195050][  T269] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   13.195192][  T269]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   13.195330][  T269]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   13.195475][  T269] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   13.195615][  T269]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   13.195760][  T269]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   13.195899][  T269]  ? __dev_get_by_name (net/core/dev.c:883)
[   13.196037][  T269]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   13.196181][  T269]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   13.196325][  T269]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.196469][  T269]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.196608][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.196754][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.196892][  T269]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.197030][  T269]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.197173][  T269]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.197313][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.197452][  T269]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.197598][  T269]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.197741][  T269]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.197880][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.198021][  T269]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.198159][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.198299][  T269]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.198437][  T269]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.198577][  T269]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.198727][  T269]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.198865][  T269]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.199005][  T269]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.199147][  T269]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.199286][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.199425][  T269]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.199570][  T269]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.199716][  T269]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.199860][  T269]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.200000][  T269]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.200139][  T269]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.200311][  T269]  ? move_addr_to_kernel (net/socket.c:258)
[   13.200454][  T269]  ___sys_sendmsg (net/socket.c:2752)
[   13.200598][  T269]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.200748][  T269]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.200898][  T269]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   13.201039][  T269]  __sys_sendmsg (net/socket.c:2784)
[   13.201179][  T269]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.201324][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.201467][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.201608][  T269]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.201753][  T269]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.201895][  T269]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.202033][  T269]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.202206][  T269] RIP: 0033:0x7f4c1fa3a08e
[   13.202352][  T269] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.202855][  T269] RSP: 002b:00007fffd985bf30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.203065][  T269] RAX: ffffffffffffffda RBX: 00007fffd985c6e8 RCX: 00007f4c1fa3a08e
[   13.203277][  T269] RDX: 0000000000000000 RSI: 00007fffd985bfe0 RDI: 0000000000000005
[   13.203491][  T269] RBP: 00007fffd985bf40 R08: 0000000000000000 R09: 0000000000000000
[   13.203704][  T269] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac4
[   13.203911][  T269] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffd985c6a0
| [   13.205598][  T269] ------------[ cut here ]------------
| [   13.205761][  T269] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/269
| [   13.205992][  T269] Modules linked in: ipvtap ipvlan
| [   13.206396][  T269] Tainted: [W]=WARN
[   13.206502][  T269] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.206687][  T269] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.206860][  T269] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.207333][  T269] RSP: 0018:ffa00000009df1b0 EFLAGS: 00010286
[   13.207506][  T269] RAX: 00000000ffffffa6 RBX: ff11000005f18c80 RCX: 1ff400000013bdfc
[   13.207712][  T269] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005f18d3c
[   13.207908][  T269] RBP: ff1100000f2a2000 R08: 1fe2200000be31a9 R09: ff1100000f3a2e80
[   13.208106][  T269] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.208306][  T269] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   13.208519][  T269] FS:  00007f4c1f800840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   13.208763][  T269] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.208930][  T269] CR2: 00007f0ada3db2a0 CR3: 000000000e80d003 CR4: 0000000000771ef0
[   13.209130][  T269] PKRU: 55555554
[   13.209229][  T269] Call Trace:
[   13.209329][  T269]  <TASK>
[   13.209398][  T269]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.209539][  T269]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.209640][  T269]  ? ida_destroy (lib/idr.c:623)
[   13.209781][  T269]  __dev_notify_flags (net/core/dev.c:9787)
[   13.209921][  T269]  ? netif_change_name (net/core/dev.c:1495)
[   13.210055][  T269]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.210188][  T269]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   13.210358][  T269]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   13.210527][  T269]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   13.210666][  T269]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   13.210801][  T269]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   13.210934][  T269]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   13.211068][  T269]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   13.211203][  T269]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   13.211337][  T269]  ? __dev_get_by_name (net/core/dev.c:883)
[   13.211475][  T269]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   13.211613][  T269]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   13.211758][  T269]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.211893][  T269]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.212025][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.212158][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.212290][  T269]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.212422][  T269]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.212563][  T269]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.212701][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.212834][  T269]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.212967][  T269]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.213099][  T269]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.213230][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.213366][  T269]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.213503][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.213637][  T269]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.213775][  T269]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.213909][  T269]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.214048][  T269]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.214179][  T269]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.214317][  T269]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.214451][  T269]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.214591][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.214731][  T269]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.214865][  T269]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.214999][  T269]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.215132][  T269]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.215265][  T269]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.215400][  T269]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.215568][  T269]  ? move_addr_to_kernel (net/socket.c:258)
[   13.215712][  T269]  ___sys_sendmsg (net/socket.c:2752)
[   13.215844][  T269]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.215976][  T269]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.216118][  T269]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   13.216253][  T269]  __sys_sendmsg (net/socket.c:2784)
[   13.216386][  T269]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.216531][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.216672][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.216805][  T269]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.216939][  T269]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.217073][  T269]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.217205][  T269]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.217371][  T269] RIP: 0033:0x7f4c1fa3a08e
[   13.217514][  T269] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.217996][  T269] RSP: 002b:00007fffd985bf30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.218195][  T269] RAX: ffffffffffffffda RBX: 00007fffd985c6e8 RCX: 00007f4c1fa3a08e
[   13.218396][  T269] RDX: 0000000000000000 RSI: 00007fffd985bfe0 RDI: 0000000000000005
[   13.218600][  T269] RBP: 00007fffd985bf40 R08: 0000000000000000 R09: 0000000000000000
[   13.218806][  T269] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac4
[   13.219004][  T269] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffd985c6a0
| [   13.275072][  T271] ------------[ cut here ]------------
| [   13.275265][  T271] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/271
| [   13.275564][  T271] Modules linked in: ipvtap ipvlan
| [   13.276096][  T271] Tainted: [W]=WARN
[   13.276244][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.276471][  T271] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.276713][  T271] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.277237][  T271] RSP: 0018:ffa0000000a17a80 EFLAGS: 00010286
[   13.277455][  T271] RAX: 00000000ffffffa6 RBX: ff1100000b431540 RCX: 1ff4000000142f16
[   13.277787][  T271] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b4315fc
[   13.278094][  T271] RBP: ff11000008b61000 R08: 1fe22000016862c1 R09: ff1100000e7d5180
[   13.278341][  T271] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.278602][  T271] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b61000
[   13.278868][  T271] FS:  00007f0b68b62840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   13.279155][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.279370][  T271] CR2: 00007f0b68d69430 CR3: 0000000004bcf006 CR4: 0000000000771ef0
[   13.279628][  T271] PKRU: 55555554
[   13.279787][  T271] Call Trace:
[   13.279933][  T271]  <TASK>
[   13.280050][  T271]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.280235][  T271]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.280418][  T271]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.280578][  T271]  register_netdevice (net/core/dev.c:11488)
[   13.280774][  T271]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.280991][  T271]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.281173][  T271]  register_netdev (net/core/dev.c:11552)
[   13.281354][  T271]  loopback_net_init (drivers/net/loopback.c:218)
[   13.281546][  T271]  ops_init (net/core/net_namespace.c:137)
[   13.281707][  T271]  setup_net (net/core/net_namespace.c:446)
[   13.281857][  T271]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.282035][  T271]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.282217][  T271]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.282411][  T271]  copy_net_ns (net/core/net_namespace.c:579)
[   13.282606][  T271]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.282806][  T271]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.282988][  T271]  ksys_unshare (kernel/fork.c:3243)
[   13.283172][  T271]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.283353][  T271]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.283543][  T271]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.283738][  T271]  ? __ia32_sys_open (fs/open.c:1374)
[   13.283921][  T271]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.284100][  T271]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.284280][  T271]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.284472][  T271]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.284667][  T271]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.284848][  T271]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.285059][  T271] RIP: 0033:0x7f0b68e24bcb
[   13.285244][  T271] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.285787][  T271] RSP: 002b:00007fffbbcc69d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.286034][  T271] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0b68e24bcb
[   13.286279][  T271] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.286531][  T271] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.286793][  T271] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffbbcc8c00
[   13.287037][  T271] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffbbcca87f
| [   13.291393][  T271] ------------[ cut here ]------------
| [   13.291575][  T271] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/271
| [   13.291862][  T271] Modules linked in: ipvtap ipvlan
| [   13.292358][  T271] Tainted: [W]=WARN
[   13.292510][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.292736][  T271] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.292956][  T271] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.293474][  T271] RSP: 0018:ffa0000000a17918 EFLAGS: 00010286
[   13.294227][  T271] RAX: 00000000ffffffa6 RBX: ff11000005f18200 RCX: 1ff4000000142ee9
[   13.294533][  T271] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005f182bc
[   13.294846][  T271] RBP: ff110000087a1000 R08: 1fe2200000be3059 R09: ff1100000e7d5180
[   13.295144][  T271] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.295444][  T271] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000087a1000
[   13.295763][  T271] FS:  00007f0b68b62840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   13.296094][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.296372][  T271] CR2: 00007f0b68d69430 CR3: 0000000004bcf006 CR4: 0000000000771ef0
[   13.296696][  T271] PKRU: 55555554
[   13.296897][  T271] Call Trace:
[   13.297096][  T271]  <TASK>
[   13.297265][  T271]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.297505][  T271]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.297754][  T271]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.297957][  T271]  register_netdevice (net/core/dev.c:11488)
[   13.298191][  T271]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.298458][  T271]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.298716][  T271]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   13.298949][  T271]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   13.299183][  T271]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   13.299417][  T271]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   13.299677][  T271]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   13.299916][  T271]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   13.300151][  T271]  ops_init (net/core/net_namespace.c:137)
[   13.300356][  T271]  setup_net (net/core/net_namespace.c:446)
[   13.300554][  T271]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.300747][  T271]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.300928][  T271]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.301110][  T271]  copy_net_ns (net/core/net_namespace.c:579)
[   13.301291][  T271]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.301480][  T271]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.301678][  T271]  ksys_unshare (kernel/fork.c:3243)
[   13.301857][  T271]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.302037][  T271]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.302216][  T271]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.302397][  T271]  ? __ia32_sys_open (fs/open.c:1374)
[   13.302586][  T271]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.302780][  T271]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.302962][  T271]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.303142][  T271]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.303321][  T271]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.303509][  T271]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.303734][  T271] RIP: 0033:0x7f0b68e24bcb
[   13.303918][  T271] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.304430][  T271] RSP: 002b:00007fffbbcc69d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.304696][  T271] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0b68e24bcb
[   13.304940][  T271] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.305184][  T271] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.305429][  T271] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffbbcc8c00
[   13.305686][  T271] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffbbcca87f
| [   13.318386][  T271] ------------[ cut here ]------------
| [   13.318574][  T271] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/271
| [   13.318866][  T271] Modules linked in: ipvtap ipvlan
| [   13.319367][  T271] Tainted: [W]=WARN
[   13.319527][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.319757][  T271] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.319981][  T271] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.320521][  T271] RSP: 0018:ffa0000000a178f8 EFLAGS: 00010286
[   13.320757][  T271] RAX: 00000000ffffffa6 RBX: ff1100000c1031c0 RCX: 1ff4000000142ee5
[   13.321012][  T271] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c10327c
[   13.321265][  T271] RBP: ff11000012b34000 R08: 1fe2200001820651 R09: ff1100000e7d5180
[   13.321525][  T271] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.321791][  T271] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012b34000
[   13.322043][  T271] FS:  00007f0b68b62840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   13.322323][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.322546][  T271] CR2: 00007f0b68d69430 CR3: 0000000004bcf006 CR4: 0000000000771ef0
[   13.322807][  T271] PKRU: 55555554
[   13.322955][  T271] Call Trace:
[   13.323103][  T271]  <TASK>
[   13.323222][  T271]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.323406][  T271]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.323600][  T271]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.323765][  T271]  register_netdevice (net/core/dev.c:11488)
[   13.323954][  T271]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.324169][  T271]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.324351][  T271]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   13.324542][  T271]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   13.324735][  T271]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   13.324920][  T271]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   13.325103][  T271]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   13.325288][  T271]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   13.325481][  T271]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   13.325680][  T271]  vti_init_net (net/ipv4/ip_vti.c:517)
[   13.325864][  T271]  ops_init (net/core/net_namespace.c:137)
[   13.326014][  T271]  setup_net (net/core/net_namespace.c:446)
[   13.326164][  T271]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.326345][  T271]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.326535][  T271]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.326733][  T271]  copy_net_ns (net/core/net_namespace.c:579)
[   13.326917][  T271]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.327100][  T271]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.327282][  T271]  ksys_unshare (kernel/fork.c:3243)
[   13.327470][  T271]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.327663][  T271]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.327844][  T271]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.328027][  T271]  ? __ia32_sys_open (fs/open.c:1374)
[   13.328209][  T271]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.328389][  T271]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.328575][  T271]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.328770][  T271]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.328949][  T271]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.329132][  T271]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.329344][  T271] RIP: 0033:0x7f0b68e24bcb
[   13.329542][  T271] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.330067][  T271] RSP: 002b:00007fffbbcc69d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.330314][  T271] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0b68e24bcb
[   13.330569][  T271] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.330825][  T271] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.331068][  T271] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffbbcc8c00
[   13.331313][  T271] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffbbcca87f
| [   13.335840][  T271] ------------[ cut here ]------------
| [   13.336017][  T271] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/271
| [   13.336291][  T271] Modules linked in: ipvtap ipvlan
| [   13.336801][  T271] Tainted: [W]=WARN
[   13.336946][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.337155][  T271] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.337385][  T271] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.337914][  T271] RSP: 0018:ffa0000000a17a78 EFLAGS: 00010286
[   13.338125][  T271] RAX: 00000000ffffffa6 RBX: ff1100000c102e40 RCX: 1ff4000000142f15
[   13.338366][  T271] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c102efc
[   13.338618][  T271] RBP: ff1100000f16c000 R08: 1fe22000018205e1 R09: ff1100000e7d5180
[   13.338868][  T271] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.339107][  T271] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f16c000
[   13.339350][  T271] FS:  00007f0b68b62840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   13.339643][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.339873][  T271] CR2: 00007f0b68d69430 CR3: 0000000004bcf006 CR4: 0000000000771ef0
[   13.340121][  T271] PKRU: 55555554
[   13.340267][  T271] Call Trace:
[   13.340415][  T271]  <TASK>
[   13.340540][  T271]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.340734][  T271]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.340920][  T271]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.341070][  T271]  register_netdevice (net/core/dev.c:11488)
[   13.341251][  T271]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.341472][  T271]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.341669][  T271]  register_netdev (net/core/dev.c:11552)
[   13.341851][  T271]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   13.342034][  T271]  ops_init (net/core/net_namespace.c:137)
[   13.342187][  T271]  setup_net (net/core/net_namespace.c:446)
[   13.342336][  T271]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.342523][  T271]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.342718][  T271]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.342900][  T271]  copy_net_ns (net/core/net_namespace.c:579)
[   13.343085][  T271]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.343269][  T271]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.343453][  T271]  ksys_unshare (kernel/fork.c:3243)
[   13.343644][  T271]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.343839][  T271]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.344020][  T271]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.344202][  T271]  ? __ia32_sys_open (fs/open.c:1374)
[   13.344383][  T271]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.344570][  T271]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.344765][  T271]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.344947][  T271]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.345129][  T271]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.345310][  T271]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.345534][  T271] RIP: 0033:0x7f0b68e24bcb
[   13.345736][  T271] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.346259][  T271] RSP: 002b:00007fffbbcc69d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.346519][  T271] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0b68e24bcb
[   13.346783][  T271] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.347026][  T271] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.347270][  T271] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffbbcc8c00
[   13.347521][  T271] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffbbcca87f
| [   13.352161][  T271] ------------[ cut here ]------------
| [   13.352342][  T271] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/271
| [   13.352628][  T271] Modules linked in: ipvtap ipvlan
| [   13.353142][  T271] Tainted: [W]=WARN
[   13.353290][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.353510][  T271] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.353738][  T271] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.354261][  T271] RSP: 0018:ffa0000000a17a68 EFLAGS: 00010286
[   13.354481][  T271] RAX: 00000000ffffffa6 RBX: ff1100000b430740 RCX: 1ff4000000142f13
[   13.354734][  T271] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b4307fc
[   13.354976][  T271] RBP: ff1100000e889000 R08: 1fe2200001686101 R09: ff1100000e7d5180
[   13.355219][  T271] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.355472][  T271] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e889000
[   13.355731][  T271] FS:  00007f0b68b62840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   13.356007][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.356219][  T271] CR2: 00007f0b68d69430 CR3: 0000000004bcf006 CR4: 0000000000771ef0
[   13.356475][  T271] PKRU: 55555554
[   13.356621][  T271] Call Trace:
[   13.356780][  T271]  <TASK>
[   13.356897][  T271]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.357079][  T271]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.357261][  T271]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.357410][  T271]  register_netdevice (net/core/dev.c:11488)
[   13.357600][  T271]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.357830][  T271]  register_netdev (net/core/dev.c:11552)
[   13.358010][  T271]  sit_init_net (net/ipv6/sit.c:1860)
[   13.358191][  T271]  ops_init (net/core/net_namespace.c:137)
[   13.358340][  T271]  setup_net (net/core/net_namespace.c:446)
[   13.358493][  T271]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.358685][  T271]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.358867][  T271]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.359055][  T271]  copy_net_ns (net/core/net_namespace.c:579)
[   13.359236][  T271]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.359418][  T271]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.359610][  T271]  ksys_unshare (kernel/fork.c:3243)
[   13.359806][  T271]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.359984][  T271]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.360163][  T271]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.360345][  T271]  ? __ia32_sys_open (fs/open.c:1374)
[   13.360535][  T271]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.360730][  T271]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.360909][  T271]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.361090][  T271]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.361270][  T271]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.361450][  T271]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.361680][  T271] RIP: 0033:0x7f0b68e24bcb
[   13.361864][  T271] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.362403][  T271] RSP: 002b:00007fffbbcc69d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.362665][  T271] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0b68e24bcb
[   13.362908][  T271] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.363149][  T271] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.363388][  T271] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffbbcc8c00
[   13.363636][  T271] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffbbcca87f
| [   13.368532][  T271] ------------[ cut here ]------------
| [   13.368715][  T271] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/271
| [   13.368988][  T271] Modules linked in: ipvtap ipvlan
| [   13.369488][  T271] Tainted: [W]=WARN
[   13.369633][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.370370][  T271] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.370669][  T271] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.371234][  T271] RSP: 0018:ffa0000000a17a78 EFLAGS: 00010286
[   13.371506][  T271] RAX: 00000000ffffffa6 RBX: ff1100000ce0aac0 RCX: 1ff4000000142f15
[   13.371814][  T271] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce0ab7c
[   13.372120][  T271] RBP: ff11000012b71000 R08: 1fe22000019c1571 R09: ff1100000e7d5180
[   13.372413][  T271] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.372731][  T271] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012b71000
[   13.373029][  T271] FS:  00007f0b68b62840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   13.373361][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.373629][  T271] CR2: 00007f0b68d69430 CR3: 0000000004bcf006 CR4: 0000000000771ef0
[   13.373940][  T271] PKRU: 55555554
[   13.374136][  T271] Call Trace:
[   13.374334][  T271]  <TASK>
[   13.374510][  T271]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.374756][  T271]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.374989][  T271]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.375190][  T271]  register_netdevice (net/core/dev.c:11488)
[   13.375422][  T271]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.375711][  T271]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.375947][  T271]  register_netdev (net/core/dev.c:11552)
[   13.376178][  T271]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   13.376409][  T271]  ops_init (net/core/net_namespace.c:137)
[   13.376619][  T271]  setup_net (net/core/net_namespace.c:446)
[   13.376834][  T271]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.377064][  T271]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.377295][  T271]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.377534][  T271]  copy_net_ns (net/core/net_namespace.c:579)
[   13.377782][  T271]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.378016][  T271]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.378250][  T271]  ksys_unshare (kernel/fork.c:3243)
[   13.378488][  T271]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.378732][  T271]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.378962][  T271]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.379193][  T271]  ? __ia32_sys_open (fs/open.c:1374)
[   13.379424][  T271]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.379675][  T271]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.379908][  T271]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.380142][  T271]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.380372][  T271]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.380612][  T271]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.380909][  T271] RIP: 0033:0x7f0b68e24bcb
[   13.381155][  T271] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.381753][  T271] RSP: 002b:00007fffbbcc69d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.382061][  T271] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0b68e24bcb
[   13.382367][  T271] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.382691][  T271] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.383000][  T271] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffbbcc8c00
[   13.383303][  T271] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffbbcca87f
| [   13.414806][  T272] ------------[ cut here ]------------
| [   13.414952][  T272] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/272
| [   13.415182][  T272] Modules linked in: ipvtap ipvlan
| [   13.415594][  T272] Tainted: [W]=WARN
[   13.415702][  T272] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.415864][  T272] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.416034][  T272] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.416507][  T272] RSP: 0018:ffa0000000a27020 EFLAGS: 00010286
[   13.416676][  T272] RAX: 00000000ffffffa6 RBX: ff1100000ce0b380 RCX: 1ff4000000144dca
[   13.416871][  T272] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce0b43c
[   13.417065][  T272] RBP: ff11000008b61000 R08: 1fe22000019c1689 R09: ff1100000f9eae58
[   13.417258][  T272] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   13.417450][  T272] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   13.417658][  T272] FS:  00007ff744b48840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   13.417884][  T272] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.418046][  T272] CR2: 0000000017def988 CR3: 000000000aa25004 CR4: 0000000000771ef0
[   13.418240][  T272] PKRU: 55555554
[   13.418336][  T272] Call Trace:
[   13.418434][  T272]  <TASK>
[   13.418534][  T272]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.418668][  T272]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.418769][  T272]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   13.418898][  T272]  __dev_notify_flags (net/core/dev.c:9787)
[   13.419029][  T272]  ? netif_change_name (net/core/dev.c:1495)
[   13.419158][  T272]  ? __dev_change_flags (net/core/dev.c:9752)
[   13.419288][  T272]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   13.419421][  T272]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.419558][  T272]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   13.419696][  T272]  netif_change_flags (net/core/dev.c:9820)
[   13.419826][  T272]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   13.419958][  T272]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   13.420095][  T272]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   13.420230][  T272]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   13.420395][  T272]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.420536][  T272]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.420678][  T272]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.420812][  T272]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.420947][  T272]  ? __kernel_text_address (kernel/extable.c:79)
[   13.421081][  T272]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.421218][  T272]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.421349][  T272]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.421489][  T272]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.421622][  T272]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.421759][  T272]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.421892][  T272]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.422026][  T272]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   13.422160][  T272]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   13.422294][  T272]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   13.422426][  T272]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.422566][  T272]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   13.422707][  T272]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   13.422846][  T272]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.422980][  T272]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.423113][  T272]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.423246][  T272]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.423380][  T272]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.423518][  T272]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.423658][  T272]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.423793][  T272]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.423925][  T272]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.424057][  T272]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.424191][  T272]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.424327][  T272]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.424461][  T272]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.424599][  T272]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.424737][  T272]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.424873][  T272]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.425006][  T272]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.425141][  T272]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.425274][  T272]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.425409][  T272]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.425551][  T272]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.425691][  T272]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.425826][  T272]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.425961][  T272]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.426094][  T272]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.426229][  T272]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.426364][  T272]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.426506][  T272]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.426641][  T272]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.426782][  T272]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.426916][  T272]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.427081][  T272]  ? move_addr_to_kernel (net/socket.c:258)
[   13.427214][  T272]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.427347][  T272]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.427484][  T272]  ___sys_sendmsg (net/socket.c:2752)
[   13.427615][  T272]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   13.427784][  T272]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.427930][  T272]  __sys_sendmsg (net/socket.c:2784)
[   13.428063][  T272]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.428196][  T272]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   13.428362][  T272]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.428503][  T272]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.428636][  T272]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.428773][  T272]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.428905][  T272]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.429036][  T272]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.429199][  T272] RIP: 0033:0x7ff744d8208e
[   13.429338][  T272] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.429818][  T272] RSP: 002b:00007ffd083022b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.430016][  T272] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff744d8208e
[   13.430211][  T272] RDX: 0000000000000000 RSI: 00007ffd08302360 RDI: 0000000000000005
[   13.430407][  T272] RBP: 00007ffd083022c0 R08: 0000000000000000 R09: 0000000000000000
[   13.430606][  T272] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac4
[   13.430807][  T272] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd08302a30
| [   13.551524][  T275] ------------[ cut here ]------------
| [   13.552391][  T275] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/275
| [   13.552814][  T275] Modules linked in: ipvtap ipvlan
| [   13.553484][  T275] Tainted: [W]=WARN
[   13.553635][  T275] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.553870][  T275] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.554100][  T275] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.554665][  T275] RSP: 0018:ffa0000000a570b0 EFLAGS: 00010286
[   13.554889][  T275] RAX: 00000000ffffffa6 RBX: ff1100000bef3700 RCX: 1ff400000014addc
[   13.555140][  T275] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bef37bc
[   13.555395][  T275] RBP: ff11000007edc000 R08: 1fe22000017de6f9 R09: ff1100000903d180
[   13.555671][  T275] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   13.555924][  T275] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   13.556179][  T275] FS:  00007fc8cbcf0840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   13.556478][  T275] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.556714][  T275] CR2: 0000000000445730 CR3: 000000000e80d003 CR4: 0000000000771ef0
[   13.556985][  T275] PKRU: 55555554
[   13.557135][  T275] Call Trace:
[   13.557287][  T275]  <TASK>
[   13.557408][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.557608][  T275]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   13.557814][  T275]  notifier_call_chain (kernel/notifier.c:85)
[   13.558006][  T275]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   13.558195][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.558383][  T275]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   13.558577][  T275]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   13.558744][  T275]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   13.558970][  T275]  ? ida_destroy (lib/idr.c:623)
[   13.559162][  T275]  netdev_upper_dev_link (net/core/dev.c:8972)
[   13.559352][  T275]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   13.559549][  T275] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   13.559751][  T275]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   13.559937][  T275]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   13.560126][  T275] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   13.560313][  T275]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   13.560513][  T275]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   13.560715][  T275]  ? __dev_get_by_name (net/core/dev.c:883)
[   13.560901][  T275]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   13.561093][  T275]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   13.561285][  T275]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.561483][  T275]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.561687][  T275]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.561880][  T275]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.562067][  T275]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.562254][  T275]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.562446][  T275]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.562644][  T275]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.562844][  T275]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.563031][  T275]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.563237][  T275]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.563425][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.563622][  T275]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.563821][  T275]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.564008][  T275]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.564194][  T275]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.564405][  T275]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.564605][  T275]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.564806][  T275]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.564999][  T275]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.565187][  T275]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.565372][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.565567][  T275]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.565787][  T275]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.565977][  T275]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.566166][  T275]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.566355][  T275]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.566546][  T275]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.566777][  T275]  ? move_addr_to_kernel (net/socket.c:258)
[   13.566986][  T275]  ___sys_sendmsg (net/socket.c:2752)
[   13.567171][  T275]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.567356][  T275]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.567557][  T275]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   13.567763][  T275]  __sys_sendmsg (net/socket.c:2784)
[   13.567952][  T275]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.568160][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.568346][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.568543][  T275]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.568743][  T275]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.568930][  T275]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.569119][  T275]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.569341][  T275] RIP: 0033:0x7fc8cbf2a08e
[   13.569560][  T275] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.570113][  T275] RSP: 002b:00007ffcb0cef710 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.570374][  T275] RAX: ffffffffffffffda RBX: 00007ffcb0cefec8 RCX: 00007fc8cbf2a08e
[   13.570669][  T275] RDX: 0000000000000000 RSI: 00007ffcb0cef7c0 RDI: 0000000000000005
[   13.570922][  T275] RBP: 00007ffcb0cef720 R08: 0000000000000000 R09: 0000000000000000
[   13.571175][  T275] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac4
[   13.571426][  T275] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcb0cefe80
| [   13.573532][  T275] ------------[ cut here ]------------
| [   13.573685][  T275] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/275
| [   13.573920][  T275] Modules linked in: ipvtap ipvlan
| [   13.574326][  T275] Tainted: [W]=WARN
[   13.574427][  T275] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.574599][  T275] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.574782][  T275] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.575252][  T275] RSP: 0018:ffa0000000a571b0 EFLAGS: 00010286
[   13.575419][  T275] RAX: 00000000ffffffa6 RBX: ff1100000bef38c0 RCX: 1ff400000014adfc
[   13.575625][  T275] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bef397c
[   13.575832][  T275] RBP: ff11000012baa000 R08: 1fe22000017de731 R09: ff1100000903d180
[   13.576028][  T275] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.576224][  T275] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   13.576423][  T275] FS:  00007fc8cbcf0840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   13.576670][  T275] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.576837][  T275] CR2: 00007ffe7ed53e80 CR3: 000000000e80d001 CR4: 0000000000771ef0
[   13.577035][  T275] PKRU: 55555554
[   13.577134][  T275] Call Trace:
[   13.577232][  T275]  <TASK>
[   13.577301][  T275]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.577439][  T275]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.577544][  T275]  ? ida_destroy (lib/idr.c:623)
[   13.577684][  T275]  __dev_notify_flags (net/core/dev.c:9787)
[   13.577817][  T275]  ? netif_change_name (net/core/dev.c:1495)
[   13.577950][  T275]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.578082][  T275]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   13.578247][  T275]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   13.578414][  T275]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   13.578552][  T275]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   13.578692][  T275]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   13.578823][  T275]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   13.578955][  T275]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   13.579088][  T275]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   13.579220][  T275]  ? __dev_get_by_name (net/core/dev.c:883)
[   13.579354][  T275]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   13.579499][  T275]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   13.579636][  T275]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.579775][  T275]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.579906][  T275]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.580037][  T275]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.580169][  T275]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.580298][  T275]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.580435][  T275]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.580573][  T275]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.580711][  T275]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.580843][  T275]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.580976][  T275]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.581106][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.581239][  T275]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.581372][  T275]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.581509][  T275]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.581641][  T275]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.581779][  T275]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.581916][  T275]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.582046][  T275]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.582180][  T275]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.582314][  T275]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.582447][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.582587][  T275]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.582728][  T275]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.582862][  T275]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.582994][  T275]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.583126][  T275]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.583258][  T275]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.583424][  T275]  ? move_addr_to_kernel (net/socket.c:258)
[   13.583569][  T275]  ___sys_sendmsg (net/socket.c:2752)
[   13.583707][  T275]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.583839][  T275]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.583980][  T275]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   13.584113][  T275]  __sys_sendmsg (net/socket.c:2784)
[   13.584245][  T275]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.584382][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.584521][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.584659][  T275]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.584790][  T275]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.584921][  T275]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.585052][  T275]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.585215][  T275] RIP: 0033:0x7fc8cbf2a08e
[   13.585371][  T275] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.585848][  T275] RSP: 002b:00007ffcb0cef710 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.586046][  T275] RAX: ffffffffffffffda RBX: 00007ffcb0cefec8 RCX: 00007fc8cbf2a08e
[   13.586250][  T275] RDX: 0000000000000000 RSI: 00007ffcb0cef7c0 RDI: 0000000000000005
[   13.586447][  T275] RBP: 00007ffcb0cef720 R08: 0000000000000000 R09: 0000000000000000
[   13.586648][  T275] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac4
[   13.586851][  T275] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcb0cefe80
| [   13.640902][  T277] ------------[ cut here ]------------
| [   13.641059][  T277] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/277
| [   13.641289][  T277] Modules linked in: ipvtap ipvlan
| [   13.641707][  T277] Tainted: [W]=WARN
[   13.641805][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.641971][  T277] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.642143][  T277] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.642608][  T277] RSP: 0018:ffa0000000a77a80 EFLAGS: 00010286
[   13.642778][  T277] RAX: 00000000ffffffa6 RBX: ff1100000ce0bc40 RCX: 1ff400000014ef16
[   13.642971][  T277] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce0bcfc
[   13.643164][  T277] RBP: ff1100000e4ac000 R08: 1fe22000019c17a1 R09: ff1100000f9e5180
[   13.643360][  T277] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.643561][  T277] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e4ac000
[   13.643764][  T277] FS:  00007f9671b1e840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   13.643994][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.644158][  T277] CR2: 00007f9671d1fc20 CR3: 000000000f75f004 CR4: 0000000000771ef0
[   13.644355][  T277] PKRU: 55555554
[   13.644452][  T277] Call Trace:
[   13.644555][  T277]  <TASK>
[   13.644624][  T277]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.644761][  T277]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.644893][  T277]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.644993][  T277]  register_netdevice (net/core/dev.c:11488)
[   13.645126][  T277]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.645288][  T277]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.645419][  T277]  register_netdev (net/core/dev.c:11552)
[   13.645556][  T277]  loopback_net_init (drivers/net/loopback.c:218)
[   13.645693][  T277]  ops_init (net/core/net_namespace.c:137)
[   13.645795][  T277]  setup_net (net/core/net_namespace.c:446)
[   13.645895][  T277]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.646024][  T277]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.646152][  T277]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.646284][  T277]  copy_net_ns (net/core/net_namespace.c:579)
[   13.646416][  T277]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.646555][  T277]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.646693][  T277]  ksys_unshare (kernel/fork.c:3243)
[   13.646824][  T277]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.646953][  T277]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.647082][  T277]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.647215][  T277]  ? __ia32_sys_open (fs/open.c:1374)
[   13.647347][  T277]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.647479][  T277]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.647608][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.647742][  T277]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.647872][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.648002][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.648163][  T277] RIP: 0033:0x7f9671de0bcb
[   13.648299][  T277] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.648776][  T277] RSP: 002b:00007fffaa796b28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.648972][  T277] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9671de0bcb
[   13.649166][  T277] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.649360][  T277] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.649565][  T277] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffaa798d50
[   13.649763][  T277] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffaa79987e
| [   13.654285][  T277] ------------[ cut here ]------------
| [   13.654421][  T277] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/277
| [   13.654656][  T277] Modules linked in: ipvtap ipvlan
| [   13.655047][  T277] Tainted: [W]=WARN
[   13.655146][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.655306][  T277] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.655477][  T277] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.655942][  T277] RSP: 0018:ffa0000000a77918 EFLAGS: 00010286
[   13.656106][  T277] RAX: 00000000ffffffa6 RBX: ff11000012bfc040 RCX: 1ff400000014eee9
[   13.656298][  T277] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012bfc0fc
[   13.656495][  T277] RBP: ff1100000fcb4000 R08: 1fe220000257f821 R09: ff1100000f9e5180
[   13.656692][  T277] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.656885][  T277] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fcb4000
[   13.657077][  T277] FS:  00007f9671b1e840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   13.657301][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.657466][  T277] CR2: 00007f9671d1fc20 CR3: 000000000f75f004 CR4: 0000000000771ef0
[   13.657667][  T277] PKRU: 55555554
[   13.657765][  T277] Call Trace:
[   13.657861][  T277]  <TASK>
[   13.657927][  T277]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.658056][  T277]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.658185][  T277]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.658283][  T277]  register_netdevice (net/core/dev.c:11488)
[   13.658414][  T277]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.658579][  T277]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.658716][  T277]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   13.658847][  T277]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   13.658976][  T277]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   13.659106][  T277]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   13.659235][  T277]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   13.659366][  T277]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   13.659502][  T277]  ops_init (net/core/net_namespace.c:137)
[   13.659602][  T277]  setup_net (net/core/net_namespace.c:446)
[   13.659705][  T277]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.659833][  T277]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.659962][  T277]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.660093][  T277]  copy_net_ns (net/core/net_namespace.c:579)
[   13.660225][  T277]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.660357][  T277]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.660493][  T277]  ksys_unshare (kernel/fork.c:3243)
[   13.660621][  T277]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.660755][  T277]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.660884][  T277]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.661013][  T277]  ? __ia32_sys_open (fs/open.c:1374)
[   13.661144][  T277]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.661271][  T277]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.661400][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.661535][  T277]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.661667][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.661797][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.661956][  T277] RIP: 0033:0x7f9671de0bcb
[   13.662090][  T277] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.662553][  T277] RSP: 002b:00007fffaa796b28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.662753][  T277] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9671de0bcb
[   13.662948][  T277] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.663141][  T277] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.663334][  T277] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffaa798d50
[   13.663530][  T277] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffaa79987e
| [   13.675598][  T277] ------------[ cut here ]------------
| [   13.675746][  T277] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/277
| [   13.675976][  T277] Modules linked in: ipvtap ipvlan
| [   13.676374][  T277] Tainted: [W]=WARN
[   13.676479][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.676644][  T277] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.676822][  T277] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.677293][  T277] RSP: 0018:ffa0000000a778f8 EFLAGS: 00010286
[   13.677460][  T277] RAX: 00000000ffffffa6 RBX: ff1100000d598040 RCX: 1ff400000014eee5
[   13.677670][  T277] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d5980fc
[   13.677868][  T277] RBP: ff1100000f449000 R08: 1fe2200001ab3021 R09: ff1100000f9e5180
[   13.678065][  T277] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.678259][  T277] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f449000
[   13.678457][  T277] FS:  00007f9671b1e840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   13.678700][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.678866][  T277] CR2: 00007f9671d1fc20 CR3: 000000000f75f004 CR4: 0000000000771ef0
[   13.679063][  T277] PKRU: 55555554
[   13.679161][  T277] Call Trace:
[   13.679259][  T277]  <TASK>
[   13.679327][  T277]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.679460][  T277]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.679600][  T277]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.679733][  T277]  register_netdevice (net/core/dev.c:11488)
[   13.679871][  T277]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.680034][  T277]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.680168][  T277]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   13.680301][  T277]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   13.680433][  T277]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   13.680571][  T277]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   13.680710][  T277]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   13.680843][  T277]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   13.680975][  T277]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   13.681110][  T277]  vti_init_net (net/ipv4/ip_vti.c:517)
[   13.681245][  T277]  ops_init (net/core/net_namespace.c:137)
[   13.681346][  T277]  setup_net (net/core/net_namespace.c:446)
[   13.681447][  T277]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.681584][  T277]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.681721][  T277]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.681854][  T277]  copy_net_ns (net/core/net_namespace.c:579)
[   13.681987][  T277]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.682122][  T277]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.682256][  T277]  ksys_unshare (kernel/fork.c:3243)
[   13.682388][  T277]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.682527][  T277]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.682666][  T277]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.682805][  T277]  ? __ia32_sys_open (fs/open.c:1374)
[   13.682940][  T277]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.683070][  T277]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.683202][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.683334][  T277]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.683470][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.683604][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.683775][  T277] RIP: 0033:0x7f9671de0bcb
[   13.683912][  T277] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.684380][  T277] RSP: 002b:00007fffaa796b28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.684588][  T277] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9671de0bcb
[   13.684789][  T277] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.684984][  T277] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.685178][  T277] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffaa798d50
[   13.685379][  T277] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffaa79987e
| [   13.689436][  T277] ------------[ cut here ]------------
| [   13.689578][  T277] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/277
| [   13.690300][  T277] Modules linked in: ipvtap ipvlan
| [   13.690759][  T277] Tainted: [W]=WARN
[   13.690860][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.691021][  T277] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.691191][  T277] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.691717][  T277] RSP: 0018:ffa0000000a77a78 EFLAGS: 00010286
[   13.691882][  T277] RAX: 00000000ffffffa6 RBX: ff1100000d598e40 RCX: 1ff400000014ef15
[   13.692131][  T277] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d598efc
[   13.692323][  T277] RBP: ff1100000e831000 R08: 1fe2200001ab31e1 R09: ff1100000f9e5180
[   13.692528][  T277] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.692737][  T277] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e831000
[   13.692934][  T277] FS:  00007f9671b1e840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   13.693161][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.693324][  T277] CR2: 00007f9671d1fc20 CR3: 000000000f75f004 CR4: 0000000000771ef0
[   13.693525][  T277] PKRU: 55555554
[   13.693623][  T277] Call Trace:
[   13.693727][  T277]  <TASK>
[   13.693795][  T277]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.693926][  T277]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.694056][  T277]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.694156][  T277]  register_netdevice (net/core/dev.c:11488)
[   13.694289][  T277]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.694452][  T277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.694592][  T277]  register_netdev (net/core/dev.c:11552)
[   13.694728][  T277]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   13.694859][  T277]  ops_init (net/core/net_namespace.c:137)
[   13.694958][  T277]  setup_net (net/core/net_namespace.c:446)
[   13.695058][  T277]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.695189][  T277]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.695320][  T277]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.695454][  T277]  copy_net_ns (net/core/net_namespace.c:579)
[   13.695591][  T277]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.695735][  T277]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.695866][  T277]  ksys_unshare (kernel/fork.c:3243)
[   13.695995][  T277]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.696127][  T277]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.696258][  T277]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.696392][  T277]  ? __ia32_sys_open (fs/open.c:1374)
[   13.696530][  T277]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.696664][  T277]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.696794][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.696922][  T277]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.697051][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.697180][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.697342][  T277] RIP: 0033:0x7f9671de0bcb
[   13.697481][  T277] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.697951][  T277] RSP: 002b:00007fffaa796b28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.698147][  T277] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9671de0bcb
[   13.698343][  T277] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.698540][  T277] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.698738][  T277] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffaa798d50
[   13.698931][  T277] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffaa79987e
| [   13.703819][  T277] ------------[ cut here ]------------
| [   13.703954][  T277] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/277
| [   13.704181][  T277] Modules linked in: ipvtap ipvlan
| [   13.704582][  T277] Tainted: [W]=WARN
[   13.704685][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.704846][  T277] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.705013][  T277] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.705474][  T277] RSP: 0018:ffa0000000a77a68 EFLAGS: 00010286
[   13.705637][  T277] RAX: 00000000ffffffa6 RBX: ff11000012bfd1c0 RCX: 1ff400000014ef13
[   13.705836][  T277] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012bfd27c
[   13.706029][  T277] RBP: ff1100000f411000 R08: 1fe220000257fa51 R09: ff1100000f9e5180
[   13.706222][  T277] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.706413][  T277] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f411000
[   13.706611][  T277] FS:  00007f9671b1e840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   13.706844][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.707006][  T277] CR2: 00007f9671d1fc20 CR3: 000000000f75f004 CR4: 0000000000771ef0
[   13.707200][  T277] PKRU: 55555554
[   13.707297][  T277] Call Trace:
[   13.707393][  T277]  <TASK>
[   13.707459][  T277]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.707593][  T277]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.707728][  T277]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.707827][  T277]  register_netdevice (net/core/dev.c:11488)
[   13.707958][  T277]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.708122][  T277]  register_netdev (net/core/dev.c:11552)
[   13.708250][  T277]  sit_init_net (net/ipv6/sit.c:1860)
[   13.708380][  T277]  ops_init (net/core/net_namespace.c:137)
[   13.708482][  T277]  setup_net (net/core/net_namespace.c:446)
[   13.708581][  T277]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.708714][  T277]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.708844][  T277]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.708975][  T277]  copy_net_ns (net/core/net_namespace.c:579)
[   13.709105][  T277]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.709236][  T277]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.709366][  T277]  ksys_unshare (kernel/fork.c:3243)
[   13.709499][  T277]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.709628][  T277]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.709818][  T277]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.709950][  T277]  ? __ia32_sys_open (fs/open.c:1374)
[   13.710082][  T277]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.710212][  T277]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.710341][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.710474][  T277]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.710603][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.710789][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.711001][  T277] RIP: 0033:0x7f9671de0bcb
[   13.711136][  T277] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.711602][  T277] RSP: 002b:00007fffaa796b28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.711856][  T277] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9671de0bcb
[   13.712047][  T277] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.712238][  T277] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.712430][  T277] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffaa798d50
[   13.712627][  T277] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffaa79987e
| [   13.717981][  T277] ------------[ cut here ]------------
| [   13.718126][  T277] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/277
| [   13.718353][  T277] Modules linked in: ipvtap ipvlan
| [   13.718762][  T277] Tainted: [W]=WARN
[   13.718862][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.719023][  T277] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.719191][  T277] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.719662][  T277] RSP: 0018:ffa0000000a77a78 EFLAGS: 00010286
[   13.719828][  T277] RAX: 00000000ffffffa6 RBX: ff1100000becfa80 RCX: 1ff400000014ef15
[   13.720020][  T277] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000becfb3c
[   13.720213][  T277] RBP: ff11000012c54000 R08: 1fe22000017d9f69 R09: ff1100000f9e5180
[   13.720405][  T277] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.720605][  T277] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012c54000
[   13.720807][  T277] FS:  00007f9671b1e840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   13.721033][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.721195][  T277] CR2: 00007f4c1fa8b2a0 CR3: 000000000f75f006 CR4: 0000000000771ef0
[   13.721391][  T277] PKRU: 55555554
[   13.721495][  T277] Call Trace:
[   13.721591][  T277]  <TASK>
[   13.721664][  T277]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.721793][  T277]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.721923][  T277]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.722022][  T277]  register_netdevice (net/core/dev.c:11488)
[   13.722153][  T277]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.722313][  T277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.722446][  T277]  register_netdev (net/core/dev.c:11552)
[   13.722582][  T277]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   13.722718][  T277]  ops_init (net/core/net_namespace.c:137)
[   13.722816][  T277]  setup_net (net/core/net_namespace.c:446)
[   13.722914][  T277]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.723041][  T277]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.723170][  T277]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.723305][  T277]  copy_net_ns (net/core/net_namespace.c:579)
[   13.723435][  T277]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.723572][  T277]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.723707][  T277]  ksys_unshare (kernel/fork.c:3243)
[   13.723834][  T277]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.723963][  T277]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.724094][  T277]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.724224][  T277]  ? __ia32_sys_open (fs/open.c:1374)
[   13.724355][  T277]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.724487][  T277]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.724615][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.724748][  T277]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.724876][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.725006][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.725166][  T277] RIP: 0033:0x7f9671de0bcb
[   13.725301][  T277] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.725766][  T277] RSP: 002b:00007fffaa796b28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.725959][  T277] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9671de0bcb
[   13.726152][  T277] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.726343][  T277] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.726540][  T277] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffaa798d50
[   13.726738][  T277] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffaa79987e
| [   13.757415][  T278] ------------[ cut here ]------------
| [   13.757571][  T278] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/278
| [   13.757886][  T278] Modules linked in: ipvtap ipvlan
| [   13.758282][  T278] Tainted: [W]=WARN
[   13.758380][  T278] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.758548][  T278] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.758727][  T278] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.759188][  T278] RSP: 0018:ffa0000000a87020 EFLAGS: 00010286
[   13.759350][  T278] RAX: 00000000ffffffa6 RBX: ff1100000b5d1a80 RCX: 1ff4000000150dca
[   13.759546][  T278] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b5d1b3c
[   13.759745][  T278] RBP: ff1100000e4ac000 R08: 1fe22000016ba369 R09: ff1100000f710b58
[   13.759934][  T278] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   13.760124][  T278] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   13.760315][  T278] FS:  00007f3d94854840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   13.760544][  T278] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.760711][  T278] CR2: 000000002566e988 CR3: 000000000f727001 CR4: 0000000000771ef0
[   13.760903][  T278] PKRU: 55555554
[   13.760998][  T278] Call Trace:
[   13.761093][  T278]  <TASK>
[   13.761160][  T278]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.761293][  T278]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.761391][  T278]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   13.761525][  T278]  __dev_notify_flags (net/core/dev.c:9787)
[   13.761661][  T278]  ? netif_change_name (net/core/dev.c:1495)
[   13.761790][  T278]  ? __dev_change_flags (net/core/dev.c:9752)
[   13.761917][  T278]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   13.762045][  T278]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.762174][  T278]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   13.762304][  T278]  netif_change_flags (net/core/dev.c:9820)
[   13.762433][  T278]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   13.762568][  T278]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   13.762703][  T278]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   13.762831][  T278]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   13.762991][  T278]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.763123][  T278]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.763251][  T278]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.763379][  T278]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.763515][  T278]  ? __kernel_text_address (kernel/extable.c:79)
[   13.763644][  T278]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.763779][  T278]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.763907][  T278]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.764038][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.764167][  T278]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.764293][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.764420][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.764555][  T278]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   13.764689][  T278]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   13.764817][  T278]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   13.764945][  T278]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.765086][  T278]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   13.765219][  T278]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   13.765350][  T278]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.765487][  T278]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.765618][  T278]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.765753][  T278]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.765881][  T278]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.766010][  T278]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.766144][  T278]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.766272][  T278]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.766400][  T278]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.766534][  T278]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.766667][  T278]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.766797][  T278]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.766926][  T278]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.767056][  T278]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.767184][  T278]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.767314][  T278]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.767443][  T278]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.767576][  T278]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.767712][  T278]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.767841][  T278]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.767972][  T278]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.768102][  T278]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.768232][  T278]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.768363][  T278]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.768497][  T278]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.768628][  T278]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.768761][  T278]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.768893][  T278]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.769025][  T278]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.769159][  T278]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.769287][  T278]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.769445][  T278]  ? move_addr_to_kernel (net/socket.c:258)
[   13.769580][  T278]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.769715][  T278]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.769845][  T278]  ___sys_sendmsg (net/socket.c:2752)
[   13.769976][  T278]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   13.770134][  T278]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.770273][  T278]  __sys_sendmsg (net/socket.c:2784)
[   13.770403][  T278]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.770535][  T278]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   13.770700][  T278]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.770828][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.770959][  T278]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.771087][  T278]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.771214][  T278]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.771342][  T278]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.771506][  T278] RIP: 0033:0x7f3d94a8e08e
[   13.771640][  T278] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.772100][  T278] RSP: 002b:00007ffde510de40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.772293][  T278] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f3d94a8e08e
[   13.772505][  T278] RDX: 0000000000000000 RSI: 00007ffde510def0 RDI: 0000000000000005
[   13.772706][  T278] RBP: 00007ffde510de50 R08: 0000000000000000 R09: 0000000000000000
[   13.772896][  T278] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac5
[   13.773087][  T278] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffde510e5c0
| [   13.894543][  T281] ------------[ cut here ]------------
| [   13.894726][  T281] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/281
| [   13.894974][  T281] Modules linked in: ipvtap ipvlan
| [   13.895400][  T281] Tainted: [W]=WARN
[   13.895511][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.895692][  T281] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.895872][  T281] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.896363][  T281] RSP: 0018:ffa0000000ab70b0 EFLAGS: 00010286
[   13.896540][  T281] RAX: 00000000ffffffa6 RBX: ff1100000ba24580 RCX: 1ff4000000156ddc
[   13.896750][  T281] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba2463c
[   13.896956][  T281] RBP: ff11000007edc000 R08: 1fe22000017448c9 R09: ff1100000f698b80
[   13.897163][  T281] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   13.897370][  T281] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   13.897584][  T281] FS:  00007f9197de9840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   13.897832][  T281] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.898005][  T281] CR2: 0000000000445730 CR3: 000000000f6ee001 CR4: 0000000000771ef0
[   13.898216][  T281] PKRU: 55555554
[   13.898321][  T281] Call Trace:
[   13.898424][  T281]  <TASK>
[   13.898501][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.898641][  T281]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   13.898787][  T281]  notifier_call_chain (kernel/notifier.c:85)
[   13.898928][  T281]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   13.899066][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.899206][  T281]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   13.899345][  T281]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   13.899454][  T281]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   13.899636][  T281]  ? ida_destroy (lib/idr.c:623)
[   13.899785][  T281]  netdev_upper_dev_link (net/core/dev.c:8972)
[   13.899923][  T281]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   13.900063][  T281] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   13.900204][  T281]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   13.900343][  T281]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   13.900489][  T281] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   13.900629][  T281]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   13.900859][  T281]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   13.900998][  T281]  ? __dev_get_by_name (net/core/dev.c:883)
[   13.901135][  T281]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   13.901279][  T281]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   13.901422][  T281]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.901568][  T281]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.901780][  T281]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.901919][  T281]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.902059][  T281]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.902197][  T281]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.902340][  T281]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.902483][  T281]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.902624][  T281]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.902857][  T281]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.903067][  T281]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.903205][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.903347][  T281]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.903488][  T281]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.903628][  T281]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.903839][  T281]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.903978][  T281]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.904122][  T281]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.904259][  T281]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.904398][  T281]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.904540][  T281]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.904749][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.904889][  T281]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.905030][  T281]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.905171][  T281]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.905313][  T281]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.905452][  T281]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.905596][  T281]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.905861][  T281]  ? move_addr_to_kernel (net/socket.c:258)
[   13.906003][  T281]  ___sys_sendmsg (net/socket.c:2752)
[   13.906142][  T281]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.906283][  T281]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.906431][  T281]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   13.906575][  T281]  __sys_sendmsg (net/socket.c:2784)
[   13.906742][  T281]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.906884][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.907022][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.907161][  T281]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.907299][  T281]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.907438][  T281]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.907582][  T281]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.907760][  T281] RIP: 0033:0x7f919802308e
[   13.907905][  T281] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.908399][  T281] RSP: 002b:00007ffd4073b920 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.908611][  T281] RAX: ffffffffffffffda RBX: 00007ffd4073c0d8 RCX: 00007f919802308e
[   13.908823][  T281] RDX: 0000000000000000 RSI: 00007ffd4073b9d0 RDI: 0000000000000005
[   13.909030][  T281] RBP: 00007ffd4073b930 R08: 0000000000000000 R09: 0000000000000000
[   13.909237][  T281] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac5
[   13.909444][  T281] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd4073c090
| [   13.911051][  T281] ------------[ cut here ]------------
| [   13.911181][  T281] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/281
| [   13.911406][  T281] Modules linked in: ipvtap ipvlan
| [   13.911818][  T281] Tainted: [W]=WARN
[   13.911919][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.912086][  T281] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.912257][  T281] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.912735][  T281] RSP: 0018:ffa0000000ab71b0 EFLAGS: 00010286
[   13.912901][  T281] RAX: 00000000ffffffa6 RBX: ff11000012bfde00 RCX: 1ff4000000156dfc
[   13.913101][  T281] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012bfdebc
[   13.913298][  T281] RBP: ff11000012cb2000 R08: 1fe220000257fbd9 R09: ff1100000f698b80
[   13.913498][  T281] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.913699][  T281] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   13.913897][  T281] FS:  00007f9197de9840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   13.914127][  T281] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.914290][  T281] CR2: 0000000000445730 CR3: 000000000f6ee001 CR4: 0000000000771ef0
[   13.914490][  T281] PKRU: 55555554
[   13.914589][  T281] Call Trace:
[   13.914691][  T281]  <TASK>
[   13.914759][  T281]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.914891][  T281]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.914992][  T281]  ? ida_destroy (lib/idr.c:623)
[   13.915124][  T281]  __dev_notify_flags (net/core/dev.c:9787)
[   13.915256][  T281]  ? netif_change_name (net/core/dev.c:1495)
[   13.915389][  T281]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.915526][  T281]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   13.915698][  T281]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   13.915862][  T281]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   13.915995][  T281]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   13.916129][  T281]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   13.916261][  T281]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   13.916394][  T281]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   13.916535][  T281]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   13.916673][  T281]  ? __dev_get_by_name (net/core/dev.c:883)
[   13.916805][  T281]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   13.916943][  T281]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   13.917078][  T281]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.917212][  T281]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.917345][  T281]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.917481][  T281]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.917614][  T281]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.917750][  T281]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.917886][  T281]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.918020][  T281]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.918152][  T281]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.918285][  T281]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.918418][  T281]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.918555][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.918696][  T281]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.918827][  T281]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.918959][  T281]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.919093][  T281]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.919227][  T281]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.919364][  T281]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.919500][  T281]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.919635][  T281]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.919774][  T281]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.919907][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.920040][  T281]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.920174][  T281]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.920307][  T281]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.920441][  T281]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.920577][  T281]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.920715][  T281]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.920879][  T281]  ? move_addr_to_kernel (net/socket.c:258)
[   13.921015][  T281]  ___sys_sendmsg (net/socket.c:2752)
[   13.921146][  T281]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.921278][  T281]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.921420][  T281]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   13.921560][  T281]  __sys_sendmsg (net/socket.c:2784)
[   13.921697][  T281]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.921834][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.921966][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.922099][  T281]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.922232][  T281]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.922365][  T281]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.922504][  T281]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.922675][  T281] RIP: 0033:0x7f919802308e
[   13.922812][  T281] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.923277][  T281] RSP: 002b:00007ffd4073b920 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.923478][  T281] RAX: ffffffffffffffda RBX: 00007ffd4073c0d8 RCX: 00007f919802308e
[   13.923681][  T281] RDX: 0000000000000000 RSI: 00007ffd4073b9d0 RDI: 0000000000000005
[   13.923877][  T281] RBP: 00007ffd4073b930 R08: 0000000000000000 R09: 0000000000000000
[   13.924073][  T281] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac5
[   13.924268][  T281] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd4073c090
| [   13.979407][  T283] ------------[ cut here ]------------
| [   13.979562][  T283] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/283
| [   13.979795][  T283] Modules linked in: ipvtap ipvlan
| [   13.980195][  T283] Tainted: [W]=WARN
[   13.980294][  T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.980459][  T283] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.980636][  T283] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.981108][  T283] RSP: 0018:ffa00000009bfa80 EFLAGS: 00010286
[   13.981278][  T283] RAX: 00000000ffffffa6 RBX: ff1100000c67be00 RCX: 1ff4000000137f16
[   13.981480][  T283] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c67bebc
[   13.981679][  T283] RBP: ff1100000fc11000 R08: 1fe22000018cf7d9 R09: ff1100000f69d180
[   13.981871][  T283] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   13.982064][  T283] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fc11000
[   13.982260][  T283] FS:  00007fa779df0840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   13.982495][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.982664][  T283] CR2: 00007fa779ff7430 CR3: 00000000121de003 CR4: 0000000000771ef0
[   13.982860][  T283] PKRU: 55555554
[   13.982957][  T283] Call Trace:
[   13.983053][  T283]  <TASK>
[   13.983120][  T283]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.983252][  T283]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.983382][  T283]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.983486][  T283]  register_netdevice (net/core/dev.c:11488)
[   13.983619][  T283]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.983788][  T283]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.983919][  T283]  register_netdev (net/core/dev.c:11552)
[   13.984050][  T283]  loopback_net_init (drivers/net/loopback.c:218)
[   13.984181][  T283]  ops_init (net/core/net_namespace.c:137)
[   13.984280][  T283]  setup_net (net/core/net_namespace.c:446)
[   13.984378][  T283]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.984509][  T283]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.984638][  T283]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.984777][  T283]  copy_net_ns (net/core/net_namespace.c:579)
[   13.984907][  T283]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.985040][  T283]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.985170][  T283]  ksys_unshare (kernel/fork.c:3243)
[   13.985299][  T283]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.985429][  T283]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.985565][  T283]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.985698][  T283]  ? __ia32_sys_open (fs/open.c:1374)
[   13.985830][  T283]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.985959][  T283]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.986087][  T283]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.986215][  T283]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.986344][  T283]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.986477][  T283]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.986640][  T283] RIP: 0033:0x7fa77a0b2bcb
[   13.987349][  T283] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.987819][  T283] RSP: 002b:00007ffe2aa07b58 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   13.988014][  T283] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa77a0b2bcb
[   13.988208][  T283] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.988400][  T283] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.988596][  T283] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe2aa09d80
[   13.988802][  T283] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe2aa0b87e
| [   13.992985][  T283] ------------[ cut here ]------------
| [   13.993119][  T283] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/283
| [   13.993349][  T283] Modules linked in: ipvtap ipvlan
| [   13.993753][  T283] Tainted: [W]=WARN
[   13.993849][  T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.994009][  T283] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.994177][  T283] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.994638][  T283] RSP: 0018:ffa00000009bf918 EFLAGS: 00010286
[   13.994805][  T283] RAX: 00000000ffffffa6 RBX: ff1100000d5dfe00 RCX: 1ff4000000137ee9
[   13.994997][  T283] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d5dfebc
[   13.995191][  T283] RBP: ff11000005961000 R08: 1fe2200001abbfd9 R09: ff1100000f69d180
[   13.995384][  T283] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   13.995581][  T283] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005961000
[   13.995784][  T283] FS:  00007fa779df0840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   13.996011][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.996171][  T283] CR2: 00007fa779ff7430 CR3: 00000000121de003 CR4: 0000000000771ef0
[   13.996365][  T283] PKRU: 55555554
[   13.996461][  T283] Call Trace:
[   13.996560][  T283]  <TASK>
[   13.996627][  T283]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.996761][  T283]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.996891][  T283]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.996989][  T283]  register_netdevice (net/core/dev.c:11488)
[   13.997119][  T283]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.997281][  T283]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.997412][  T283]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   13.997548][  T283]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   13.997682][  T283]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   13.997812][  T283]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   13.997943][  T283]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   13.998073][  T283]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   13.998204][  T283]  ops_init (net/core/net_namespace.c:137)
[   13.998303][  T283]  setup_net (net/core/net_namespace.c:446)
[   13.998402][  T283]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.998533][  T283]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.998665][  T283]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.998796][  T283]  copy_net_ns (net/core/net_namespace.c:579)
[   13.998926][  T283]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.999058][  T283]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.999188][  T283]  ksys_unshare (kernel/fork.c:3243)
[   13.999317][  T283]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.999445][  T283]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.999582][  T283]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.999720][  T283]  ? __ia32_sys_open (fs/open.c:1374)
[   13.999851][  T283]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.999981][  T283]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.000111][  T283]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.000240][  T283]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.000369][  T283]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.000504][  T283]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.000668][  T283] RIP: 0033:0x7fa77a0b2bcb
[   14.000803][  T283] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.001264][  T283] RSP: 002b:00007ffe2aa07b58 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   14.001461][  T283] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa77a0b2bcb
[   14.001663][  T283] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.001857][  T283] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.002049][  T283] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe2aa09d80
[   14.002242][  T283] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe2aa0b87e
| [   14.006017][  T283] ------------[ cut here ]------------
| [   14.006151][  T283] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/283
| [   14.006379][  T283] Modules linked in: ipvtap ipvlan
| [   14.006843][  T283] Tainted: [W]=WARN
[   14.006943][  T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.007105][  T283] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.007275][  T283] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.007807][  T283] RSP: 0018:ffa00000009bf8f8 EFLAGS: 00010286
[   14.007970][  T283] RAX: 00000000ffffffa6 RBX: ff1100000d599a80 RCX: 1ff4000000137ee5
[   14.008165][  T283] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d599b3c
[   14.008359][  T283] RBP: ff1100000f011000 R08: 1fe2200001ab3369 R09: ff1100000f69d180
[   14.008558][  T283] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.008788][  T283] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f011000
[   14.008983][  T283] FS:  00007fa779df0840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.009211][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.009373][  T283] CR2: 00007fa779ff7430 CR3: 00000000121de003 CR4: 0000000000771ef0
[   14.009575][  T283] PKRU: 55555554
[   14.009676][  T283] Call Trace:
[   14.009773][  T283]  <TASK>
[   14.009842][  T283]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.009974][  T283]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.010104][  T283]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.010203][  T283]  register_netdevice (net/core/dev.c:11488)
[   14.010335][  T283]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.010504][  T283]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.010637][  T283]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   14.010774][  T283]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   14.010907][  T283]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   14.011038][  T283]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   14.011170][  T283]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   14.011304][  T283]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   14.011436][  T283]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   14.011574][  T283]  vti_init_net (net/ipv4/ip_vti.c:517)
[   14.011710][  T283]  ops_init (net/core/net_namespace.c:137)
[   14.011811][  T283]  setup_net (net/core/net_namespace.c:446)
[   14.011910][  T283]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.012040][  T283]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.012172][  T283]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.012304][  T283]  copy_net_ns (net/core/net_namespace.c:579)
[   14.012436][  T283]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.012573][  T283]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.012708][  T283]  ksys_unshare (kernel/fork.c:3243)
[   14.012838][  T283]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.012968][  T283]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.013099][  T283]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.013231][  T283]  ? __ia32_sys_open (fs/open.c:1374)
[   14.013364][  T283]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.013497][  T283]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.013626][  T283]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.013761][  T283]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.013893][  T283]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.014022][  T283]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.014184][  T283] RIP: 0033:0x7fa77a0b2bcb
[   14.014319][  T283] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.014792][  T283] RSP: 002b:00007ffe2aa07b58 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   14.014987][  T283] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa77a0b2bcb
[   14.015181][  T283] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.015375][  T283] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.015576][  T283] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe2aa09d80
[   14.015775][  T283] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe2aa0b87e
| [   14.021495][  T283] ------------[ cut here ]------------
| [   14.021631][  T283] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/283
| [   14.021857][  T283] Modules linked in: ipvtap ipvlan
| [   14.022249][  T283] Tainted: [W]=WARN
[   14.022346][  T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.022510][  T283] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.022682][  T283] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.023143][  T283] RSP: 0018:ffa00000009bfa78 EFLAGS: 00010286
[   14.023304][  T283] RAX: 00000000ffffffa6 RBX: ff1100000c67ba80 RCX: 1ff4000000137f15
[   14.023498][  T283] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c67bb3c
[   14.023696][  T283] RBP: ff11000012d51000 R08: 1fe22000018cf769 R09: ff1100000f69d180
[   14.023888][  T283] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.024081][  T283] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012d51000
[   14.024274][  T283] FS:  00007fa779df0840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.024504][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.024669][  T283] CR2: 00007fa779ff7430 CR3: 00000000121de003 CR4: 0000000000771ef0
[   14.024868][  T283] PKRU: 55555554
[   14.024963][  T283] Call Trace:
[   14.025059][  T283]  <TASK>
[   14.025126][  T283]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.025255][  T283]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.025386][  T283]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.025487][  T283]  register_netdevice (net/core/dev.c:11488)
[   14.025618][  T283]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.026273][  T283]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.026405][  T283]  register_netdev (net/core/dev.c:11552)
[   14.026577][  T283]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   14.026769][  T283]  ops_init (net/core/net_namespace.c:137)
[   14.026872][  T283]  setup_net (net/core/net_namespace.c:446)
[   14.026973][  T283]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.027104][  T283]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.027238][  T283]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.027372][  T283]  copy_net_ns (net/core/net_namespace.c:579)
[   14.027512][  T283]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.027646][  T283]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.027833][  T283]  ksys_unshare (kernel/fork.c:3243)
[   14.027966][  T283]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.028097][  T283]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.028233][  T283]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.028365][  T283]  ? __ia32_sys_open (fs/open.c:1374)
[   14.028556][  T283]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.028743][  T283]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.028877][  T283]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.029008][  T283]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.029139][  T283]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.029271][  T283]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.029436][  T283] RIP: 0033:0x7fa77a0b2bcb
[   14.029580][  T283] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.030106][  T283] RSP: 002b:00007ffe2aa07b58 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   14.030307][  T283] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa77a0b2bcb
[   14.030512][  T283] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.030763][  T283] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.030960][  T283] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe2aa09d80
[   14.031158][  T283] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe2aa0b87e
| [   14.041214][  T283] ------------[ cut here ]------------
| [   14.041358][  T283] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/283
| [   14.041595][  T283] Modules linked in: ipvtap ipvlan
| [   14.042006][  T283] Tainted: [W]=WARN
[   14.042107][  T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.042273][  T283] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.042447][  T283] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.042938][  T283] RSP: 0018:ffa00000009bfa68 EFLAGS: 00010286
[   14.043111][  T283] RAX: 00000000ffffffa6 RBX: ff11000009491540 RCX: 1ff4000000137f13
[   14.043315][  T283] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000094915fc
[   14.043521][  T283] RBP: ff11000012d74000 R08: 1fe22000012922c1 R09: ff1100000f69d180
[   14.043728][  T283] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.043926][  T283] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012d74000
[   14.044128][  T283] FS:  00007fa779df0840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.044360][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.044532][  T283] CR2: 00007fa779ff7430 CR3: 00000000121de003 CR4: 0000000000771ef0
[   14.044738][  T283] PKRU: 55555554
[   14.044837][  T283] Call Trace:
[   14.044937][  T283]  <TASK>
[   14.045005][  T283]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.045141][  T283]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.045275][  T283]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.045377][  T283]  register_netdevice (net/core/dev.c:11488)
[   14.045515][  T283]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.045688][  T283]  register_netdev (net/core/dev.c:11552)
[   14.045821][  T283]  sit_init_net (net/ipv6/sit.c:1860)
[   14.045956][  T283]  ops_init (net/core/net_namespace.c:137)
[   14.046058][  T283]  setup_net (net/core/net_namespace.c:446)
[   14.046164][  T283]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.046297][  T283]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.046430][  T283]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.046572][  T283]  copy_net_ns (net/core/net_namespace.c:579)
[   14.046713][  T283]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.046849][  T283]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.046984][  T283]  ksys_unshare (kernel/fork.c:3243)
[   14.047117][  T283]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.047251][  T283]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.047385][  T283]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.047523][  T283]  ? __ia32_sys_open (fs/open.c:1374)
[   14.047670][  T283]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.047805][  T283]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.047935][  T283]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.048065][  T283]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.048192][  T283]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.048322][  T283]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.048488][  T283] RIP: 0033:0x7fa77a0b2bcb
[   14.048623][  T283] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.049090][  T283] RSP: 002b:00007ffe2aa07b58 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   14.049285][  T283] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa77a0b2bcb
[   14.049481][  T283] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.049678][  T283] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.049872][  T283] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe2aa09d80
[   14.050064][  T283] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe2aa0b87e
| [   14.055671][  T283] ------------[ cut here ]------------
| [   14.055808][  T283] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/283
| [   14.056035][  T283] Modules linked in: ipvtap ipvlan
| [   14.056434][  T283] Tainted: [W]=WARN
[   14.056538][  T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.056705][  T283] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.056874][  T283] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.057338][  T283] RSP: 0018:ffa00000009bfa78 EFLAGS: 00010286
[   14.057505][  T283] RAX: 00000000ffffffa6 RBX: ff11000009644ac0 RCX: 1ff4000000137f15
[   14.057704][  T283] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009644b7c
[   14.057897][  T283] RBP: ff11000012d81000 R08: 1fe22000012c8971 R09: ff1100000f69d180
[   14.058090][  T283] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.058286][  T283] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012d81000
[   14.058488][  T283] FS:  00007fa779df0840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.058777][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.058995][  T283] CR2: 00007fa779ff7430 CR3: 00000000121de003 CR4: 0000000000771ef0
[   14.059190][  T283] PKRU: 55555554
[   14.059288][  T283] Call Trace:
[   14.059385][  T283]  <TASK>
[   14.059452][  T283]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.059589][  T283]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.059774][  T283]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.059874][  T283]  register_netdevice (net/core/dev.c:11488)
[   14.060005][  T283]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.060167][  T283]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.060303][  T283]  register_netdev (net/core/dev.c:11552)
[   14.060433][  T283]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   14.060571][  T283]  ops_init (net/core/net_namespace.c:137)
[   14.060726][  T283]  setup_net (net/core/net_namespace.c:446)
[   14.060825][  T283]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.060955][  T283]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.061085][  T283]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.061218][  T283]  copy_net_ns (net/core/net_namespace.c:579)
[   14.061348][  T283]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.061484][  T283]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.061615][  T283]  ksys_unshare (kernel/fork.c:3243)
[   14.061801][  T283]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.061931][  T283]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.062061][  T283]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.062194][  T283]  ? __ia32_sys_open (fs/open.c:1374)
[   14.062326][  T283]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.062456][  T283]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.062590][  T283]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.062774][  T283]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.062904][  T283]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.063032][  T283]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.063193][  T283] RIP: 0033:0x7fa77a0b2bcb
[   14.063329][  T283] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.063853][  T283] RSP: 002b:00007ffe2aa07b58 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   14.064049][  T283] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa77a0b2bcb
[   14.064246][  T283] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.064441][  T283] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.064636][  T283] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe2aa09d80
[   14.064883][  T283] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe2aa0b87e
| [   14.089757][  T284] ------------[ cut here ]------------
| [   14.089911][  T284] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/284
| [   14.090135][  T284] Modules linked in: ipvtap ipvlan
| [   14.090532][  T284] Tainted: [W]=WARN
[   14.090627][  T284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.090798][  T284] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.090964][  T284] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.091417][  T284] RSP: 0018:ffa0000000ac7020 EFLAGS: 00010286
[   14.091590][  T284] RAX: 00000000ffffffa6 RBX: ff11000012bfd380 RCX: 1ff4000000158dca
[   14.091792][  T284] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012bfd43c
[   14.091982][  T284] RBP: ff1100000fc11000 R08: 1fe220000257fa89 R09: ff1100000faa0b58
[   14.092170][  T284] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[   14.092361][  T284] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   14.092564][  T284] FS:  00007f93c4198840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   14.092793][  T284] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.092959][  T284] CR2: 000000000b87e988 CR3: 000000000f6ee003 CR4: 0000000000771ef0
[   14.093151][  T284] PKRU: 55555554
[   14.093253][  T284] Call Trace:
[   14.093348][  T284]  <TASK>
[   14.093414][  T284]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.093547][  T284]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.093644][  T284]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   14.093778][  T284]  __dev_notify_flags (net/core/dev.c:9787)
[   14.093907][  T284]  ? netif_change_name (net/core/dev.c:1495)
[   14.094036][  T284]  ? __dev_change_flags (net/core/dev.c:9752)
[   14.094169][  T284]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   14.094297][  T284]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.094425][  T284]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   14.094559][  T284]  netif_change_flags (net/core/dev.c:9820)
[   14.094693][  T284]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   14.094821][  T284]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   14.094959][  T284]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   14.095088][  T284]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   14.095246][  T284]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.095375][  T284]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.095507][  T284]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.095633][  T284]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.095769][  T284]  ? __kernel_text_address (kernel/extable.c:79)
[   14.095902][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.096031][  T284]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.096158][  T284]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   14.096285][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.096413][  T284]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.096543][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.096680][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.096808][  T284]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   14.096935][  T284]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   14.097061][  T284]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   14.097188][  T284]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   14.097318][  T284]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   14.097447][  T284]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   14.097589][  T284]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   14.097800][  T284]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.097992][  T284]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.098119][  T284]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.098250][  T284]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   14.098380][  T284]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.098522][  T284]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.098647][  T284]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.098828][  T284]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.098958][  T284]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.099085][  T284]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.099212][  T284]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   14.099340][  T284]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.099478][  T284]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.099603][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.099817][  T284]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.099943][  T284]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.100073][  T284]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   14.100201][  T284]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.100334][  T284]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.100467][  T284]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   14.100593][  T284]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   14.100791][  T284]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.100918][  T284]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.101046][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.101174][  T284]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   14.101316][  T284]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   14.101443][  T284]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   14.101574][  T284]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   14.101765][  T284]  ? copy_msghdr_from_user (net/socket.c:2635)
[   14.101892][  T284]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   14.102047][  T284]  ? move_addr_to_kernel (net/socket.c:258)
[   14.102184][  T284]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.102310][  T284]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.102438][  T284]  ___sys_sendmsg (net/socket.c:2752)
[   14.102568][  T284]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   14.102758][  T284]  ? copy_msghdr_from_user (net/socket.c:2603)
[   14.102896][  T284]  __sys_sendmsg (net/socket.c:2784)
[   14.103030][  T284]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   14.103159][  T284]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   14.103319][  T284]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   14.103447][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.103583][  T284]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.103714][  T284]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.103849][  T284]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.103975][  T284]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.104131][  T284] RIP: 0033:0x7f93c43d208e
[   14.104263][  T284] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   14.104729][  T284] RSP: 002b:00007fff782d2230 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.104919][  T284] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f93c43d208e
[   14.105107][  T284] RDX: 0000000000000000 RSI: 00007fff782d22e0 RDI: 0000000000000005
[   14.105295][  T284] RBP: 00007fff782d2240 R08: 0000000000000000 R09: 0000000000000000
[   14.105488][  T284] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac5
[   14.105686][  T284] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff782d29b0
| [   14.233018][  T287] ------------[ cut here ]------------
| [   14.233189][  T287] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/287
| [   14.233436][  T287] Modules linked in: ipvtap ipvlan
| [   14.233868][  T287] Tainted: [W]=WARN
[   14.233972][  T287] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.234148][  T287] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.234332][  T287] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.234829][  T287] RSP: 0018:ffa0000000ae70b0 EFLAGS: 00010286
[   14.235002][  T287] RAX: 00000000ffffffa6 RBX: ff11000009490200 RCX: 1ff400000015cddc
[   14.235216][  T287] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000094902bc
[   14.235419][  T287] RBP: ff11000007edc000 R08: 1fe2200001292059 R09: ff11000012bd0b80
[   14.235631][  T287] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   14.235840][  T287] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   14.236055][  T287] FS:  00007fb7c7d51840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.236297][  T287] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.236473][  T287] CR2: 0000000000445730 CR3: 0000000012197004 CR4: 0000000000771ef0
[   14.236683][  T287] PKRU: 55555554
[   14.236787][  T287] Call Trace:
[   14.236889][  T287]  <TASK>
[   14.236968][  T287]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.237106][  T287]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   14.237244][  T287]  notifier_call_chain (kernel/notifier.c:85)
[   14.237383][  T287]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   14.237524][  T287]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.237665][  T287]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   14.237802][  T287]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   14.237915][  T287]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   14.238089][  T287]  ? ida_destroy (lib/idr.c:623)
[   14.238228][  T287]  netdev_upper_dev_link (net/core/dev.c:8972)
[   14.238364][  T287]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   14.238508][  T287] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   14.238648][  T287]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   14.238796][  T287]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   14.238936][  T287] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   14.239074][  T287]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   14.239213][  T287]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   14.239350][  T287]  ? __dev_get_by_name (net/core/dev.c:883)
[   14.239490][  T287]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   14.239633][  T287]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   14.239786][  T287]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   14.239925][  T287]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.240063][  T287]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.240199][  T287]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.240336][  T287]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   14.240475][  T287]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.240622][  T287]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.240772][  T287]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.240908][  T287]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   14.241046][  T287]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.241183][  T287]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.241319][  T287]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.241458][  T287]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.241605][  T287]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.241749][  T287]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   14.241891][  T287]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.242029][  T287]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.242170][  T287]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   14.242306][  T287]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   14.242452][  T287]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.242595][  T287]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.242737][  T287]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.242876][  T287]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   14.243016][  T287]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   14.243155][  T287]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   14.243294][  T287]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   14.243439][  T287]  ? copy_msghdr_from_user (net/socket.c:2635)
[   14.243580][  T287]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   14.243755][  T287]  ? move_addr_to_kernel (net/socket.c:258)
[   14.243896][  T287]  ___sys_sendmsg (net/socket.c:2752)
[   14.244032][  T287]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.244170][  T287]  ? copy_msghdr_from_user (net/socket.c:2603)
[   14.244322][  T287]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   14.244461][  T287]  __sys_sendmsg (net/socket.c:2784)
[   14.244603][  T287]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   14.244750][  T287]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.244886][  T287]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.245024][  T287]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.245167][  T287]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.245305][  T287]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.245443][  T287]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.245615][  T287] RIP: 0033:0x7fb7c7f8b08e
[   14.245763][  T287] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   14.246259][  T287] RSP: 002b:00007ffe77aa5a00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.246469][  T287] RAX: ffffffffffffffda RBX: 00007ffe77aa61b8 RCX: 00007fb7c7f8b08e
[   14.246680][  T287] RDX: 0000000000000000 RSI: 00007ffe77aa5ab0 RDI: 0000000000000005
[   14.246885][  T287] RBP: 00007ffe77aa5a10 R08: 0000000000000000 R09: 0000000000000000
[   14.247097][  T287] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac5
[   14.247302][  T287] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe77aa6170
| [   14.248924][  T287] ------------[ cut here ]------------
| [   14.249052][  T287] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/287
| [   14.249275][  T287] Modules linked in: ipvtap ipvlan
| [   14.249684][  T287] Tainted: [W]=WARN
[   14.249789][  T287] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.249953][  T287] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.250123][  T287] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.250599][  T287] RSP: 0018:ffa0000000ae71b0 EFLAGS: 00010286
[   14.250967][  T287] RAX: 00000000ffffffa6 RBX: ff11000009490e40 RCX: 1ff400000015cdfc
[   14.251163][  T287] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009490efc
[   14.251357][  T287] RBP: ff11000012dc2000 R08: 1fe22000012921e1 R09: ff11000012bd0b80
[   14.251558][  T287] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.251838][  T287] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   14.252034][  T287] FS:  00007fb7c7d51840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.252263][  T287] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.252427][  T287] CR2: 0000000000445730 CR3: 0000000012197004 CR4: 0000000000771ef0
[   14.252635][  T287] PKRU: 55555554
[   14.252821][  T287] Call Trace:
[   14.252994][  T287]  <TASK>
[   14.253063][  T287]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.253195][  T287]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.253295][  T287]  ? ida_destroy (lib/idr.c:623)
[   14.253426][  T287]  __dev_notify_flags (net/core/dev.c:9787)
[   14.253565][  T287]  ? netif_change_name (net/core/dev.c:1495)
[   14.253774][  T287]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.253905][  T287]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   14.254069][  T287]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   14.254232][  T287]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   14.254363][  T287]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   14.254501][  T287]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   14.254645][  T287]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   14.254844][  T287]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   14.254979][  T287]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   14.255110][  T287]  ? __dev_get_by_name (net/core/dev.c:883)
[   14.255242][  T287]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   14.255379][  T287]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   14.255524][  T287]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   14.255744][  T287]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.255875][  T287]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.256006][  T287]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.256137][  T287]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   14.256267][  T287]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.256402][  T287]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.256546][  T287]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.256728][  T287]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   14.256860][  T287]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.256990][  T287]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.257119][  T287]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.257254][  T287]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.257390][  T287]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.257528][  T287]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   14.257663][  T287]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.257795][  T287]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.257930][  T287]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   14.258060][  T287]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   14.258194][  T287]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.258333][  T287]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.258468][  T287]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.258602][  T287]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   14.258740][  T287]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   14.258872][  T287]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   14.259005][  T287]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   14.259143][  T287]  ? copy_msghdr_from_user (net/socket.c:2635)
[   14.259275][  T287]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   14.259438][  T287]  ? move_addr_to_kernel (net/socket.c:258)
[   14.259579][  T287]  ___sys_sendmsg (net/socket.c:2752)
[   14.259719][  T287]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.259850][  T287]  ? copy_msghdr_from_user (net/socket.c:2603)
[   14.259990][  T287]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   14.260130][  T287]  __sys_sendmsg (net/socket.c:2784)
[   14.260261][  T287]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   14.260397][  T287]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.260531][  T287]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.260667][  T287]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.260799][  T287]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.260936][  T287]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.261067][  T287]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.261230][  T287] RIP: 0033:0x7fb7c7f8b08e
[   14.261367][  T287] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   14.261849][  T287] RSP: 002b:00007ffe77aa5a00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.262047][  T287] RAX: ffffffffffffffda RBX: 00007ffe77aa61b8 RCX: 00007fb7c7f8b08e
[   14.262244][  T287] RDX: 0000000000000000 RSI: 00007ffe77aa5ab0 RDI: 0000000000000005
[   14.262438][  T287] RBP: 00007ffe77aa5a10 R08: 0000000000000000 R09: 0000000000000000
[   14.262645][  T287] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac5
[   14.262846][  T287] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe77aa6170
| [   14.322392][  T289] ------------[ cut here ]------------
| [   14.322563][  T289] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/289
| [   14.323344][  T289] Modules linked in: ipvtap ipvlan
| [   14.323761][  T289] Tainted: [W]=WARN
[   14.323859][  T289] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.324022][  T289] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.324190][  T289] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.324668][  T289] RSP: 0018:ffa0000000557a80 EFLAGS: 00010286
[   14.324835][  T289] RAX: 00000000ffffffa6 RBX: ff1100000c318580 RCX: 1ff40000000aaf16
[   14.325030][  T289] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c31863c
[   14.325224][  T289] RBP: ff11000005fe1000 R08: 1fe22000018630c9 R09: ff11000012bd5180
[   14.325418][  T289] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.325616][  T289] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005fe1000
[   14.325816][  T289] FS:  00007f674b7d1840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.326046][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.326209][  T289] CR2: 00007f674b9d8430 CR3: 0000000012185006 CR4: 0000000000771ef0
[   14.326404][  T289] PKRU: 55555554
[   14.326507][  T289] Call Trace:
[   14.326603][  T289]  <TASK>
[   14.326677][  T289]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.326828][  T289]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.326959][  T289]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.327059][  T289]  register_netdevice (net/core/dev.c:11488)
[   14.327193][  T289]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.327355][  T289]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.327497][  T289]  register_netdev (net/core/dev.c:11552)
[   14.327629][  T289]  loopback_net_init (drivers/net/loopback.c:218)
[   14.327764][  T289]  ops_init (net/core/net_namespace.c:137)
[   14.327864][  T289]  setup_net (net/core/net_namespace.c:446)
[   14.327962][  T289]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.328090][  T289]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.328222][  T289]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.328355][  T289]  copy_net_ns (net/core/net_namespace.c:579)
[   14.328489][  T289]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.328624][  T289]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.328759][  T289]  ksys_unshare (kernel/fork.c:3243)
[   14.328888][  T289]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.329018][  T289]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.329148][  T289]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.329281][  T289]  ? __ia32_sys_open (fs/open.c:1374)
[   14.329413][  T289]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.329552][  T289]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.329687][  T289]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.329818][  T289]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.329947][  T289]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.330077][  T289]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.330237][  T289] RIP: 0033:0x7f674ba93bcb
[   14.330373][  T289] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.330845][  T289] RSP: 002b:00007ffe84492a98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   14.331040][  T289] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f674ba93bcb
[   14.331233][  T289] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.331432][  T289] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.331629][  T289] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe84494cc0
[   14.331826][  T289] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe8449687e
| [   14.336035][  T289] ------------[ cut here ]------------
| [   14.336170][  T289] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/289
| [   14.336395][  T289] Modules linked in: ipvtap ipvlan
| [   14.336806][  T289] Tainted: [W]=WARN
[   14.336904][  T289] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.337068][  T289] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.337235][  T289] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.337699][  T289] RSP: 0018:ffa0000000557918 EFLAGS: 00010286
[   14.337862][  T289] RAX: 00000000ffffffa6 RBX: ff110000104d5380 RCX: 1ff40000000aaee9
[   14.338053][  T289] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104d543c
[   14.338244][  T289] RBP: ff1100000ea81000 R08: 1fe220000209aa89 R09: ff11000012bd5180
[   14.338437][  T289] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.338635][  T289] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ea81000
[   14.338837][  T289] FS:  00007f674b7d1840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.339064][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.339226][  T289] CR2: 00007f674b9d8430 CR3: 0000000012185006 CR4: 0000000000771ef0
[   14.339420][  T289] PKRU: 55555554
[   14.339520][  T289] Call Trace:
[   14.339618][  T289]  <TASK>
[   14.339689][  T289]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.339818][  T289]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.339947][  T289]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.340047][  T289]  register_netdevice (net/core/dev.c:11488)
[   14.340180][  T289]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.340341][  T289]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.340477][  T289]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   14.340609][  T289]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   14.340742][  T289]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   14.340874][  T289]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   14.341004][  T289]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   14.341137][  T289]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   14.341268][  T289]  ops_init (net/core/net_namespace.c:137)
[   14.341367][  T289]  setup_net (net/core/net_namespace.c:446)
[   14.341469][  T289]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.341599][  T289]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.341730][  T289]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.341861][  T289]  copy_net_ns (net/core/net_namespace.c:579)
[   14.341992][  T289]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.342124][  T289]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.342254][  T289]  ksys_unshare (kernel/fork.c:3243)
[   14.342383][  T289]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.342515][  T289]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.342645][  T289]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.342781][  T289]  ? __ia32_sys_open (fs/open.c:1374)
[   14.342914][  T289]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.343042][  T289]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.343170][  T289]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.343299][  T289]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.343430][  T289]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.343565][  T289]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.343732][  T289] RIP: 0033:0x7f674ba93bcb
[   14.343866][  T289] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.344324][  T289] RSP: 002b:00007ffe84492a98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   14.344527][  T289] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f674ba93bcb
[   14.344730][  T289] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.344925][  T289] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.345118][  T289] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe84494cc0
[   14.345312][  T289] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe8449687e
| [   14.349488][  T289] ------------[ cut here ]------------
| [   14.349619][  T289] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/289
| [   14.349848][  T289] Modules linked in: ipvtap ipvlan
| [   14.350247][  T289] Tainted: [W]=WARN
[   14.350345][  T289] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.350512][  T289] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.350687][  T289] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.351153][  T289] RSP: 0018:ffa00000005578f8 EFLAGS: 00010286
[   14.351318][  T289] RAX: 00000000ffffffa6 RBX: ff1100000c8831c0 RCX: 1ff40000000aaee5
[   14.351517][  T289] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c88327c
[   14.351716][  T289] RBP: ff11000005151000 R08: 1fe2200001910651 R09: ff11000012bd5180
[   14.351911][  T289] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.352106][  T289] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005151000
[   14.352302][  T289] FS:  00007f674b7d1840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.352535][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.352702][  T289] CR2: 00007f674b9d8430 CR3: 0000000012185006 CR4: 0000000000771ef0
[   14.352900][  T289] PKRU: 55555554
[   14.352998][  T289] Call Trace:
[   14.353097][  T289]  <TASK>
[   14.353165][  T289]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.353297][  T289]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.353429][  T289]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.353534][  T289]  register_netdevice (net/core/dev.c:11488)
[   14.353670][  T289]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.353834][  T289]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.353968][  T289]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   14.354100][  T289]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   14.354232][  T289]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   14.354365][  T289]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   14.354503][  T289]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   14.354637][  T289]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   14.354776][  T289]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   14.354912][  T289]  vti_init_net (net/ipv4/ip_vti.c:517)
[   14.355045][  T289]  ops_init (net/core/net_namespace.c:137)
[   14.355147][  T289]  setup_net (net/core/net_namespace.c:446)
[   14.355247][  T289]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.355379][  T289]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.355517][  T289]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.355656][  T289]  copy_net_ns (net/core/net_namespace.c:579)
[   14.355791][  T289]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.355925][  T289]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.356059][  T289]  ksys_unshare (kernel/fork.c:3243)
[   14.356192][  T289]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.356323][  T289]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.356455][  T289]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.356593][  T289]  ? __ia32_sys_open (fs/open.c:1374)
[   14.356732][  T289]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.356864][  T289]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.356997][  T289]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.357128][  T289]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.357259][  T289]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.357391][  T289]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.357564][  T289] RIP: 0033:0x7f674ba93bcb
[   14.357704][  T289] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.358170][  T289] RSP: 002b:00007ffe84492a98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   14.358369][  T289] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f674ba93bcb
[   14.358571][  T289] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.358774][  T289] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.358970][  T289] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe84494cc0
[   14.359167][  T289] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe8449687e
| [   14.363337][  T289] ------------[ cut here ]------------
| [   14.363477][  T289] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/289
| [   14.363709][  T289] Modules linked in: ipvtap ipvlan
| [   14.364104][  T289] Tainted: [W]=WARN
[   14.364202][  T289] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.364364][  T289] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.364539][  T289] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.365006][  T289] RSP: 0018:ffa0000000557a78 EFLAGS: 00010286
[   14.365169][  T289] RAX: 00000000ffffffa6 RBX: ff1100000c882e40 RCX: 1ff40000000aaf15
[   14.365363][  T289] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c882efc
[   14.365561][  T289] RBP: ff11000012f19000 R08: 1fe22000019105e1 R09: ff11000012bd5180
[   14.365760][  T289] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.365953][  T289] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012f19000
[   14.366151][  T289] FS:  00007f674b7d1840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.366377][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.366544][  T289] CR2: 00007f674b9d8430 CR3: 0000000012185006 CR4: 0000000000771ef0
[   14.366746][  T289] PKRU: 55555554
[   14.366843][  T289] Call Trace:
[   14.366941][  T289]  <TASK>
[   14.367008][  T289]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.367140][  T289]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.367270][  T289]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.367370][  T289]  register_netdevice (net/core/dev.c:11488)
[   14.367508][  T289]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.367677][  T289]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.367811][  T289]  register_netdev (net/core/dev.c:11552)
[   14.367942][  T289]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   14.368073][  T289]  ops_init (net/core/net_namespace.c:137)
[   14.368172][  T289]  setup_net (net/core/net_namespace.c:446)
[   14.368270][  T289]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.368399][  T289]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.368534][  T289]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.368669][  T289]  copy_net_ns (net/core/net_namespace.c:579)
[   14.368801][  T289]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.368936][  T289]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.369066][  T289]  ksys_unshare (kernel/fork.c:3243)
[   14.369197][  T289]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.369327][  T289]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.369458][  T289]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.369594][  T289]  ? __ia32_sys_open (fs/open.c:1374)
[   14.369731][  T289]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.369861][  T289]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.369991][  T289]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.370123][  T289]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.370253][  T289]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.370384][  T289]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.370549][  T289] RIP: 0033:0x7f674ba93bcb
[   14.370689][  T289] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.371151][  T289] RSP: 002b:00007ffe84492a98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   14.371344][  T289] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f674ba93bcb
[   14.371539][  T289] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.371739][  T289] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.371932][  T289] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe84494cc0
[   14.372125][  T289] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe8449687e
| [   14.385999][  T289] ------------[ cut here ]------------
| [   14.386154][  T289] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/289
| [   14.386382][  T289] Modules linked in: ipvtap ipvlan
| [   14.386795][  T289] Tainted: [W]=WARN
[   14.386942][  T289] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.387140][  T289] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.387323][  T289] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.387805][  T289] RSP: 0018:ffa0000000557a68 EFLAGS: 00010286
[   14.387968][  T289] RAX: 00000000ffffffa6 RBX: ff1100001078c040 RCX: 1ff40000000aaf13
[   14.388164][  T289] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001078c0fc
[   14.388358][  T289] RBP: ff11000012f3c000 R08: 1fe22000020f1821 R09: ff11000012bd5180
[   14.388563][  T289] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.388761][  T289] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012f3c000
[   14.388958][  T289] FS:  00007f674b7d1840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.389187][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.389350][  T289] CR2: 00007f674b9d8430 CR3: 0000000012185006 CR4: 0000000000771ef0
[   14.389553][  T289] PKRU: 55555554
[   14.389655][  T289] Call Trace:
[   14.389753][  T289]  <TASK>
[   14.389821][  T289]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.389951][  T289]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.390081][  T289]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.390181][  T289]  register_netdevice (net/core/dev.c:11488)
[   14.390314][  T289]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.390481][  T289]  register_netdev (net/core/dev.c:11552)
[   14.390610][  T289]  sit_init_net (net/ipv6/sit.c:1860)
[   14.390748][  T289]  ops_init (net/core/net_namespace.c:137)
[   14.390848][  T289]  setup_net (net/core/net_namespace.c:446)
[   14.390947][  T289]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.391076][  T289]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.391208][  T289]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.391341][  T289]  copy_net_ns (net/core/net_namespace.c:579)
[   14.391474][  T289]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.391607][  T289]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.391743][  T289]  ksys_unshare (kernel/fork.c:3243)
[   14.391872][  T289]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.392002][  T289]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.392134][  T289]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.392265][  T289]  ? __ia32_sys_open (fs/open.c:1374)
[   14.392396][  T289]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.392529][  T289]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.392662][  T289]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.392792][  T289]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.392921][  T289]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.393050][  T289]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.393211][  T289] RIP: 0033:0x7f674ba93bcb
[   14.393346][  T289] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.393814][  T289] RSP: 002b:00007ffe84492a98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   14.394009][  T289] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f674ba93bcb
[   14.394203][  T289] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.394396][  T289] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.394591][  T289] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe84494cc0
[   14.394795][  T289] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe8449687e
| [   14.399368][  T289] ------------[ cut here ]------------
| [   14.399505][  T289] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/289
| [   14.399739][  T289] Modules linked in: ipvtap ipvlan
| [   14.400132][  T289] Tainted: [W]=WARN
[   14.400229][  T289] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.400391][  T289] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.400565][  T289] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.401030][  T289] RSP: 0018:ffa0000000557a78 EFLAGS: 00010286
[   14.401195][  T289] RAX: 00000000ffffffa6 RBX: ff1100000c67b380 RCX: 1ff40000000aaf15
[   14.401388][  T289] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c67b43c
[   14.401585][  T289] RBP: ff1100000ff64000 R08: 1fe22000018cf689 R09: ff11000012bd5180
[   14.401783][  T289] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.401976][  T289] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ff64000
[   14.402171][  T289] FS:  00007f674b7d1840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.402406][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.402570][  T289] CR2: 00007f674b9d8430 CR3: 0000000012185006 CR4: 0000000000771ef0
[   14.402770][  T289] PKRU: 55555554
[   14.402867][  T289] Call Trace:
[   14.402964][  T289]  <TASK>
[   14.403030][  T289]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.403161][  T289]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.403294][  T289]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.403395][  T289]  register_netdevice (net/core/dev.c:11488)
[   14.403529][  T289]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.403696][  T289]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.403829][  T289]  register_netdev (net/core/dev.c:11552)
[   14.403958][  T289]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   14.404089][  T289]  ops_init (net/core/net_namespace.c:137)
[   14.404191][  T289]  setup_net (net/core/net_namespace.c:446)
[   14.404290][  T289]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.404419][  T289]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.404558][  T289]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.404695][  T289]  copy_net_ns (net/core/net_namespace.c:579)
[   14.404827][  T289]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.404961][  T289]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.405092][  T289]  ksys_unshare (kernel/fork.c:3243)
[   14.405222][  T289]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.405354][  T289]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.405491][  T289]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.405623][  T289]  ? __ia32_sys_open (fs/open.c:1374)
[   14.405761][  T289]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.405892][  T289]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.406025][  T289]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.406155][  T289]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.406286][  T289]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.406416][  T289]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.406585][  T289] RIP: 0033:0x7f674ba93bcb
[   14.406727][  T289] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.407191][  T289] RSP: 002b:00007ffe84492a98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   14.407386][  T289] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f674ba93bcb
[   14.407585][  T289] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.407782][  T289] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.407976][  T289] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe84494cc0
[   14.408170][  T289] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe8449687e
| [   14.448235][  T290] ------------[ cut here ]------------
| [   14.448382][  T290] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/290
| [   14.448617][  T290] Modules linked in: ipvtap ipvlan
| [   14.449028][  T290] Tainted: [W]=WARN
[   14.449126][  T290] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.449290][  T290] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.449459][  T290] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.449930][  T290] RSP: 0018:ffa00000005f7020 EFLAGS: 00010286
[   14.450093][  T290] RAX: 00000000ffffffa6 RBX: ff1100000c318740 RCX: 1ff40000000bedca
[   14.450286][  T290] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3187fc
[   14.450482][  T290] RBP: ff11000005fe1000 R08: 1fe2200001863101 R09: ff1100000f9e0b58
[   14.450680][  T290] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   14.450871][  T290] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   14.451064][  T290] FS:  00007f347efc9840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.451290][  T290] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.451453][  T290] CR2: 0000000017583988 CR3: 0000000012153003 CR4: 0000000000771ef0
[   14.451657][  T290] PKRU: 55555554
[   14.451754][  T290] Call Trace:
[   14.451851][  T290]  <TASK>
[   14.451917][  T290]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.452048][  T290]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.452147][  T290]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   14.452277][  T290]  __dev_notify_flags (net/core/dev.c:9787)
[   14.452408][  T290]  ? netif_change_name (net/core/dev.c:1495)
[   14.452539][  T290]  ? __dev_change_flags (net/core/dev.c:9752)
[   14.452674][  T290]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   14.452803][  T290]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.452933][  T290]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   14.453065][  T290]  netif_change_flags (net/core/dev.c:9820)
[   14.453197][  T290]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   14.453328][  T290]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   14.453460][  T290]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   14.453597][  T290]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   14.453763][  T290]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.453892][  T290]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.454021][  T290]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.454150][  T290]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.454281][  T290]  ? __kernel_text_address (kernel/extable.c:79)
[   14.454412][  T290]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.454548][  T290]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.454682][  T290]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   14.454812][  T290]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.454941][  T290]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.455072][  T290]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.455200][  T290]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.455331][  T290]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   14.455461][  T290]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   14.455596][  T290]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   14.455730][  T290]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   14.455860][  T290]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   14.455992][  T290]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   14.456127][  T290]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   14.456259][  T290]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.456389][  T290]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.456523][  T290]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.456657][  T290]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   14.456787][  T290]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.456919][  T290]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.457049][  T290]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.457179][  T290]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.457309][  T290]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.457440][  T290]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.457575][  T290]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   14.457709][  T290]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.457836][  T290]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.457965][  T290]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.458097][  T290]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.458224][  T290]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.458354][  T290]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   14.458489][  T290]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.458621][  T290]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.458760][  T290]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   14.458888][  T290]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   14.459020][  T290]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.459153][  T290]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.459283][  T290]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.459414][  T290]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   14.459549][  T290]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   14.459685][  T290]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   14.459818][  T290]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   14.459949][  T290]  ? copy_msghdr_from_user (net/socket.c:2635)
[   14.460079][  T290]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   14.460239][  T290]  ? move_addr_to_kernel (net/socket.c:258)
[   14.460369][  T290]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.460504][  T290]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.460635][  T290]  ___sys_sendmsg (net/socket.c:2752)
[   14.460769][  T290]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   14.460930][  T290]  ? copy_msghdr_from_user (net/socket.c:2603)
[   14.461073][  T290]  __sys_sendmsg (net/socket.c:2784)
[   14.461205][  T290]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   14.461335][  T290]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   14.461504][  T290]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   14.461636][  T290]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.461773][  T290]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.461903][  T290]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.462033][  T290]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.462163][  T290]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.462324][  T290] RIP: 0033:0x7f347f20308e
[   14.462461][  T290] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   14.462933][  T290] RSP: 002b:00007ffce23c7ae0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.463129][  T290] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f347f20308e
[   14.463322][  T290] RDX: 0000000000000000 RSI: 00007ffce23c7b90 RDI: 0000000000000005
[   14.463522][  T290] RBP: 00007ffce23c7af0 R08: 0000000000000000 R09: 0000000000000000
[   14.463721][  T290] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac5
[   14.463916][  T290] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffce23c8260
| [   14.587813][  T293] ------------[ cut here ]------------
| [   14.587984][  T293] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/293
| [   14.588225][  T293] Modules linked in: ipvtap ipvlan
| [   14.588661][  T293] Tainted: [W]=WARN
[   14.588767][  T293] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.588940][  T293] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.589118][  T293] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.589613][  T293] RSP: 0018:ffa0000000af70b0 EFLAGS: 00010286
[   14.589791][  T293] RAX: 00000000ffffffa6 RBX: ff1100000569b700 RCX: 1ff400000015eddc
[   14.589996][  T293] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000569b7bc
[   14.590201][  T293] RBP: ff11000007edc000 R08: 1fe2200000ad36f9 R09: ff1100000f882e80
[   14.590408][  T293] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   14.590617][  T293] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   14.590829][  T293] FS:  00007f2f6cf7a840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.591068][  T293] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.591243][  T293] CR2: 0000000000445730 CR3: 000000001073a001 CR4: 0000000000771ef0
[   14.591449][  T293] PKRU: 55555554
[   14.591554][  T293] Call Trace:
[   14.591662][  T293]  <TASK>
[   14.591733][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.591872][  T293]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   14.592046][  T293]  notifier_call_chain (kernel/notifier.c:85)
[   14.592191][  T293]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   14.592329][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.592472][  T293]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   14.592610][  T293]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   14.592723][  T293]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   14.592898][  T293]  ? ida_destroy (lib/idr.c:623)
[   14.593039][  T293]  netdev_upper_dev_link (net/core/dev.c:8972)
[   14.593180][  T293]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   14.593321][  T293] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   14.593462][  T293]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   14.593605][  T293]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   14.594417][  T293] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   14.594562][  T293]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   14.594748][  T293]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   14.594891][  T293]  ? __dev_get_by_name (net/core/dev.c:883)
[   14.595029][  T293]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   14.595172][  T293]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   14.595315][  T293]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   14.595455][  T293]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.595598][  T293]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.595743][  T293]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.595882][  T293]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   14.596018][  T293]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.596161][  T293]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.596301][  T293]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.596438][  T293]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   14.596581][  T293]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.596723][  T293]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.596860][  T293]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.596999][  T293]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.597137][  T293]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.597276][  T293]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   14.597414][  T293]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.597558][  T293]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.597704][  T293]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   14.597842][  T293]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   14.597982][  T293]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.598122][  T293]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.598261][  T293]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.598401][  T293]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   14.598550][  T293]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   14.598694][  T293]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   14.598834][  T293]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   14.598973][  T293]  ? copy_msghdr_from_user (net/socket.c:2635)
[   14.599110][  T293]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   14.599281][  T293]  ? move_addr_to_kernel (net/socket.c:258)
[   14.599446][  T293]  ___sys_sendmsg (net/socket.c:2752)
[   14.599591][  T293]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.599736][  T293]  ? copy_msghdr_from_user (net/socket.c:2603)
[   14.599883][  T293]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   14.600025][  T293]  __sys_sendmsg (net/socket.c:2784)
[   14.600163][  T293]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   14.600315][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.600453][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.600598][  T293]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.600740][  T293]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.600878][  T293]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.601016][  T293]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.601195][  T293] RIP: 0033:0x7f2f6d1b408e
[   14.601339][  T293] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   14.601838][  T293] RSP: 002b:00007ffc94f6b770 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.602047][  T293] RAX: ffffffffffffffda RBX: 00007ffc94f6bf28 RCX: 00007f2f6d1b408e
[   14.602260][  T293] RDX: 0000000000000000 RSI: 00007ffc94f6b820 RDI: 0000000000000005
[   14.602468][  T293] RBP: 00007ffc94f6b780 R08: 0000000000000000 R09: 0000000000000000
[   14.602680][  T293] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac5
[   14.602886][  T293] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc94f6bee0
| [   14.604523][  T293] ------------[ cut here ]------------
| [   14.604661][  T293] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/293
| [   14.604892][  T293] Modules linked in: ipvtap ipvlan
| [   14.605290][  T293] Tainted: [W]=WARN
[   14.605389][  T293] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.605557][  T293] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.606102][  T293] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.606578][  T293] RSP: 0018:ffa0000000af71b0 EFLAGS: 00010286
[   14.606749][  T293] RAX: 00000000ffffffa6 RBX: ff1100000569b8c0 RCX: 1ff400000015edfc
[   14.606944][  T293] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000569b97c
[   14.607146][  T293] RBP: ff1100000fdb2000 R08: 1fe2200000ad3731 R09: ff1100000f882e80
[   14.607341][  T293] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.607543][  T293] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   14.607745][  T293] FS:  00007f2f6cf7a840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   14.607980][  T293] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.608143][  T293] CR2: 0000000000445730 CR3: 000000001073a001 CR4: 0000000000771ef0
[   14.608343][  T293] PKRU: 55555554
[   14.608442][  T293] Call Trace:
[   14.608558][  T293]  <TASK>
[   14.608625][  T293]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.608770][  T293]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.608869][  T293]  ? ida_destroy (lib/idr.c:623)
[   14.609001][  T293]  __dev_notify_flags (net/core/dev.c:9787)
[   14.609134][  T293]  ? netif_change_name (net/core/dev.c:1495)
[   14.609267][  T293]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.609398][  T293]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   14.609568][  T293]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   14.609741][  T293]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   14.609874][  T293]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   14.610007][  T293]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   14.610139][  T293]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   14.610273][  T293]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   14.610406][  T293]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   14.610547][  T293]  ? __dev_get_by_name (net/core/dev.c:883)
[   14.610683][  T293]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   14.610822][  T293]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   14.610958][  T293]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   14.611091][  T293]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.611223][  T293]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.611358][  T293]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.611493][  T293]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   14.611623][  T293]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.611763][  T293]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.611897][  T293]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.612028][  T293]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   14.612159][  T293]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.612297][  T293]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.612427][  T293]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.612564][  T293]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.612699][  T293]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.612831][  T293]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   14.612961][  T293]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.613100][  T293]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.613235][  T293]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   14.613366][  T293]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   14.613502][  T293]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.613634][  T293]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.613771][  T293]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.613904][  T293]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   14.614043][  T293]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   14.614175][  T293]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   14.614308][  T293]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   14.614439][  T293]  ? copy_msghdr_from_user (net/socket.c:2635)
[   14.614575][  T293]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   14.614742][  T293]  ? move_addr_to_kernel (net/socket.c:258)
[   14.614885][  T293]  ___sys_sendmsg (net/socket.c:2752)
[   14.615017][  T293]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.615148][  T293]  ? copy_msghdr_from_user (net/socket.c:2603)
[   14.615290][  T293]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   14.615423][  T293]  __sys_sendmsg (net/socket.c:2784)
[   14.615559][  T293]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   14.615699][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.615836][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.615967][  T293]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.616098][  T293]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.616228][  T293]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.616360][  T293]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.616528][  T293] RIP: 0033:0x7f2f6d1b408e
[   14.616675][  T293] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   14.617143][  T293] RSP: 002b:00007ffc94f6b770 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.617341][  T293] RAX: ffffffffffffffda RBX: 00007ffc94f6bf28 RCX: 00007f2f6d1b408e
[   14.617545][  T293] RDX: 0000000000000000 RSI: 00007ffc94f6b820 RDI: 0000000000000005
[   14.617746][  T293] RBP: 00007ffc94f6b780 R08: 0000000000000000 R09: 0000000000000000
[   14.617943][  T293] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac5
[   14.618140][  T293] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc94f6bee0
| [   14.664001][  T295] ------------[ cut here ]------------
| [   14.664146][  T295] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/295
| [   14.664375][  T295] Modules linked in: ipvtap ipvlan
| [   14.664781][  T295] Tainted: [W]=WARN
[   14.664879][  T295] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.665042][  T295] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.665208][  T295] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.665675][  T295] RSP: 0018:ffa0000000ad7a80 EFLAGS: 00010286
[   14.665837][  T295] RAX: 00000000ffffffa6 RBX: ff1100000df8ec80 RCX: 1ff400000015af16
[   14.666028][  T295] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df8ed3c
[   14.666218][  T295] RBP: ff1100000fd41000 R08: 1fe2200001bf1da9 R09: ff1100000283d180
[   14.666409][  T295] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   14.666603][  T295] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fd41000
[   14.666801][  T295] FS:  00007ff5d1757840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   14.667026][  T295] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.667187][  T295] CR2: 00007ff5d19617d0 CR3: 000000001070d006 CR4: 0000000000771ef0
[   14.667381][  T295] PKRU: 55555554
[   14.667479][  T295] Call Trace:
[   14.667576][  T295]  <TASK>
[   14.667643][  T295]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.667777][  T295]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.667906][  T295]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.668005][  T295]  register_netdevice (net/core/dev.c:11488)
[   14.668135][  T295]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.668295][  T295]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.668426][  T295]  register_netdev (net/core/dev.c:11552)
[   14.668560][  T295]  loopback_net_init (drivers/net/loopback.c:218)
[   14.668694][  T295]  ops_init (net/core/net_namespace.c:137)
[   14.668792][  T295]  setup_net (net/core/net_namespace.c:446)
[   14.668889][  T295]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.669017][  T295]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.669145][  T295]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.669274][  T295]  copy_net_ns (net/core/net_namespace.c:579)
[   14.669405][  T295]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.669542][  T295]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.669676][  T295]  ksys_unshare (kernel/fork.c:3243)
[   14.669804][  T295]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.669934][  T295]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.670062][  T295]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.670191][  T295]  ? __ia32_sys_open (fs/open.c:1374)
[   14.670323][  T295]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.670451][  T295]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.670583][  T295]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.670772][  T295]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.670901][  T295]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.671030][  T295]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.671188][  T295] RIP: 0033:0x7ff5d1a19bcb
[   14.671321][  T295] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.671840][  T295] RSP: 002b:00007ffdbb291ee8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.672035][  T295] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff5d1a19bcb
[   14.672226][  T295] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.672416][  T295] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.672615][  T295] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdbb294110
[   14.672867][  T295] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdbb29587e
| [   14.677437][  T295] ------------[ cut here ]------------
| [   14.677575][  T295] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/295
| [   14.677805][  T295] Modules linked in: ipvtap ipvlan
| [   14.678203][  T295] Tainted: [W]=WARN
[   14.678300][  T295] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.678460][  T295] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.678632][  T295] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.679098][  T295] RSP: 0018:ffa0000000ad7918 EFLAGS: 00010286
[   14.679261][  T295] RAX: 00000000ffffffa6 RBX: ff1100000d7ac900 RCX: 1ff400000015aee9
[   14.679451][  T295] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7ac9bc
[   14.679648][  T295] RBP: ff11000013019000 R08: 1fe2200001af5939 R09: ff1100000283d180
[   14.680001][  T295] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   14.680193][  T295] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013019000
[   14.680390][  T295] FS:  00007ff5d1757840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   14.680621][  T295] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.680792][  T295] CR2: 00007ff5d19617d0 CR3: 000000001070d006 CR4: 0000000000771ef0
[   14.680983][  T295] PKRU: 55555554
[   14.681078][  T295] Call Trace:
[   14.681173][  T295]  <TASK>
[   14.681240][  T295]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.681368][  T295]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.681501][  T295]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.681613][  T295]  register_netdevice (net/core/dev.c:11488)
[   14.681748][  T295]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.681906][  T295]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.682036][  T295]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   14.682164][  T295]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   14.682292][  T295]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   14.682439][  T295]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   14.682576][  T295]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   14.682711][  T295]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   14.682841][  T295]  ops_init (net/core/net_namespace.c:137)
[   14.682939][  T295]  setup_net (net/core/net_namespace.c:446)
[   14.683035][  T295]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.683163][  T295]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.683299][  T295]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.683429][  T295]  copy_net_ns (net/core/net_namespace.c:579)
[   14.683564][  T295]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.683721][  T295]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.683850][  T295]  ksys_unshare (kernel/fork.c:3243)
[   14.683977][  T295]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.684105][  T295]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.684239][  T295]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.684368][  T295]  ? __ia32_sys_open (fs/open.c:1374)
[   14.684504][  T295]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.684632][  T295]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.684762][  T295]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.684889][  T295]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.685023][  T295]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.685151][  T295]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.685308][  T295] RIP: 0033:0x7ff5d1a19bcb
[   14.685442][  T295] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.685910][  T295] RSP: 002b:00007ffdbb291ee8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.686101][  T295] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff5d1a19bcb
[   14.686293][  T295] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.686485][  T295] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.686681][  T295] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdbb294110
[   14.686877][  T295] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdbb29587e
| [   14.699023][  T295] ------------[ cut here ]------------
| [   14.699161][  T295] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/295
| [   14.699387][  T295] Modules linked in: ipvtap ipvlan
| [   14.699794][  T295] Tainted: [W]=WARN
[   14.699892][  T295] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.700054][  T295] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.700222][  T295] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.700694][  T295] RSP: 0018:ffa0000000ad78f8 EFLAGS: 00010286
[   14.700858][  T295] RAX: 00000000ffffffa6 RBX: ff1100000d7ad1c0 RCX: 1ff400000015aee5
[   14.701051][  T295] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7ad27c
[   14.701245][  T295] RBP: ff11000013031000 R08: 1fe2200001af5a51 R09: ff1100000283d180
[   14.701442][  T295] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   14.701640][  T295] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013031000
[   14.701861][  T295] FS:  00007ff5d1757840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   14.702091][  T295] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.702255][  T295] CR2: 00007ff5d19617d0 CR3: 000000001070d006 CR4: 0000000000771ef0
[   14.702450][  T295] PKRU: 55555554
[   14.702552][  T295] Call Trace:
[   14.702649][  T295]  <TASK>
[   14.702723][  T295]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.702853][  T295]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.702985][  T295]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.703086][  T295]  register_netdevice (net/core/dev.c:11488)
[   14.703218][  T295]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.703380][  T295]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.703517][  T295]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   14.703648][  T295]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   14.703784][  T295]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   14.703916][  T295]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   14.704049][  T295]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   14.704181][  T295]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   14.704312][  T295]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   14.704445][  T295]  vti_init_net (net/ipv4/ip_vti.c:517)
[   14.704580][  T295]  ops_init (net/core/net_namespace.c:137)
[   14.704760][  T295]  setup_net (net/core/net_namespace.c:446)
[   14.704861][  T295]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.704991][  T295]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.705122][  T295]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.705255][  T295]  copy_net_ns (net/core/net_namespace.c:579)
[   14.705387][  T295]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.705524][  T295]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.705660][  T295]  ksys_unshare (kernel/fork.c:3243)
[   14.705790][  T295]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.705921][  T295]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.706053][  T295]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.706185][  T295]  ? __ia32_sys_open (fs/open.c:1374)
[   14.706317][  T295]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.706447][  T295]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.706583][  T295]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.706720][  T295]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.706850][  T295]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.706982][  T295]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.707142][  T295] RIP: 0033:0x7ff5d1a19bcb
[   14.707282][  T295] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.707760][  T295] RSP: 002b:00007ffdbb291ee8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.707956][  T295] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff5d1a19bcb
[   14.708150][  T295] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.708343][  T295] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.708542][  T295] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdbb294110
[   14.708741][  T295] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdbb29587e
| [   14.712798][  T295] ------------[ cut here ]------------
| [   14.712935][  T295] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/295
| [   14.713157][  T295] Modules linked in: ipvtap ipvlan
| [   14.713553][  T295] Tainted: [W]=WARN
[   14.713650][  T295] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.713821][  T295] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.713989][  T295] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.714446][  T295] RSP: 0018:ffa0000000ad7a78 EFLAGS: 00010286
[   14.714614][  T295] RAX: 00000000ffffffa6 RBX: ff1100000d6dce40 RCX: 1ff400000015af15
[   14.714812][  T295] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d6dcefc
[   14.715004][  T295] RBP: ff1100000ea21000 R08: 1fe2200001adb9e1 R09: ff1100000283d180
[   14.715196][  T295] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   14.715388][  T295] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ea21000
[   14.715588][  T295] FS:  00007ff5d1757840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   14.715820][  T295] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.715982][  T295] CR2: 00007ff5d19617d0 CR3: 000000001070d006 CR4: 0000000000771ef0
[   14.716175][  T295] PKRU: 55555554
[   14.716272][  T295] Call Trace:
[   14.716370][  T295]  <TASK>
[   14.716437][  T295]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.716569][  T295]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.716702][  T295]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.716800][  T295]  register_netdevice (net/core/dev.c:11488)
[   14.716930][  T295]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.717089][  T295]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.717222][  T295]  register_netdev (net/core/dev.c:11552)
[   14.717353][  T295]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   14.717487][  T295]  ops_init (net/core/net_namespace.c:137)
[   14.717585][  T295]  setup_net (net/core/net_namespace.c:446)
[   14.717689][  T295]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.717816][  T295]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.717943][  T295]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.718075][  T295]  copy_net_ns (net/core/net_namespace.c:579)
[   14.718205][  T295]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.718336][  T295]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.718468][  T295]  ksys_unshare (kernel/fork.c:3243)
[   14.718597][  T295]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.718731][  T295]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.718860][  T295]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.718993][  T295]  ? __ia32_sys_open (fs/open.c:1374)
[   14.719123][  T295]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.719251][  T295]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.719379][  T295]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.719509][  T295]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.719636][  T295]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.719770][  T295]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.719928][  T295] RIP: 0033:0x7ff5d1a19bcb
[   14.720063][  T295] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.720525][  T295] RSP: 002b:00007ffdbb291ee8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.720722][  T295] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff5d1a19bcb
[   14.720915][  T295] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.721104][  T295] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.721295][  T295] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdbb294110
[   14.721491][  T295] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdbb29587e
| [   14.725568][  T295] ------------[ cut here ]------------
| [   14.725709][  T295] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/295
| [   14.725932][  T295] Modules linked in: ipvtap ipvlan
| [   14.726322][  T295] Tainted: [W]=WARN
[   14.726419][  T295] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.726584][  T295] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.726756][  T295] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.727213][  T295] RSP: 0018:ffa0000000ad7a68 EFLAGS: 00010286
[   14.727375][  T295] RAX: 00000000ffffffa6 RBX: ff11000005f19540 RCX: 1ff400000015af13
[   14.727575][  T295] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005f195fc
[   14.727773][  T295] RBP: ff1100001308c000 R08: 1fe2200000be32c1 R09: ff1100000283d180
[   14.727964][  T295] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   14.728155][  T295] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001308c000
[   14.728349][  T295] FS:  00007ff5d1757840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   14.728577][  T295] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.728744][  T295] CR2: 00007ff5d19617d0 CR3: 000000001070d006 CR4: 0000000000771ef0
[   14.728936][  T295] PKRU: 55555554
[   14.729032][  T295] Call Trace:
[   14.729126][  T295]  <TASK>
[   14.729193][  T295]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.729323][  T295]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.729452][  T295]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.729557][  T295]  register_netdevice (net/core/dev.c:11488)
[   14.729693][  T295]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.729857][  T295]  register_netdev (net/core/dev.c:11552)
[   14.729986][  T295]  sit_init_net (net/ipv6/sit.c:1860)
[   14.730118][  T295]  ops_init (net/core/net_namespace.c:137)
[   14.730218][  T295]  setup_net (net/core/net_namespace.c:446)
[   14.730317][  T295]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.730449][  T295]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.730584][  T295]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.730720][  T295]  copy_net_ns (net/core/net_namespace.c:579)
[   14.730851][  T295]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.730982][  T295]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.731112][  T295]  ksys_unshare (kernel/fork.c:3243)
[   14.731241][  T295]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.731370][  T295]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.731503][  T295]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.731632][  T295]  ? __ia32_sys_open (fs/open.c:1374)
[   14.731767][  T295]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.731895][  T295]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.732025][  T295]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.732153][  T295]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.732284][  T295]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.732413][  T295]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.732578][  T295] RIP: 0033:0x7ff5d1a19bcb
[   14.732719][  T295] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.733179][  T295] RSP: 002b:00007ffdbb291ee8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.733373][  T295] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff5d1a19bcb
[   14.733571][  T295] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.733768][  T295] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.733963][  T295] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdbb294110
[   14.734155][  T295] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdbb29587e
| [   14.739771][  T295] ------------[ cut here ]------------
| [   14.739921][  T295] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/295
| [   14.740147][  T295] Modules linked in: ipvtap ipvlan
| [   14.740545][  T295] Tainted: [W]=WARN
[   14.740642][  T295] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.740809][  T295] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.740975][  T295] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.741435][  T295] RSP: 0018:ffa0000000ad7a78 EFLAGS: 00010286
[   14.741601][  T295] RAX: 00000000ffffffa6 RBX: ff1100000d7ac580 RCX: 1ff400000015af15
[   14.741798][  T295] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7ac63c
[   14.741995][  T295] RBP: ff110000130b1000 R08: 1fe2200001af58c9 R09: ff1100000283d180
[   14.742187][  T295] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   14.742378][  T295] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000130b1000
[   14.742574][  T295] FS:  00007ff5d1757840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   14.742816][  T295] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.742977][  T295] CR2: 00007ff5d19617d0 CR3: 000000001070d006 CR4: 0000000000771ef0
[   14.743170][  T295] PKRU: 55555554
[   14.743266][  T295] Call Trace:
[   14.743362][  T295]  <TASK>
[   14.743429][  T295]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.743570][  T295]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.743702][  T295]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.743801][  T295]  register_netdevice (net/core/dev.c:11488)
[   14.743932][  T295]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.744092][  T295]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.744225][  T295]  register_netdev (net/core/dev.c:11552)
[   14.744353][  T295]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   14.744492][  T295]  ops_init (net/core/net_namespace.c:137)
[   14.744591][  T295]  setup_net (net/core/net_namespace.c:446)
[   14.744695][  T295]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.744822][  T295]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.744951][  T295]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.745081][  T295]  copy_net_ns (net/core/net_namespace.c:579)
[   14.745212][  T295]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.745349][  T295]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.745481][  T295]  ksys_unshare (kernel/fork.c:3243)
[   14.745610][  T295]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.745799][  T295]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.745930][  T295]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.746058][  T295]  ? __ia32_sys_open (fs/open.c:1374)
[   14.746198][  T295]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.746326][  T295]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.746454][  T295]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.746587][  T295]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.746773][  T295]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.746956][  T295]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.747116][  T295] RIP: 0033:0x7ff5d1a19bcb
[   14.747256][  T295] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.747774][  T295] RSP: 002b:00007ffdbb291ee8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.747968][  T295] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff5d1a19bcb
[   14.748169][  T295] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.748361][  T295] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   14.748557][  T295] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdbb294110
[   14.748804][  T295] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdbb29587e
| [   14.784571][  T296] ------------[ cut here ]------------
| [   14.784760][  T296] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/296
| [   14.785032][  T296] Modules linked in: ipvtap ipvlan
| [   14.785533][  T296] Tainted: [W]=WARN
[   14.785938][  T296] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.786238][  T296] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.786542][  T296] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.787137][  T296] RSP: 0018:ffa0000000557020 EFLAGS: 00010286
[   14.787439][  T296] RAX: 00000000ffffffa6 RBX: ff11000013065380 RCX: 1ff40000000aadca
[   14.787694][  T296] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001306543c
[   14.787942][  T296] RBP: ff1100000fd41000 R08: 1fe220000260ca89 R09: ff1100000f740b58
[   14.788193][  T296] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   14.788431][  T296] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   14.788688][  T296] FS:  00007f8973362840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   14.788961][  T296] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.789171][  T296] CR2: 00007f89736321a0 CR3: 000000000e6b7005 CR4: 0000000000771ef0
[   14.789411][  T296] PKRU: 55555554
[   14.789564][  T296] Call Trace:
[   14.789722][  T296]  <TASK>
[   14.789838][  T296]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.790017][  T296]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.790165][  T296]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   14.790341][  T296]  __dev_notify_flags (net/core/dev.c:9787)
[   14.790534][  T296]  ? netif_change_name (net/core/dev.c:1495)
[   14.790724][  T296]  ? __dev_change_flags (net/core/dev.c:9752)
[   14.790903][  T296]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   14.791079][  T296]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.791258][  T296]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   14.791440][  T296]  netif_change_flags (net/core/dev.c:9820)
[   14.791627][  T296]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   14.791821][  T296]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   14.792001][  T296]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   14.792179][  T296]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   14.792388][  T296]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.792575][  T296]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.792779][  T296]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.792959][  T296]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.793176][  T296]  ? __kernel_text_address (kernel/extable.c:79)
[   14.793356][  T296]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.793544][  T296]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.793735][  T296]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   14.793915][  T296]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.794094][  T296]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.794270][  T296]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.794451][  T296]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.794637][  T296]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   14.794827][  T296]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   14.795004][  T296]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   14.795182][  T296]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   14.795362][  T296]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   14.795550][  T296]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   14.795741][  T296]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   14.795925][  T296]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.796101][  T296]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.796280][  T296]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.796457][  T296]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   14.796646][  T296]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.796841][  T296]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.797017][  T296]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.797202][  T296]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.797382][  T296]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.797570][  T296]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.797762][  T296]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   14.797941][  T296]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.798119][  T296]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.798296][  T296]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.798486][  T296]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.798678][  T296]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.798860][  T296]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   14.799036][  T296]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.799215][  T296]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.799398][  T296]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   14.799580][  T296]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   14.799772][  T296]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.799954][  T296]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.800133][  T296]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.800313][  T296]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   14.800499][  T296]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   14.800691][  T296]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   14.800872][  T296]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   14.801051][  T296]  ? copy_msghdr_from_user (net/socket.c:2635)
[   14.801229][  T296]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   14.801440][  T296]  ? move_addr_to_kernel (net/socket.c:258)
[   14.801628][  T296]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.801819][  T296]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.801998][  T296]  ___sys_sendmsg (net/socket.c:2752)
[   14.802174][  T296]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   14.802383][  T296]  ? copy_msghdr_from_user (net/socket.c:2603)
[   14.802581][  T296]  __sys_sendmsg (net/socket.c:2784)
[   14.802776][  T296]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   14.802952][  T296]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   14.803162][  T296]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   14.803341][  T296]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.803528][  T296]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.803720][  T296]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.803897][  T296]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.804078][  T296]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.804288][  T296] RIP: 0033:0x7f897359c08e
[   14.804480][  T296] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   14.805001][  T296] RSP: 002b:00007ffd5d992d10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.805245][  T296] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f897359c08e
[   14.805491][  T296] RDX: 0000000000000000 RSI: 00007ffd5d992dc0 RDI: 0000000000000005
[   14.805747][  T296] RBP: 00007ffd5d992d20 R08: 0000000000000000 R09: 0000000000000000
[   14.805987][  T296] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac6
[   14.806230][  T296] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd5d993490
| [   14.926100][  T299] ------------[ cut here ]------------
| [   14.926304][  T299] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/299
| [   14.926559][  T299] Modules linked in: ipvtap ipvlan
| [   14.927586][  T299] Tainted: [W]=WARN
[   14.927777][  T299] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.928047][  T299] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.928229][  T299] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.928841][  T299] RSP: 0018:ffa0000000b270b0 EFLAGS: 00010286
[   14.929019][  T299] RAX: 00000000ffffffa6 RBX: ff11000013065700 RCX: 1ff4000000164ddc
[   14.929250][  T299] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000130657bc
[   14.929459][  T299] RBP: ff11000007edc000 R08: 1fe220000260caf9 R09: ff1100000a270b80
[   14.929744][  T299] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   14.929974][  T299] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   14.930195][  T299] FS:  00007f3a66bb7840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   14.930437][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.930614][  T299] CR2: 0000000000445730 CR3: 000000000aa56005 CR4: 0000000000771ef0
[   14.930885][  T299] PKRU: 55555554
[   14.931011][  T299] Call Trace:
[   14.931114][  T299]  <TASK>
[   14.931185][  T299]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.931323][  T299]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   14.931461][  T299]  notifier_call_chain (kernel/notifier.c:85)
[   14.931606][  T299]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   14.931826][  T299]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.931967][  T299]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   14.932104][  T299]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   14.932210][  T299]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   14.932384][  T299]  ? ida_destroy (lib/idr.c:623)
[   14.932551][  T299]  netdev_upper_dev_link (net/core/dev.c:8972)
[   14.932743][  T299]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   14.932884][  T299] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   14.933027][  T299]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   14.933166][  T299]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   14.933318][  T299] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   14.933458][  T299]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   14.933604][  T299]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   14.933749][  T299]  ? __dev_get_by_name (net/core/dev.c:883)
[   14.933888][  T299]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   14.934034][  T299]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   14.934178][  T299]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   14.934318][  T299]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.934456][  T299]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.934602][  T299]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.934747][  T299]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   14.934885][  T299]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.935029][  T299]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.935168][  T299]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.935307][  T299]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   14.935444][  T299]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.935585][  T299]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.935729][  T299]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.935869][  T299]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.936006][  T299]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.936147][  T299]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   14.936308][  T299]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.936447][  T299]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.936593][  T299]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   14.936735][  T299]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   14.936875][  T299]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.937015][  T299]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.937163][  T299]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.937303][  T299]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   14.937443][  T299]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   14.937586][  T299]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   14.937732][  T299]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   14.937870][  T299]  ? copy_msghdr_from_user (net/socket.c:2635)
[   14.938009][  T299]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   14.938179][  T299]  ? move_addr_to_kernel (net/socket.c:258)
[   14.938323][  T299]  ___sys_sendmsg (net/socket.c:2752)
[   14.938460][  T299]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.938603][  T299]  ? copy_msghdr_from_user (net/socket.c:2603)
[   14.938757][  T299]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   14.938920][  T299]  __sys_sendmsg (net/socket.c:2784)
[   14.939069][  T299]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   14.939214][  T299]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.939353][  T299]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.939493][  T299]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.939631][  T299]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.939774][  T299]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.939915][  T299]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.940088][  T299] RIP: 0033:0x7f3a66df108e
[   14.940271][  T299] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   14.940785][  T299] RSP: 002b:00007ffe2aa045b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.940991][  T299] RAX: ffffffffffffffda RBX: 00007ffe2aa04d68 RCX: 00007f3a66df108e
[   14.941197][  T299] RDX: 0000000000000000 RSI: 00007ffe2aa04660 RDI: 0000000000000005
[   14.941403][  T299] RBP: 00007ffe2aa045c0 R08: 0000000000000000 R09: 0000000000000000
[   14.941614][  T299] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac6
[   14.941827][  T299] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe2aa04d20
| [   14.943522][  T299] ------------[ cut here ]------------
| [   14.943672][  T299] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/299
| [   14.943898][  T299] Modules linked in: ipvtap ipvlan
| [   14.944341][  T299] Tainted: [W]=WARN
[   14.944439][  T299] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.944608][  T299] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.944789][  T299] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.945315][  T299] RSP: 0018:ffa0000000b271b0 EFLAGS: 00010286
[   14.945483][  T299] RAX: 00000000ffffffa6 RBX: ff110000130658c0 RCX: 1ff4000000164dfc
[   14.945686][  T299] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001306597c
[   14.945880][  T299] RBP: ff110000130e2000 R08: 1fe220000260cb31 R09: ff1100000a270b80
[   14.946098][  T299] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   14.946298][  T299] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   14.946498][  T299] FS:  00007f3a66bb7840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   14.946731][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.946920][  T299] CR2: 00007ffe374dc558 CR3: 000000000aa56006 CR4: 0000000000771ef0
[   14.947122][  T299] PKRU: 55555554
[   14.947219][  T299] Call Trace:
[   14.947315][  T299]  <TASK>
[   14.947383][  T299]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.947521][  T299]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.947628][  T299]  ? ida_destroy (lib/idr.c:623)
[   14.947776][  T299]  __dev_notify_flags (net/core/dev.c:9787)
[   14.947915][  T299]  ? netif_change_name (net/core/dev.c:1495)
[   14.948045][  T299]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.948175][  T299]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   14.948339][  T299]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   14.948503][  T299]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   14.948634][  T299]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   14.948780][  T299]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   14.948911][  T299]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   14.949042][  T299]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   14.949174][  T299]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   14.949304][  T299]  ? __dev_get_by_name (net/core/dev.c:883)
[   14.949455][  T299]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   14.949604][  T299]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   14.949760][  T299]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   14.949897][  T299]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.950028][  T299]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.950158][  T299]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.950288][  T299]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   14.950419][  T299]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.950565][  T299]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.950699][  T299]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   14.950829][  T299]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   14.950986][  T299]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.951116][  T299]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.951246][  T299]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.951378][  T299]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.951519][  T299]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.951656][  T299]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   14.951786][  T299]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.951936][  T299]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.952071][  T299]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   14.952200][  T299]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   14.952341][  T299]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.952477][  T299]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.952608][  T299]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.952745][  T299]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   14.952885][  T299]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   14.953019][  T299]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   14.953155][  T299]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   14.953297][  T299]  ? copy_msghdr_from_user (net/socket.c:2635)
[   14.953426][  T299]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   14.953592][  T299]  ? move_addr_to_kernel (net/socket.c:258)
[   14.953732][  T299]  ___sys_sendmsg (net/socket.c:2752)
[   14.953862][  T299]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.953994][  T299]  ? copy_msghdr_from_user (net/socket.c:2603)
[   14.954146][  T299]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   14.954281][  T299]  __sys_sendmsg (net/socket.c:2784)
[   14.954411][  T299]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   14.954552][  T299]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.954688][  T299]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.954819][  T299]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.954951][  T299]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.955096][  T299]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.955226][  T299]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.955388][  T299] RIP: 0033:0x7f3a66df108e
[   14.955528][  T299] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   14.956010][  T299] RSP: 002b:00007ffe2aa045b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.956206][  T299] RAX: ffffffffffffffda RBX: 00007ffe2aa04d68 RCX: 00007f3a66df108e
[   14.956400][  T299] RDX: 0000000000000000 RSI: 00007ffe2aa04660 RDI: 0000000000000005
[   14.956601][  T299] RBP: 00007ffe2aa045c0 R08: 0000000000000000 R09: 0000000000000000
[   14.956814][  T299] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac6
[   14.957030][  T299] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe2aa04d20
| [   15.016363][  T301] ------------[ cut here ]------------
| [   15.016528][  T301] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/301
| [   15.016768][  T301] Modules linked in: ipvtap ipvlan
| [   15.017167][  T301] Tainted: [W]=WARN
[   15.017266][  T301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.017430][  T301] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.017609][  T301] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.018380][  T301] RSP: 0018:ffa0000000af7a80 EFLAGS: 00010286
[   15.018551][  T301] RAX: 00000000ffffffa6 RBX: ff1100000d7ac3c0 RCX: 1ff400000015ef16
[   15.018749][  T301] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7ac47c
[   15.018943][  T301] RBP: ff1100000f8b4000 R08: 1fe2200001af5891 R09: ff1100000f99d180
[   15.019138][  T301] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.019330][  T301] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f8b4000
[   15.019530][  T301] FS:  00007f4a13708840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   15.019762][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.019924][  T301] CR2: 00007f4a139127d0 CR3: 0000000012127004 CR4: 0000000000771ef0
[   15.020121][  T301] PKRU: 55555554
[   15.020219][  T301] Call Trace:
[   15.020316][  T301]  <TASK>
[   15.020383][  T301]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.020517][  T301]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.020648][  T301]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.020753][  T301]  register_netdevice (net/core/dev.c:11488)
[   15.020886][  T301]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.021048][  T301]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.021179][  T301]  register_netdev (net/core/dev.c:11552)
[   15.021308][  T301]  loopback_net_init (drivers/net/loopback.c:218)
[   15.021439][  T301]  ops_init (net/core/net_namespace.c:137)
[   15.021545][  T301]  setup_net (net/core/net_namespace.c:446)
[   15.021643][  T301]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.021778][  T301]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.021907][  T301]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.022041][  T301]  copy_net_ns (net/core/net_namespace.c:579)
[   15.022171][  T301]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.022304][  T301]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.022434][  T301]  ksys_unshare (kernel/fork.c:3243)
[   15.022566][  T301]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.022724][  T301]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.022853][  T301]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.022983][  T301]  ? __ia32_sys_open (fs/open.c:1374)
[   15.023116][  T301]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.023244][  T301]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.023372][  T301]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.023508][  T301]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.023638][  T301]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.023774][  T301]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.023935][  T301] RIP: 0033:0x7f4a139cabcb
[   15.024070][  T301] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.024536][  T301] RSP: 002b:00007ffcbc7a8828 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.024737][  T301] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4a139cabcb
[   15.024929][  T301] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.025124][  T301] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.025318][  T301] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcbc7aaa50
[   15.025516][  T301] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcbc7ac87e
| [   15.029718][  T301] ------------[ cut here ]------------
| [   15.029850][  T301] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/301
| [   15.030073][  T301] Modules linked in: ipvtap ipvlan
| [   15.030473][  T301] Tainted: [W]=WARN
[   15.030570][  T301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.030739][  T301] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.030905][  T301] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.031364][  T301] RSP: 0018:ffa0000000af7918 EFLAGS: 00010286
[   15.031530][  T301] RAX: 00000000ffffffa6 RBX: ff11000009a7c900 RCX: 1ff400000015eee9
[   15.031728][  T301] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a7c9bc
[   15.031921][  T301] RBP: ff1100000f80c000 R08: 1fe220000134f939 R09: ff1100000f99d180
[   15.032114][  T301] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.032307][  T301] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f80c000
[   15.032509][  T301] FS:  00007f4a13708840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   15.032741][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.032904][  T301] CR2: 00007f4a139127d0 CR3: 0000000012127004 CR4: 0000000000771ef0
[   15.033099][  T301] PKRU: 55555554
[   15.033195][  T301] Call Trace:
[   15.033291][  T301]  <TASK>
[   15.033359][  T301]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.033493][  T301]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.033623][  T301]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.033729][  T301]  register_netdevice (net/core/dev.c:11488)
[   15.033860][  T301]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.034021][  T301]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.034152][  T301]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   15.034284][  T301]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   15.034412][  T301]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   15.034545][  T301]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   15.034681][  T301]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   15.034812][  T301]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   15.034942][  T301]  ops_init (net/core/net_namespace.c:137)
[   15.035041][  T301]  setup_net (net/core/net_namespace.c:446)
[   15.035138][  T301]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.035267][  T301]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.035396][  T301]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.035531][  T301]  copy_net_ns (net/core/net_namespace.c:579)
[   15.035673][  T301]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.035803][  T301]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.035933][  T301]  ksys_unshare (kernel/fork.c:3243)
[   15.036062][  T301]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.036189][  T301]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.036317][  T301]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.036446][  T301]  ? __ia32_sys_open (fs/open.c:1374)
[   15.036587][  T301]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.036719][  T301]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.036847][  T301]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.036975][  T301]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.037103][  T301]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.037232][  T301]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.037395][  T301] RIP: 0033:0x7f4a139cabcb
[   15.037533][  T301] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.037992][  T301] RSP: 002b:00007ffcbc7a8828 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.038192][  T301] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4a139cabcb
[   15.038382][  T301] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.038575][  T301] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.038771][  T301] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcbc7aaa50
[   15.038963][  T301] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcbc7ac87e
| [   15.042878][  T301] ------------[ cut here ]------------
| [   15.043010][  T301] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/301
| [   15.043238][  T301] Modules linked in: ipvtap ipvlan
| [   15.043634][  T301] Tainted: [W]=WARN
[   15.043737][  T301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.043900][  T301] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.044075][  T301] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.044541][  T301] RSP: 0018:ffa0000000af78f8 EFLAGS: 00010286
[   15.044709][  T301] RAX: 00000000ffffffa6 RBX: ff1100000df9de00 RCX: 1ff400000015eee5
[   15.044909][  T301] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df9debc
[   15.045103][  T301] RBP: ff11000013261000 R08: 1fe2200001bf3bd9 R09: ff1100000f99d180
[   15.045296][  T301] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.045493][  T301] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013261000
[   15.046209][  T301] FS:  00007f4a13708840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   15.046443][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.046608][  T301] CR2: 00007f4a139127d0 CR3: 0000000012127004 CR4: 0000000000771ef0
[   15.046860][  T301] PKRU: 55555554
[   15.046957][  T301] Call Trace:
[   15.047055][  T301]  <TASK>
[   15.047122][  T301]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.047258][  T301]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.047389][  T301]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.047494][  T301]  register_netdevice (net/core/dev.c:11488)
[   15.047625][  T301]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.047842][  T301]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.047976][  T301]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   15.048113][  T301]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   15.048242][  T301]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   15.048428][  T301]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   15.048564][  T301]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   15.048750][  T301]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   15.048881][  T301]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   15.049012][  T301]  vti_init_net (net/ipv4/ip_vti.c:517)
[   15.049151][  T301]  ops_init (net/core/net_namespace.c:137)
[   15.049250][  T301]  setup_net (net/core/net_namespace.c:446)
[   15.049348][  T301]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.049480][  T301]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.049611][  T301]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.049802][  T301]  copy_net_ns (net/core/net_namespace.c:579)
[   15.049934][  T301]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.050073][  T301]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.050203][  T301]  ksys_unshare (kernel/fork.c:3243)
[   15.050333][  T301]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.050462][  T301]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.050597][  T301]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.050786][  T301]  ? __ia32_sys_open (fs/open.c:1374)
[   15.050923][  T301]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.051053][  T301]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.051182][  T301]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.051311][  T301]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.051441][  T301]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.051576][  T301]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.051791][  T301] RIP: 0033:0x7f4a139cabcb
[   15.051936][  T301] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.052398][  T301] RSP: 002b:00007ffcbc7a8828 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.052597][  T301] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4a139cabcb
[   15.052851][  T301] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.053046][  T301] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.053239][  T301] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcbc7aaa50
[   15.053432][  T301] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcbc7ac87e
| [   15.058506][  T301] ------------[ cut here ]------------
| [   15.058703][  T301] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/301
| [   15.058973][  T301] Modules linked in: ipvtap ipvlan
| [   15.059465][  T301] Tainted: [W]=WARN
[   15.059621][  T301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.059841][  T301] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.060057][  T301] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.060569][  T301] RSP: 0018:ffa0000000af7a78 EFLAGS: 00010286
[   15.060793][  T301] RAX: 00000000ffffffa6 RBX: ff11000005704c80 RCX: 1ff400000015ef15
[   15.061031][  T301] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005704d3c
[   15.061269][  T301] RBP: ff11000012991000 R08: 1fe2200000ae09a9 R09: ff1100000f99d180
[   15.061517][  T301] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.061767][  T301] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012991000
[   15.062008][  T301] FS:  00007f4a13708840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   15.062279][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.062501][  T301] CR2: 00007f123d820000 CR3: 0000000012127001 CR4: 0000000000771ef0
[   15.062756][  T301] PKRU: 55555554
[   15.062900][  T301] Call Trace:
[   15.063045][  T301]  <TASK>
[   15.063159][  T301]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.063336][  T301]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.063516][  T301]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.063682][  T301]  register_netdevice (net/core/dev.c:11488)
[   15.063861][  T301]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.064068][  T301]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.064248][  T301]  register_netdev (net/core/dev.c:11552)
[   15.064425][  T301]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   15.064613][  T301]  ops_init (net/core/net_namespace.c:137)
[   15.064780][  T301]  setup_net (net/core/net_namespace.c:446)
[   15.064928][  T301]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.065105][  T301]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.065282][  T301]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.065460][  T301]  copy_net_ns (net/core/net_namespace.c:579)
[   15.065646][  T301]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.065841][  T301]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.066022][  T301]  ksys_unshare (kernel/fork.c:3243)
[   15.066201][  T301]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.066376][  T301]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.066563][  T301]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.066753][  T301]  ? __ia32_sys_open (fs/open.c:1374)
[   15.066931][  T301]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.067107][  T301]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.067287][  T301]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.067463][  T301]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.067663][  T301]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.067840][  T301]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.068047][  T301] RIP: 0033:0x7f4a139cabcb
[   15.068228][  T301] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.068752][  T301] RSP: 002b:00007ffcbc7a8828 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.068993][  T301] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4a139cabcb
[   15.069229][  T301] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.069476][  T301] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.069728][  T301] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcbc7aaa50
[   15.069969][  T301] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcbc7ac87e
| [   15.087042][  T301] ------------[ cut here ]------------
| [   15.087227][  T301] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/301
| [   15.087527][  T301] Modules linked in: ipvtap ipvlan
| [   15.088058][  T301] Tainted: [W]=WARN
[   15.088208][  T301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.088427][  T301] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.088664][  T301] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.089171][  T301] RSP: 0018:ffa0000000af7a68 EFLAGS: 00010286
[   15.089381][  T301] RAX: 00000000ffffffa6 RBX: ff11000005705a80 RCX: 1ff400000015ef13
[   15.089628][  T301] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005705b3c
[   15.089881][  T301] RBP: ff11000012bf4000 R08: 1fe2200000ae0b69 R09: ff1100000f99d180
[   15.090120][  T301] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.090358][  T301] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012bf4000
[   15.090608][  T301] FS:  00007f4a13708840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   15.090891][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.091103][  T301] CR2: 00007f123d820000 CR3: 0000000012127001 CR4: 0000000000771ef0
[   15.091345][  T301] PKRU: 55555554
[   15.091495][  T301] Call Trace:
[   15.091640][  T301]  <TASK>
[   15.091768][  T301]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.091948][  T301]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.092125][  T301]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.092271][  T301]  register_netdevice (net/core/dev.c:11488)
[   15.092452][  T301]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.092686][  T301]  register_netdev (net/core/dev.c:11552)
[   15.092863][  T301]  sit_init_net (net/ipv6/sit.c:1860)
[   15.093041][  T301]  ops_init (net/core/net_namespace.c:137)
[   15.093188][  T301]  setup_net (net/core/net_namespace.c:446)
[   15.093334][  T301]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.093514][  T301]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.093705][  T301]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.093886][  T301]  copy_net_ns (net/core/net_namespace.c:579)
[   15.094064][  T301]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.094243][  T301]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.094421][  T301]  ksys_unshare (kernel/fork.c:3243)
[   15.094605][  T301]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.094794][  T301]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.094973][  T301]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.095149][  T301]  ? __ia32_sys_open (fs/open.c:1374)
[   15.095327][  T301]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.095511][  T301]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.095699][  T301]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.095876][  T301]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.096053][  T301]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.096230][  T301]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.096438][  T301] RIP: 0033:0x7f4a139cabcb
[   15.096627][  T301] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.097138][  T301] RSP: 002b:00007ffcbc7a8828 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.097383][  T301] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4a139cabcb
[   15.097630][  T301] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.097882][  T301] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.098120][  T301] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcbc7aaa50
[   15.098357][  T301] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcbc7ac87e
| [   15.103398][  T301] ------------[ cut here ]------------
| [   15.103577][  T301] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/301
| [   15.103873][  T301] Modules linked in: ipvtap ipvlan
| [   15.104362][  T301] Tainted: [W]=WARN
[   15.104513][  T301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.104734][  T301] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.104951][  T301] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.105457][  T301] RSP: 0018:ffa0000000af7a78 EFLAGS: 00010286
[   15.105688][  T301] RAX: 00000000ffffffa6 RBX: ff11000012982900 RCX: 1ff400000015ef15
[   15.105928][  T301] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000129829bc
[   15.106168][  T301] RBP: ff1100000f921000 R08: 1fe2200002530539 R09: ff1100000f99d180
[   15.106404][  T301] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.106665][  T301] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f921000
[   15.106906][  T301] FS:  00007f4a13708840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   15.107182][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.107389][  T301] CR2: 00007f123d820000 CR3: 0000000012127001 CR4: 0000000000771ef0
[   15.107639][  T301] PKRU: 55555554
[   15.107794][  T301] Call Trace:
[   15.107937][  T301]  <TASK>
[   15.108051][  T301]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.108231][  T301]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.108408][  T301]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.108564][  T301]  register_netdevice (net/core/dev.c:11488)
[   15.108759][  T301]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.108965][  T301]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.109145][  T301]  register_netdev (net/core/dev.c:11552)
[   15.109322][  T301]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   15.109511][  T301]  ops_init (net/core/net_namespace.c:137)
[   15.109670][  T301]  setup_net (net/core/net_namespace.c:446)
[   15.109817][  T301]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.109990][  T301]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.110168][  T301]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.110348][  T301]  copy_net_ns (net/core/net_namespace.c:579)
[   15.110534][  T301]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.110731][  T301]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.110910][  T301]  ksys_unshare (kernel/fork.c:3243)
[   15.111088][  T301]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.111264][  T301]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.111440][  T301]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.111625][  T301]  ? __ia32_sys_open (fs/open.c:1374)
[   15.111815][  T301]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.111991][  T301]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.112169][  T301]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.112345][  T301]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.112531][  T301]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.112723][  T301]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.112930][  T301] RIP: 0033:0x7f4a139cabcb
[   15.113112][  T301] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.113625][  T301] RSP: 002b:00007ffcbc7a8828 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.113878][  T301] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4a139cabcb
[   15.114117][  T301] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.114360][  T301] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.114607][  T301] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcbc7aaa50
[   15.114858][  T301] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcbc7ac87e
| [   15.139840][  T302] ------------[ cut here ]------------
| [   15.139984][  T302] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/302
| [   15.140208][  T302] Modules linked in: ipvtap ipvlan
| [   15.140607][  T302] Tainted: [W]=WARN
[   15.140711][  T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.140874][  T302] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.141083][  T302] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.141551][  T302] RSP: 0018:ffa0000000b37020 EFLAGS: 00010286
[   15.141725][  T302] RAX: 00000000ffffffa6 RBX: ff110000104d4580 RCX: 1ff4000000166dca
[   15.141920][  T302] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104d463c
[   15.142111][  T302] RBP: ff1100000f8b4000 R08: 1fe220000209a8c9 R09: ff1100000f992e58
[   15.142304][  T302] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   15.142498][  T302] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   15.142698][  T302] FS:  00007f239651a840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   15.142924][  T302] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.143085][  T302] CR2: 000000002836c988 CR3: 000000000aa56001 CR4: 0000000000771ef0
[   15.143277][  T302] PKRU: 55555554
[   15.143373][  T302] Call Trace:
[   15.143473][  T302]  <TASK>
[   15.143542][  T302]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.143678][  T302]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.143779][  T302]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   15.143911][  T302]  __dev_notify_flags (net/core/dev.c:9787)
[   15.144041][  T302]  ? netif_change_name (net/core/dev.c:1495)
[   15.144170][  T302]  ? __dev_change_flags (net/core/dev.c:9752)
[   15.144300][  T302]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   15.144429][  T302]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.144564][  T302]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   15.144776][  T302]  netif_change_flags (net/core/dev.c:9820)
[   15.144906][  T302]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   15.145034][  T302]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   15.145166][  T302]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   15.145296][  T302]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   15.145459][  T302]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.145592][  T302]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.145785][  T302]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.145913][  T302]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.146097][  T302]  ? __kernel_text_address (kernel/extable.c:79)
[   15.146226][  T302]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.146357][  T302]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.146493][  T302]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.146622][  T302]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.146837][  T302]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.146965][  T302]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.147092][  T302]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.147220][  T302]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   15.147348][  T302]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   15.147482][  T302]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   15.147610][  T302]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.147813][  T302]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   15.147946][  T302]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   15.148079][  T302]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.148208][  T302]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.148335][  T302]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.148464][  T302]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.148599][  T302]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.148792][  T302]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.148924][  T302]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.149051][  T302]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.149179][  T302]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.149309][  T302]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.149439][  T302]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.149576][  T302]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.149738][  T302]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.149867][  T302]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.149996][  T302]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.150127][  T302]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.150254][  T302]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.150384][  T302]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.150518][  T302]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.150647][  T302]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.150785][  T302]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   15.150913][  T302]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   15.151043][  T302]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.151172][  T302]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.151301][  T302]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.151431][  T302]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.151567][  T302]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.151701][  T302]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.151833][  T302]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.151963][  T302]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.152093][  T302]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.152252][  T302]  ? move_addr_to_kernel (net/socket.c:258)
[   15.152381][  T302]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.152514][  T302]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.152647][  T302]  ___sys_sendmsg (net/socket.c:2752)
[   15.152781][  T302]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   15.152940][  T302]  ? copy_msghdr_from_user (net/socket.c:2603)
[   15.153082][  T302]  __sys_sendmsg (net/socket.c:2784)
[   15.153211][  T302]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   15.153339][  T302]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   15.153506][  T302]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   15.153638][  T302]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.153772][  T302]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.153902][  T302]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.154030][  T302]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.154160][  T302]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.154320][  T302] RIP: 0033:0x7f239675408e
[   15.154455][  T302] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   15.154927][  T302] RSP: 002b:00007fff24eb9d70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.155123][  T302] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f239675408e
[   15.155315][  T302] RDX: 0000000000000000 RSI: 00007fff24eb9e20 RDI: 0000000000000005
[   15.155512][  T302] RBP: 00007fff24eb9d80 R08: 0000000000000000 R09: 0000000000000000
[   15.155708][  T302] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac6
[   15.155900][  T302] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff24eba4f0
| [   15.280272][  T305] ------------[ cut here ]------------
| [   15.280449][  T305] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/305
| [   15.280721][  T305] Modules linked in: ipvtap ipvlan
| [   15.281162][  T305] Tainted: [W]=WARN
[   15.281273][  T305] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.281456][  T305] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.281646][  T305] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.282147][  T305] RSP: 0018:ffa0000000b570b0 EFLAGS: 00010286
[   15.282321][  T305] RAX: 00000000ffffffa6 RBX: ff110000094c3700 RCX: 1ff400000016addc
[   15.282572][  T305] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000094c37bc
[   15.282784][  T305] RBP: ff11000007edc000 R08: 1fe22000012986f9 R09: ff11000009c42e80
[   15.282996][  T305] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   15.283206][  T305] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   15.283418][  T305] FS:  00007f3d2b880840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   15.283676][  T305] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.283853][  T305] CR2: 0000000000445730 CR3: 000000000f1e4005 CR4: 0000000000771ef0
[   15.284062][  T305] PKRU: 55555554
[   15.284166][  T305] Call Trace:
[   15.284269][  T305]  <TASK>
[   15.284341][  T305]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.284485][  T305]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   15.284626][  T305]  notifier_call_chain (kernel/notifier.c:85)
[   15.284770][  T305]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   15.284909][  T305]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.285050][  T305]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   15.285189][  T305]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   15.285297][  T305]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   15.285478][  T305]  ? ida_destroy (lib/idr.c:623)
[   15.285619][  T305]  netdev_upper_dev_link (net/core/dev.c:8972)
[   15.285764][  T305]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   15.285908][  T305] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   15.286051][  T305]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   15.286195][  T305]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   15.286335][  T305] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   15.286482][  T305]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   15.286625][  T305]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   15.286767][  T305]  ? __dev_get_by_name (net/core/dev.c:883)
[   15.286906][  T305]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   15.287061][  T305]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   15.287206][  T305]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.287347][  T305]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.287490][  T305]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.287630][  T305]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.287775][  T305]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.287913][  T305]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.288056][  T305]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.288197][  T305]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.288339][  T305]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.288484][  T305]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.288623][  T305]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.288766][  T305]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.288906][  T305]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.289045][  T305]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.289186][  T305]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.289324][  T305]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.289473][  T305]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.289618][  T305]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   15.289762][  T305]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   15.289903][  T305]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.290045][  T305]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.290187][  T305]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.290328][  T305]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.290472][  T305]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.290614][  T305]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.290761][  T305]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.290900][  T305]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.291039][  T305]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.291214][  T305]  ? move_addr_to_kernel (net/socket.c:258)
[   15.291358][  T305]  ___sys_sendmsg (net/socket.c:2752)
[   15.291502][  T305]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.291642][  T305]  ? copy_msghdr_from_user (net/socket.c:2603)
[   15.291796][  T305]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   15.291938][  T305]  __sys_sendmsg (net/socket.c:2784)
[   15.292077][  T305]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   15.292224][  T305]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.292365][  T305]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.292510][  T305]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.292650][  T305]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.292796][  T305]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.292936][  T305]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.293108][  T305] RIP: 0033:0x7f3d2baba08e
[   15.293255][  T305] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   15.293768][  T305] RSP: 002b:00007ffd52847ca0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.293979][  T305] RAX: ffffffffffffffda RBX: 00007ffd52848458 RCX: 00007f3d2baba08e
[   15.294189][  T305] RDX: 0000000000000000 RSI: 00007ffd52847d50 RDI: 0000000000000005
[   15.294402][  T305] RBP: 00007ffd52847cb0 R08: 0000000000000000 R09: 0000000000000000
[   15.294615][  T305] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac6
[   15.294829][  T305] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd52848410
| [   15.296462][  T305] ------------[ cut here ]------------
| [   15.296597][  T305] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/305
| [   15.296836][  T305] Modules linked in: ipvtap ipvlan
| [   15.297241][  T305] Tainted: [W]=WARN
[   15.297342][  T305] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.297514][  T305] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.297693][  T305] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.298169][  T305] RSP: 0018:ffa0000000b571b0 EFLAGS: 00010286
[   15.298336][  T305] RAX: 00000000ffffffa6 RBX: ff110000094c3380 RCX: 1ff400000016adfc
[   15.298562][  T305] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000094c343c
[   15.298777][  T305] RBP: ff11000001eea000 R08: 1fe2200001298689 R09: ff11000009c42e80
[   15.298982][  T305] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.299181][  T305] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   15.299381][  T305] FS:  00007f3d2b880840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   15.299620][  T305] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.299801][  T305] CR2: 0000000000445730 CR3: 000000000f1e4005 CR4: 0000000000771ef0
[   15.300008][  T305] PKRU: 55555554
[   15.300111][  T305] Call Trace:
[   15.300213][  T305]  <TASK>
[   15.300285][  T305]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.300425][  T305]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.300535][  T305]  ? ida_destroy (lib/idr.c:623)
[   15.300677][  T305]  __dev_notify_flags (net/core/dev.c:9787)
[   15.300814][  T305]  ? netif_change_name (net/core/dev.c:1495)
[   15.300948][  T305]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.301081][  T305]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   15.301248][  T305]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   15.301413][  T305]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   15.301551][  T305]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   15.301695][  T305]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   15.301829][  T305]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   15.301965][  T305]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   15.302101][  T305]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   15.302234][  T305]  ? __dev_get_by_name (net/core/dev.c:883)
[   15.302367][  T305]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   15.302512][  T305]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   15.302657][  T305]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.302794][  T305]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.302928][  T305]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.303060][  T305]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.303193][  T305]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.303325][  T305]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.303463][  T305]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.303600][  T305]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.303740][  T305]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.303873][  T305]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.304007][  T305]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.304141][  T305]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.304275][  T305]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.304408][  T305]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.304548][  T305]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.304716][  T305]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.304852][  T305]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.304989][  T305]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   15.305122][  T305]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   15.305257][  T305]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.305392][  T305]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.305530][  T305]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.305668][  T305]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.305803][  T305]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.305949][  T305]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.306084][  T305]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.306217][  T305]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.306350][  T305]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.306520][  T305]  ? move_addr_to_kernel (net/socket.c:258)
[   15.306663][  T305]  ___sys_sendmsg (net/socket.c:2752)
[   15.306794][  T305]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.306928][  T305]  ? copy_msghdr_from_user (net/socket.c:2603)
[   15.307071][  T305]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   15.307206][  T305]  __sys_sendmsg (net/socket.c:2784)
[   15.307339][  T305]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   15.307478][  T305]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.307627][  T305]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.307768][  T305]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.307902][  T305]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.308034][  T305]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.308168][  T305]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.308334][  T305] RIP: 0033:0x7f3d2baba08e
[   15.308477][  T305] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   15.308975][  T305] RSP: 002b:00007ffd52847ca0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.309175][  T305] RAX: ffffffffffffffda RBX: 00007ffd52848458 RCX: 00007f3d2baba08e
[   15.309392][  T305] RDX: 0000000000000000 RSI: 00007ffd52847d50 RDI: 0000000000000005
[   15.309595][  T305] RBP: 00007ffd52847cb0 R08: 0000000000000000 R09: 0000000000000000
[   15.309805][  T305] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac6
[   15.310021][  T305] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd52848410
| [   15.367293][  T307] ------------[ cut here ]------------
| [   15.367474][  T307] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/307
| [   15.368287][  T307] Modules linked in: ipvtap ipvlan
| [   15.368764][  T307] Tainted: [W]=WARN
[   15.368863][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.369025][  T307] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.369194][  T307] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.369781][  T307] RSP: 0018:ffa0000000ad7a80 EFLAGS: 00010286
[   15.369950][  T307] RAX: 00000000ffffffa6 RBX: ff11000005f191c0 RCX: 1ff400000015af16
[   15.370178][  T307] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005f1927c
[   15.370375][  T307] RBP: ff1100000f574000 R08: 1fe2200000be3251 R09: ff1100000fdf0b80
[   15.370633][  T307] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.370878][  T307] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f574000
[   15.371080][  T307] FS:  00007f74700fd840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   15.371309][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.371482][  T307] CR2: 00007f74702fec20 CR3: 00000000121d9002 CR4: 0000000000771ef0
[   15.371707][  T307] PKRU: 55555554
[   15.371806][  T307] Call Trace:
[   15.371911][  T307]  <TASK>
[   15.371980][  T307]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.372114][  T307]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.372247][  T307]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.372346][  T307]  register_netdevice (net/core/dev.c:11488)
[   15.372484][  T307]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.372675][  T307]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.372806][  T307]  register_netdev (net/core/dev.c:11552)
[   15.372937][  T307]  loopback_net_init (drivers/net/loopback.c:218)
[   15.373069][  T307]  ops_init (net/core/net_namespace.c:137)
[   15.373175][  T307]  setup_net (net/core/net_namespace.c:446)
[   15.373276][  T307]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.373406][  T307]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.373544][  T307]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.373705][  T307]  copy_net_ns (net/core/net_namespace.c:579)
[   15.373836][  T307]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.373970][  T307]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.374100][  T307]  ksys_unshare (kernel/fork.c:3243)
[   15.374230][  T307]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.374360][  T307]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.374494][  T307]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.374627][  T307]  ? __ia32_sys_open (fs/open.c:1374)
[   15.374774][  T307]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.374904][  T307]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.375033][  T307]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.375163][  T307]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.375291][  T307]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.375421][  T307]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.375589][  T307] RIP: 0033:0x7f74703bfbcb
[   15.375733][  T307] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.376198][  T307] RSP: 002b:00007fff180f1608 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.376393][  T307] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f74703bfbcb
[   15.376604][  T307] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.376806][  T307] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.377000][  T307] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff180f3830
[   15.377194][  T307] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff180f487e
| [   15.382200][  T307] ------------[ cut here ]------------
| [   15.382350][  T307] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/307
| [   15.382647][  T307] Modules linked in: ipvtap ipvlan
| [   15.383048][  T307] Tainted: [W]=WARN
[   15.383146][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.383307][  T307] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.383475][  T307] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.384001][  T307] RSP: 0018:ffa0000000ad7918 EFLAGS: 00010286
[   15.384163][  T307] RAX: 00000000ffffffa6 RBX: ff110000062191c0 RCX: 1ff400000015aee9
[   15.384355][  T307] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000621927c
[   15.384554][  T307] RBP: ff1100001344c000 R08: 1fe2200000c43251 R09: ff1100000fdf0b80
[   15.384818][  T307] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.385035][  T307] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001344c000
[   15.385228][  T307] FS:  00007f74700fd840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   15.385455][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.385622][  T307] CR2: 00007f74702fec20 CR3: 00000000121d9002 CR4: 0000000000771ef0
[   15.385897][  T307] PKRU: 55555554
[   15.385994][  T307] Call Trace:
[   15.386089][  T307]  <TASK>
[   15.386155][  T307]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.386284][  T307]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.386413][  T307]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.386515][  T307]  register_netdevice (net/core/dev.c:11488)
[   15.386713][  T307]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.386872][  T307]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.387003][  T307]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   15.387133][  T307]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   15.387262][  T307]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   15.387395][  T307]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   15.387529][  T307]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   15.387715][  T307]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   15.387846][  T307]  ops_init (net/core/net_namespace.c:137)
[   15.387943][  T307]  setup_net (net/core/net_namespace.c:446)
[   15.388041][  T307]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.388168][  T307]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.388296][  T307]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.388428][  T307]  copy_net_ns (net/core/net_namespace.c:579)
[   15.388565][  T307]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.388751][  T307]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.388892][  T307]  ksys_unshare (kernel/fork.c:3243)
[   15.389022][  T307]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.389151][  T307]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.389284][  T307]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.389414][  T307]  ? __ia32_sys_open (fs/open.c:1374)
[   15.389632][  T307]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.389814][  T307]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.389963][  T307]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.390090][  T307]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.390219][  T307]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.390349][  T307]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.390514][  T307] RIP: 0033:0x7f74703bfbcb
[   15.390648][  T307] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.391192][  T307] RSP: 002b:00007fff180f1608 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.391389][  T307] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f74703bfbcb
[   15.391590][  T307] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.391837][  T307] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.392031][  T307] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff180f3830
[   15.392224][  T307] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff180f487e
| [   15.404081][  T307] ------------[ cut here ]------------
| [   15.404247][  T307] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/307
| [   15.404484][  T307] Modules linked in: ipvtap ipvlan
| [   15.404913][  T307] Tainted: [W]=WARN
[   15.405013][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.405177][  T307] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.405349][  T307] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.405830][  T307] RSP: 0018:ffa0000000ad78f8 EFLAGS: 00010286
[   15.405995][  T307] RAX: 00000000ffffffa6 RBX: ff11000012aba040 RCX: 1ff400000015aee5
[   15.406191][  T307] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012aba0fc
[   15.406387][  T307] RBP: ff1100001349c000 R08: 1fe2200002557421 R09: ff1100000fdf0b80
[   15.406590][  T307] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.406791][  T307] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001349c000
[   15.406989][  T307] FS:  00007f74700fd840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   15.407217][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.407381][  T307] CR2: 00005559e9c93d5c CR3: 00000000121d9004 CR4: 0000000000771ef0
[   15.407579][  T307] PKRU: 55555554
[   15.407683][  T307] Call Trace:
[   15.407780][  T307]  <TASK>
[   15.407848][  T307]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.407979][  T307]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.408111][  T307]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.408211][  T307]  register_netdevice (net/core/dev.c:11488)
[   15.408343][  T307]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.408510][  T307]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.408642][  T307]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   15.408778][  T307]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   15.408909][  T307]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   15.409043][  T307]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   15.409175][  T307]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   15.409307][  T307]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   15.409439][  T307]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   15.409578][  T307]  vti_init_net (net/ipv4/ip_vti.c:517)
[   15.409715][  T307]  ops_init (net/core/net_namespace.c:137)
[   15.409816][  T307]  setup_net (net/core/net_namespace.c:446)
[   15.409915][  T307]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.410047][  T307]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.410178][  T307]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.410310][  T307]  copy_net_ns (net/core/net_namespace.c:579)
[   15.410440][  T307]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.410610][  T307]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.410747][  T307]  ksys_unshare (kernel/fork.c:3243)
[   15.410878][  T307]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.411009][  T307]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.411141][  T307]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.411273][  T307]  ? __ia32_sys_open (fs/open.c:1374)
[   15.411404][  T307]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.411540][  T307]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.411676][  T307]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.411807][  T307]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.411939][  T307]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.412069][  T307]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.412230][  T307] RIP: 0033:0x7f74703bfbcb
[   15.412366][  T307] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.412840][  T307] RSP: 002b:00007fff180f1608 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.413039][  T307] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f74703bfbcb
[   15.413233][  T307] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.413428][  T307] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.413627][  T307] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff180f3830
[   15.413828][  T307] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff180f487e
| [   15.417999][  T307] ------------[ cut here ]------------
| [   15.418130][  T307] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/307
| [   15.418352][  T307] Modules linked in: ipvtap ipvlan
| [   15.418761][  T307] Tainted: [W]=WARN
[   15.418861][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.419023][  T307] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.419191][  T307] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.419665][  T307] RSP: 0018:ffa0000000ad7a78 EFLAGS: 00010286
[   15.419831][  T307] RAX: 00000000ffffffa6 RBX: ff110000107a9540 RCX: 1ff400000015af15
[   15.420024][  T307] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000107a95fc
[   15.420217][  T307] RBP: ff1100000f649000 R08: 1fe22000020f52c1 R09: ff1100000fdf0b80
[   15.420411][  T307] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.420614][  T307] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f649000
[   15.421320][  T307] FS:  00007f74700fd840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   15.421568][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.421785][  T307] CR2: 00005559e9c93d5c CR3: 00000000121d9004 CR4: 0000000000771ef0
[   15.421981][  T307] PKRU: 55555554
[   15.422078][  T307] Call Trace:
[   15.422174][  T307]  <TASK>
[   15.422241][  T307]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.422371][  T307]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.422506][  T307]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.422605][  T307]  register_netdevice (net/core/dev.c:11488)
[   15.422790][  T307]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.422953][  T307]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.423085][  T307]  register_netdev (net/core/dev.c:11552)
[   15.423215][  T307]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   15.423345][  T307]  ops_init (net/core/net_namespace.c:137)
[   15.423505][  T307]  setup_net (net/core/net_namespace.c:446)
[   15.423607][  T307]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.423792][  T307]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.423923][  T307]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.424056][  T307]  copy_net_ns (net/core/net_namespace.c:579)
[   15.424187][  T307]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.424319][  T307]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.424463][  T307]  ksys_unshare (kernel/fork.c:3243)
[   15.424599][  T307]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.424791][  T307]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.424922][  T307]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.425053][  T307]  ? __ia32_sys_open (fs/open.c:1374)
[   15.425184][  T307]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.425314][  T307]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.425443][  T307]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.425629][  T307]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.425812][  T307]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.425942][  T307]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.426102][  T307] RIP: 0033:0x7f74703bfbcb
[   15.426235][  T307] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.426755][  T307] RSP: 002b:00007fff180f1608 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.426949][  T307] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f74703bfbcb
[   15.427143][  T307] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.427336][  T307] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.427534][  T307] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff180f3830
[   15.427779][  T307] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff180f487e
| [   15.432421][  T307] ------------[ cut here ]------------
| [   15.432562][  T307] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/307
| [   15.433272][  T307] Modules linked in: ipvtap ipvlan
| [   15.433725][  T307] Tainted: [W]=WARN
[   15.433822][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.433982][  T307] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.434152][  T307] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.434612][  T307] RSP: 0018:ffa0000000ad7a68 EFLAGS: 00010286
[   15.434829][  T307] RAX: 00000000ffffffa6 RBX: ff110000133aba80 RCX: 1ff400000015af13
[   15.435076][  T307] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000133abb3c
[   15.435283][  T307] RBP: ff110000133e1000 R08: 1fe2200002675769 R09: ff1100000fdf0b80
[   15.435479][  T307] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.435723][  T307] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000133e1000
[   15.435917][  T307] FS:  00007f74700fd840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   15.436142][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.436303][  T307] CR2: 00005559e9c93d5c CR3: 00000000121d9004 CR4: 0000000000771ef0
[   15.436503][  T307] PKRU: 55555554
[   15.436598][  T307] Call Trace:
[   15.436747][  T307]  <TASK>
[   15.436816][  T307]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.436947][  T307]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.437076][  T307]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.437174][  T307]  register_netdevice (net/core/dev.c:11488)
[   15.437304][  T307]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.437473][  T307]  register_netdev (net/core/dev.c:11552)
[   15.437602][  T307]  sit_init_net (net/ipv6/sit.c:1860)
[   15.437789][  T307]  ops_init (net/core/net_namespace.c:137)
[   15.437888][  T307]  setup_net (net/core/net_namespace.c:446)
[   15.437987][  T307]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.438115][  T307]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.438244][  T307]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.438374][  T307]  copy_net_ns (net/core/net_namespace.c:579)
[   15.438510][  T307]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.438643][  T307]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.438827][  T307]  ksys_unshare (kernel/fork.c:3243)
[   15.438957][  T307]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.439086][  T307]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.439215][  T307]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.439344][  T307]  ? __ia32_sys_open (fs/open.c:1374)
[   15.439479][  T307]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.439609][  T307]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.439792][  T307]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.439921][  T307]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.440050][  T307]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.440179][  T307]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.440338][  T307] RIP: 0033:0x7f74703bfbcb
[   15.440478][  T307] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.440997][  T307] RSP: 002b:00007fff180f1608 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.441192][  T307] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f74703bfbcb
[   15.441383][  T307] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.441581][  T307] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.441830][  T307] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff180f3830
[   15.442022][  T307] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff180f487e
| [   15.446481][  T307] ------------[ cut here ]------------
| [   15.446686][  T307] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/307
| [   15.446966][  T307] Modules linked in: ipvtap ipvlan
| [   15.447453][  T307] Tainted: [W]=WARN
[   15.447609][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.447832][  T307] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.448048][  T307] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.448562][  T307] RSP: 0018:ffa0000000ad7a78 EFLAGS: 00010286
[   15.448787][  T307] RAX: 00000000ffffffa6 RBX: ff11000005705e00 RCX: 1ff400000015af15
[   15.449026][  T307] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005705ebc
[   15.449266][  T307] RBP: ff110000134ec000 R08: 1fe2200000ae0bd9 R09: ff1100000fdf0b80
[   15.449514][  T307] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.449766][  T307] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000134ec000
[   15.450008][  T307] FS:  00007f74700fd840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   15.450280][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.450496][  T307] CR2: 00007f5b9c3bf000 CR3: 00000000121d9001 CR4: 0000000000771ef0
[   15.450757][  T307] PKRU: 55555554
[   15.450901][  T307] Call Trace:
[   15.451045][  T307]  <TASK>
[   15.451160][  T307]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.451340][  T307]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.451527][  T307]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.451688][  T307]  register_netdevice (net/core/dev.c:11488)
[   15.451871][  T307]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.452082][  T307]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.452265][  T307]  register_netdev (net/core/dev.c:11552)
[   15.452443][  T307]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   15.452633][  T307]  ops_init (net/core/net_namespace.c:137)
[   15.452802][  T307]  setup_net (net/core/net_namespace.c:446)
[   15.452948][  T307]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.453125][  T307]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.453309][  T307]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.453497][  T307]  copy_net_ns (net/core/net_namespace.c:579)
[   15.453695][  T307]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.453877][  T307]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.454057][  T307]  ksys_unshare (kernel/fork.c:3243)
[   15.454235][  T307]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.454411][  T307]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.454604][  T307]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.454797][  T307]  ? __ia32_sys_open (fs/open.c:1374)
[   15.454978][  T307]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.455156][  T307]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.455334][  T307]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.455517][  T307]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.455710][  T307]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.455891][  T307]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.456104][  T307] RIP: 0033:0x7f74703bfbcb
[   15.456287][  T307] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.456816][  T307] RSP: 002b:00007fff180f1608 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.457061][  T307] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f74703bfbcb
[   15.457306][  T307] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.457557][  T307] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.457812][  T307] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff180f3830
[   15.458056][  T307] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff180f487e
| [   15.496763][  T308] ------------[ cut here ]------------
| [   15.496969][  T308] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/308
| [   15.497250][  T308] Modules linked in: ipvtap ipvlan
| [   15.497762][  T308] Tainted: [W]=WARN
[   15.497910][  T308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.498125][  T308] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.498348][  T308] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.499283][  T308] RSP: 0018:ffa0000000b67020 EFLAGS: 00010286
[   15.499498][  T308] RAX: 00000000ffffffa6 RBX: ff11000012ab5380 RCX: 1ff400000016cdca
[   15.499758][  T308] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012ab543c
[   15.499997][  T308] RBP: ff1100000f574000 R08: 1fe2200002556a89 R09: ff1100000e79d158
[   15.500237][  T308] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   15.500482][  T308] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   15.500737][  T308] FS:  00007f03c7403840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   15.501010][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.501220][  T308] CR2: 000000001000f988 CR3: 0000000004bbf003 CR4: 0000000000771ef0
[   15.501462][  T308] PKRU: 55555554
[   15.501614][  T308] Call Trace:
[   15.501770][  T308]  <TASK>
[   15.501883][  T308]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.502062][  T308]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.502208][  T308]  __dev_notify_flags (net/core/dev.c:9787)
[   15.502384][  T308]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[   15.502573][  T308]  ? netif_change_name (net/core/dev.c:1495)
[   15.502769][  T308]  ? __dev_change_flags (net/core/dev.c:9752)
[   15.502950][  T308]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   15.503125][  T308]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.503305][  T308]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   15.503490][  T308]  netif_change_flags (net/core/dev.c:9820)
[   15.503683][  T308]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   15.503863][  T308]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   15.504045][  T308]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   15.504224][  T308]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   15.504433][  T308]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.504615][  T308]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.504803][  T308]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.504979][  T308]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.505156][  T308]  ? __kernel_text_address (kernel/extable.c:79)
[   15.505338][  T308]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.505520][  T308]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.505706][  T308]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.505884][  T308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.506061][  T308]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.506237][  T308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.506413][  T308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.506599][  T308]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   15.506791][  T308]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   15.506969][  T308]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   15.507146][  T308]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.507323][  T308]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   15.507512][  T308]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   15.507705][  T308]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.507885][  T308]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.508065][  T308]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.508243][  T308]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.508419][  T308]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.508604][  T308]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.508797][  T308]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.508976][  T308]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.509154][  T308]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.509333][  T308]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.509521][  T308]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.509713][  T308]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.509891][  T308]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.510068][  T308]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.510244][  T308]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.510424][  T308]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.510608][  T308]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.510800][  T308]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.510980][  T308]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.511159][  T308]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.511339][  T308]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   15.511524][  T308]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   15.511719][  T308]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.511898][  T308]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.512076][  T308]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.512258][  T308]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.512436][  T308]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.512620][  T308]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.512812][  T308]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.512990][  T308]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.513166][  T308]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.513373][  T308]  ? move_addr_to_kernel (net/socket.c:258)
[   15.513564][  T308]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.513756][  T308]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.513937][  T308]  ___sys_sendmsg (net/socket.c:2752)
[   15.514114][  T308]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   15.514325][  T308]  ? copy_msghdr_from_user (net/socket.c:2603)
[   15.514525][  T308]  __sys_sendmsg (net/socket.c:2784)
[   15.514720][  T308]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   15.514897][  T308]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   15.515114][  T308]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   15.515292][  T308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.515479][  T308]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.515670][  T308]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.515847][  T308]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.516026][  T308]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.516233][  T308] RIP: 0033:0x7f03c763d08e
[   15.516419][  T308] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   15.516946][  T308] RSP: 002b:00007fff045099e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.517188][  T308] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f03c763d08e
[   15.517430][  T308] RDX: 0000000000000000 RSI: 00007fff04509a90 RDI: 0000000000000005
[   15.517691][  T308] RBP: 00007fff045099f0 R08: 0000000000000000 R09: 0000000000000000
[   15.517930][  T308] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac6
[   15.518168][  T308] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff0450a160
| [   15.642536][  T311] ------------[ cut here ]------------
| [   15.642714][  T311] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/311
| [   15.642956][  T311] Modules linked in: ipvtap ipvlan
| [   15.643381][  T311] Tainted: [W]=WARN
[   15.643492][  T311] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.643670][  T311] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.643854][  T311] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.644358][  T311] RSP: 0018:ffa0000000b970b0 EFLAGS: 00010286
[   15.644536][  T311] RAX: 00000000ffffffa6 RBX: ff11000009a7de00 RCX: 1ff4000000172ddc
[   15.644747][  T311] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a7debc
[   15.644950][  T311] RBP: ff11000007edc000 R08: 1fe220000134fbd9 R09: ff1100000f5d0b80
[   15.645155][  T311] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   15.645362][  T311] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   15.645573][  T311] FS:  00007f5b3d365840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   15.645816][  T311] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.645988][  T311] CR2: 0000000000445730 CR3: 00000000120c3001 CR4: 0000000000771ef0
[   15.646194][  T311] PKRU: 55555554
[   15.646297][  T311] Call Trace:
[   15.646400][  T311]  <TASK>
[   15.646473][  T311]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.646613][  T311]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   15.646757][  T311]  notifier_call_chain (kernel/notifier.c:85)
[   15.646897][  T311]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   15.647033][  T311]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.647171][  T311]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   15.647306][  T311]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   15.647410][  T311]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   15.647588][  T311]  ? ida_destroy (lib/idr.c:623)
[   15.647731][  T311]  netdev_upper_dev_link (net/core/dev.c:8972)
[   15.647867][  T311]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   15.648006][  T311] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   15.648146][  T311]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   15.648282][  T311]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   15.648420][  T311] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   15.648563][  T311]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   15.648810][  T311]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   15.648947][  T311]  ? __dev_get_by_name (net/core/dev.c:883)
[   15.649083][  T311]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   15.649225][  T311]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   15.649367][  T311]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.649511][  T311]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.649647][  T311]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.649850][  T311]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.649986][  T311]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.650122][  T311]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.650262][  T311]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.650400][  T311]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.650550][  T311]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.650757][  T311]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.650892][  T311]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.651028][  T311]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.651166][  T311]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.651301][  T311]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.651438][  T311]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.651579][  T311]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.651808][  T311]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.651948][  T311]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   15.652082][  T311]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   15.652221][  T311]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.652360][  T311]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.652503][  T311]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.652641][  T311]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.652859][  T311]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.652996][  T311]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.653134][  T311]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.653271][  T311]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.653408][  T311]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.653581][  T311]  ? move_addr_to_kernel (net/socket.c:258)
[   15.653781][  T311]  ___sys_sendmsg (net/socket.c:2752)
[   15.653918][  T311]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.654055][  T311]  ? copy_msghdr_from_user (net/socket.c:2603)
[   15.654202][  T311]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   15.654341][  T311]  __sys_sendmsg (net/socket.c:2784)
[   15.654481][  T311]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   15.654622][  T311]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.654765][  T311]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.654903][  T311]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.655040][  T311]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.655176][  T311]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.655313][  T311]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.655487][  T311] RIP: 0033:0x7f5b3d59f08e
[   15.655631][  T311] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   15.656124][  T311] RSP: 002b:00007ffd3d76abd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.656331][  T311] RAX: ffffffffffffffda RBX: 00007ffd3d76b388 RCX: 00007f5b3d59f08e
[   15.656542][  T311] RDX: 0000000000000000 RSI: 00007ffd3d76ac80 RDI: 0000000000000005
[   15.656754][  T311] RBP: 00007ffd3d76abe0 R08: 0000000000000000 R09: 0000000000000000
[   15.656959][  T311] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac6
[   15.657166][  T311] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd3d76b340
| [   15.658782][  T311] ------------[ cut here ]------------
| [   15.658910][  T311] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/311
| [   15.659134][  T311] Modules linked in: ipvtap ipvlan
| [   15.659540][  T311] Tainted: [W]=WARN
[   15.659638][  T311] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.659813][  T311] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.659986][  T311] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.660455][  T311] RSP: 0018:ffa0000000b971b0 EFLAGS: 00010286
[   15.660624][  T311] RAX: 00000000ffffffa6 RBX: ff1100000d4e9380 RCX: 1ff4000000172dfc
[   15.660880][  T311] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d4e943c
[   15.661075][  T311] RBP: ff1100001351a000 R08: 1fe2200001a9d289 R09: ff1100000f5d0b80
[   15.661272][  T311] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.661466][  T311] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   15.661722][  T311] FS:  00007f5b3d365840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   15.661950][  T311] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.662115][  T311] CR2: 0000000000445730 CR3: 00000000120c3001 CR4: 0000000000771ef0
[   15.662312][  T311] PKRU: 55555554
[   15.662410][  T311] Call Trace:
[   15.662513][  T311]  <TASK>
[   15.662581][  T311]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.662770][  T311]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.662869][  T311]  ? ida_destroy (lib/idr.c:623)
[   15.663009][  T311]  __dev_notify_flags (net/core/dev.c:9787)
[   15.663144][  T311]  ? netif_change_name (net/core/dev.c:1495)
[   15.663274][  T311]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.663405][  T311]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   15.663575][  T311]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   15.663743][  T311]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   15.663875][  T311]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   15.664010][  T311]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   15.664143][  T311]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   15.664275][  T311]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   15.664408][  T311]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   15.664544][  T311]  ? __dev_get_by_name (net/core/dev.c:883)
[   15.664681][  T311]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   15.664819][  T311]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   15.664954][  T311]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.665089][  T311]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.665219][  T311]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.665350][  T311]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.665485][  T311]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.665615][  T311]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.665758][  T311]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.665891][  T311]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.666023][  T311]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.666155][  T311]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.666286][  T311]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.666416][  T311]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.666554][  T311]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.666690][  T311]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.666822][  T311]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.666955][  T311]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.667087][  T311]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.667222][  T311]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   15.667354][  T311]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   15.667494][  T311]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.667626][  T311]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.667762][  T311]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.667895][  T311]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.668028][  T311]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.668162][  T311]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.668296][  T311]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.668428][  T311]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.668563][  T311]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.668730][  T311]  ? move_addr_to_kernel (net/socket.c:258)
[   15.668867][  T311]  ___sys_sendmsg (net/socket.c:2752)
[   15.668997][  T311]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.669130][  T311]  ? copy_msghdr_from_user (net/socket.c:2603)
[   15.669273][  T311]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   15.669406][  T311]  __sys_sendmsg (net/socket.c:2784)
[   15.669540][  T311]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   15.669681][  T311]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.669812][  T311]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.669943][  T311]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.670076][  T311]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.670208][  T311]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.670340][  T311]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.670507][  T311] RIP: 0033:0x7f5b3d59f08e
[   15.670644][  T311] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   15.671119][  T311] RSP: 002b:00007ffd3d76abd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.671317][  T311] RAX: ffffffffffffffda RBX: 00007ffd3d76b388 RCX: 00007f5b3d59f08e
[   15.671526][  T311] RDX: 0000000000000000 RSI: 00007ffd3d76ac80 RDI: 0000000000000005
[   15.671728][  T311] RBP: 00007ffd3d76abe0 R08: 0000000000000000 R09: 0000000000000000
[   15.671927][  T311] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac6
[   15.672123][  T311] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd3d76b340
| [   15.727420][  T313] ------------[ cut here ]------------
| [   15.727611][  T313] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/313
| [   15.727896][  T313] Modules linked in: ipvtap ipvlan
| [   15.728382][  T313] Tainted: [W]=WARN
[   15.728536][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.728768][  T313] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.728983][  T313] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.729491][  T313] RSP: 0018:ffa0000000b77a80 EFLAGS: 00010286
[   15.729715][  T313] RAX: 00000000ffffffa6 RBX: ff110000104cbc40 RCX: 1ff400000016ef16
[   15.729956][  T313] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104cbcfc
[   15.730204][  T313] RBP: ff11000008b59000 R08: 1fe22000020997a1 R09: ff1100000f5d5180
[   15.730443][  T313] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.730701][  T313] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b59000
[   15.730945][  T313] FS:  00007fcd9eb75840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   15.731218][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.731427][  T313] CR2: 00007fcd9ed81690 CR3: 000000001350f001 CR4: 0000000000771ef0
[   15.731688][  T313] PKRU: 55555554
[   15.731831][  T313] Call Trace:
[   15.731974][  T313]  <TASK>
[   15.732088][  T313]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.732265][  T313]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.732442][  T313]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.732601][  T313]  register_netdevice (net/core/dev.c:11488)
[   15.732793][  T313]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.733003][  T313]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.733181][  T313]  register_netdev (net/core/dev.c:11552)
[   15.733357][  T313]  loopback_net_init (drivers/net/loopback.c:218)
[   15.733544][  T313]  ops_init (net/core/net_namespace.c:137)
[   15.733706][  T313]  setup_net (net/core/net_namespace.c:446)
[   15.733854][  T313]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.734030][  T313]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.734210][  T313]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.734390][  T313]  copy_net_ns (net/core/net_namespace.c:579)
[   15.734578][  T313]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.734769][  T313]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.734946][  T313]  ksys_unshare (kernel/fork.c:3243)
[   15.735122][  T313]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.735297][  T313]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.735482][  T313]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.735674][  T313]  ? __ia32_sys_open (fs/open.c:1374)
[   15.735852][  T313]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.736027][  T313]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.736202][  T313]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.736375][  T313]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.736560][  T313]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.736750][  T313]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.736954][  T313] RIP: 0033:0x7fcd9ee37bcb
[   15.737134][  T313] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.737643][  T313] RSP: 002b:00007ffed5c3a008 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.737896][  T313] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcd9ee37bcb
[   15.738133][  T313] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.738371][  T313] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.738612][  T313] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffed5c3c230
[   15.738863][  T313] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed5c3d87e
| [   15.749859][  T313] ------------[ cut here ]------------
| [   15.750036][  T313] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/313
| [   15.750308][  T313] Modules linked in: ipvtap ipvlan
| [   15.751323][  T313] Tainted: [W]=WARN
[   15.751530][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.751808][  T313] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.752080][  T313] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.752642][  T313] RSP: 0018:ffa0000000b77918 EFLAGS: 00010286
[   15.752928][  T313] RAX: 00000000ffffffa6 RBX: ff11000012abb380 RCX: 1ff400000016eee9
[   15.753222][  T313] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012abb43c
[   15.753521][  T313] RBP: ff1100000f0e1000 R08: 1fe2200002557689 R09: ff1100000f5d5180
[   15.753823][  T313] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.754119][  T313] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f0e1000
[   15.754414][  T313] FS:  00007fcd9eb75840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   15.754763][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.755025][  T313] CR2: 00007fcd9ed81690 CR3: 000000001350f001 CR4: 0000000000771ef0
[   15.755318][  T313] PKRU: 55555554
[   15.755519][  T313] Call Trace:
[   15.755729][  T313]  <TASK>
[   15.755898][  T313]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.756131][  T313]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.756359][  T313]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.756566][  T313]  register_netdevice (net/core/dev.c:11488)
[   15.756811][  T313]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.757072][  T313]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.757302][  T313]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   15.757538][  T313]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   15.757785][  T313]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   15.758018][  T313]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   15.758246][  T313]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   15.758478][  T313]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   15.758669][  T313]  ops_init (net/core/net_namespace.c:137)
[   15.758816][  T313]  setup_net (net/core/net_namespace.c:446)
[   15.758963][  T313]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.759139][  T313]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.759343][  T313]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.759530][  T313]  copy_net_ns (net/core/net_namespace.c:579)
[   15.759724][  T313]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.759903][  T313]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.760080][  T313]  ksys_unshare (kernel/fork.c:3243)
[   15.760256][  T313]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.760433][  T313]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.760618][  T313]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.760806][  T313]  ? __ia32_sys_open (fs/open.c:1374)
[   15.760984][  T313]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.761159][  T313]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.761335][  T313]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.761517][  T313]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.761703][  T313]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.761883][  T313]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.762091][  T313] RIP: 0033:0x7fcd9ee37bcb
[   15.762273][  T313] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.762797][  T313] RSP: 002b:00007ffed5c3a008 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.763039][  T313] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcd9ee37bcb
[   15.763277][  T313] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.763525][  T313] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.763778][  T313] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffed5c3c230
[   15.764020][  T313] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed5c3d87e
| [   15.768657][  T313] ------------[ cut here ]------------
| [   15.768804][  T313] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/313
| [   15.769033][  T313] Modules linked in: ipvtap ipvlan
| [   15.769430][  T313] Tainted: [W]=WARN
[   15.769534][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.769701][  T313] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.769872][  T313] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.770334][  T313] RSP: 0018:ffa0000000b778f8 EFLAGS: 00010286
[   15.770503][  T313] RAX: 00000000ffffffa6 RBX: ff1100000becf380 RCX: 1ff400000016eee5
[   15.770707][  T313] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000becf43c
[   15.770900][  T313] RBP: ff11000012b74000 R08: 1fe22000017d9e89 R09: ff1100000f5d5180
[   15.771094][  T313] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.771288][  T313] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012b74000
[   15.771487][  T313] FS:  00007fcd9eb75840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   15.771723][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.771885][  T313] CR2: 00005559e9c8fae8 CR3: 000000001350f001 CR4: 0000000000771ef0
[   15.772079][  T313] PKRU: 55555554
[   15.772176][  T313] Call Trace:
[   15.772274][  T313]  <TASK>
[   15.772341][  T313]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.772479][  T313]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.772611][  T313]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.772717][  T313]  register_netdevice (net/core/dev.c:11488)
[   15.772850][  T313]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.773013][  T313]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.773144][  T313]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   15.773277][  T313]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   15.773407][  T313]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   15.773546][  T313]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   15.773684][  T313]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   15.773816][  T313]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   15.773947][  T313]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   15.774079][  T313]  vti_init_net (net/ipv4/ip_vti.c:517)
[   15.774209][  T313]  ops_init (net/core/net_namespace.c:137)
[   15.774312][  T313]  setup_net (net/core/net_namespace.c:446)
[   15.774411][  T313]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.774546][  T313]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.774683][  T313]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.774815][  T313]  copy_net_ns (net/core/net_namespace.c:579)
[   15.774947][  T313]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.775082][  T313]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.775214][  T313]  ksys_unshare (kernel/fork.c:3243)
[   15.775344][  T313]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.775480][  T313]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.775611][  T313]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.775747][  T313]  ? __ia32_sys_open (fs/open.c:1374)
[   15.775879][  T313]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.776009][  T313]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.776137][  T313]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.776267][  T313]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.776397][  T313]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.776531][  T313]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.776697][  T313] RIP: 0033:0x7fcd9ee37bcb
[   15.776833][  T313] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.777299][  T313] RSP: 002b:00007ffed5c3a008 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.777500][  T313] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcd9ee37bcb
[   15.777699][  T313] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.777894][  T313] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.778089][  T313] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffed5c3c230
[   15.778284][  T313] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed5c3d87e
| [   15.782373][  T313] ------------[ cut here ]------------
| [   15.782514][  T313] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/313
| [   15.782743][  T313] Modules linked in: ipvtap ipvlan
| [   15.783138][  T313] Tainted: [W]=WARN
[   15.783236][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.783397][  T313] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.783572][  T313] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.784037][  T313] RSP: 0018:ffa0000000b77a78 EFLAGS: 00010286
[   15.784201][  T313] RAX: 00000000ffffffa6 RBX: ff11000006219540 RCX: 1ff400000016ef15
[   15.784395][  T313] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000062195fc
[   15.784594][  T313] RBP: ff11000009154000 R08: 1fe2200000c432c1 R09: ff1100000f5d5180
[   15.784798][  T313] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.784992][  T313] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009154000
[   15.785187][  T313] FS:  00007fcd9eb75840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   15.785413][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.785581][  T313] CR2: 00005559e9c8fae8 CR3: 000000001350f001 CR4: 0000000000771ef0
[   15.785785][  T313] PKRU: 55555554
[   15.785881][  T313] Call Trace:
[   15.785978][  T313]  <TASK>
[   15.786045][  T313]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.786174][  T313]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.786304][  T313]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.786403][  T313]  register_netdevice (net/core/dev.c:11488)
[   15.786540][  T313]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.786707][  T313]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.786840][  T313]  register_netdev (net/core/dev.c:11552)
[   15.786969][  T313]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   15.787100][  T313]  ops_init (net/core/net_namespace.c:137)
[   15.787200][  T313]  setup_net (net/core/net_namespace.c:446)
[   15.787299][  T313]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.787429][  T313]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.787566][  T313]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.787701][  T313]  copy_net_ns (net/core/net_namespace.c:579)
[   15.787833][  T313]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.787966][  T313]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.788097][  T313]  ksys_unshare (kernel/fork.c:3243)
[   15.788226][  T313]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.788355][  T313]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.788493][  T313]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.788625][  T313]  ? __ia32_sys_open (fs/open.c:1374)
[   15.788761][  T313]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.788891][  T313]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.789020][  T313]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.789149][  T313]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.789280][  T313]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.789408][  T313]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.789577][  T313] RIP: 0033:0x7fcd9ee37bcb
[   15.789715][  T313] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.790187][  T313] RSP: 002b:00007ffed5c3a008 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.790385][  T313] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcd9ee37bcb
[   15.790581][  T313] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.790780][  T313] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.790973][  T313] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffed5c3c230
[   15.791168][  T313] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed5c3d87e
| [   15.795290][  T313] ------------[ cut here ]------------
| [   15.795426][  T313] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/313
| [   15.796154][  T313] Modules linked in: ipvtap ipvlan
| [   15.796548][  T313] Tainted: [W]=WARN
[   15.796646][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.796865][  T313] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.797035][  T313] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.797498][  T313] RSP: 0018:ffa0000000b77a68 EFLAGS: 00010286
[   15.797717][  T313] RAX: 00000000ffffffa6 RBX: ff1100000ce0a3c0 RCX: 1ff400000016ef13
[   15.797967][  T313] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce0a47c
[   15.798164][  T313] RBP: ff11000012ce1000 R08: 1fe22000019c1491 R09: ff1100000f5d5180
[   15.798357][  T313] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.798554][  T313] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012ce1000
[   15.798804][  T313] FS:  00007fcd9eb75840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   15.799032][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.799195][  T313] CR2: 00005559e9c8fae8 CR3: 000000001350f001 CR4: 0000000000771ef0
[   15.799392][  T313] PKRU: 55555554
[   15.799495][  T313] Call Trace:
[   15.799591][  T313]  <TASK>
[   15.799713][  T313]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.799845][  T313]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.799975][  T313]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.800074][  T313]  register_netdevice (net/core/dev.c:11488)
[   15.800206][  T313]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.800372][  T313]  register_netdev (net/core/dev.c:11552)
[   15.800504][  T313]  sit_init_net (net/ipv6/sit.c:1860)
[   15.800636][  T313]  ops_init (net/core/net_namespace.c:137)
[   15.800792][  T313]  setup_net (net/core/net_namespace.c:446)
[   15.800890][  T313]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.801019][  T313]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.801149][  T313]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.801282][  T313]  copy_net_ns (net/core/net_namespace.c:579)
[   15.801414][  T313]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.801550][  T313]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.801737][  T313]  ksys_unshare (kernel/fork.c:3243)
[   15.801866][  T313]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.801996][  T313]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.802127][  T313]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.802258][  T313]  ? __ia32_sys_open (fs/open.c:1374)
[   15.802389][  T313]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.802524][  T313]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.802708][  T313]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.802839][  T313]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.802968][  T313]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.803097][  T313]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.803259][  T313] RIP: 0033:0x7fcd9ee37bcb
[   15.803392][  T313] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.803917][  T313] RSP: 002b:00007ffed5c3a008 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.804112][  T313] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcd9ee37bcb
[   15.804304][  T313] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.804501][  T313] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.804754][  T313] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffed5c3c230
[   15.804948][  T313] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed5c3d87e
| [   15.809338][  T313] ------------[ cut here ]------------
| [   15.809485][  T313] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/313
| [   15.809726][  T313] Modules linked in: ipvtap ipvlan
| [   15.810126][  T313] Tainted: [W]=WARN
[   15.810224][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.810386][  T313] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.810563][  T313] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.811031][  T313] RSP: 0018:ffa0000000b77a78 EFLAGS: 00010286
[   15.811196][  T313] RAX: 00000000ffffffa6 RBX: ff110000104ca740 RCX: 1ff400000016ef15
[   15.811391][  T313] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104ca7fc
[   15.811592][  T313] RBP: ff110000135cc000 R08: 1fe2200002099501 R09: ff1100000f5d5180
[   15.811793][  T313] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.811992][  T313] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000135cc000
[   15.812190][  T313] FS:  00007fcd9eb75840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   15.812420][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.812594][  T313] CR2: 00005559e9c93d5c CR3: 000000001350f001 CR4: 0000000000771ef0
[   15.812797][  T313] PKRU: 55555554
[   15.812895][  T313] Call Trace:
[   15.812992][  T313]  <TASK>
[   15.813060][  T313]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.813193][  T313]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.813324][  T313]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.813424][  T313]  register_netdevice (net/core/dev.c:11488)
[   15.813563][  T313]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.813731][  T313]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.813863][  T313]  register_netdev (net/core/dev.c:11552)
[   15.813992][  T313]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   15.814125][  T313]  ops_init (net/core/net_namespace.c:137)
[   15.814225][  T313]  setup_net (net/core/net_namespace.c:446)
[   15.814324][  T313]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.814455][  T313]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.814593][  T313]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.814732][  T313]  copy_net_ns (net/core/net_namespace.c:579)
[   15.814865][  T313]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.814999][  T313]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.815132][  T313]  ksys_unshare (kernel/fork.c:3243)
[   15.815264][  T313]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.815395][  T313]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.815533][  T313]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.815668][  T313]  ? __ia32_sys_open (fs/open.c:1374)
[   15.815801][  T313]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.815930][  T313]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.816061][  T313]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.816191][  T313]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.816320][  T313]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.816451][  T313]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.816621][  T313] RIP: 0033:0x7fcd9ee37bcb
[   15.816764][  T313] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.817229][  T313] RSP: 002b:00007ffed5c3a008 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.817429][  T313] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcd9ee37bcb
[   15.817628][  T313] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.817825][  T313] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.818019][  T313] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffed5c3c230
[   15.818213][  T313] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed5c3d87e
| [   15.841997][  T314] ------------[ cut here ]------------
| [   15.842190][  T314] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/314
| [   15.842464][  T314] Modules linked in: ipvtap ipvlan
| [   15.842992][  T314] Tainted: [W]=WARN
[   15.843136][  T314] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.843340][  T314] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.843562][  T314] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.844808][  T314] RSP: 0018:ffa0000000ba7020 EFLAGS: 00010286
[   15.845089][  T314] RAX: 00000000ffffffa6 RBX: ff11000012abbc40 RCX: 1ff4000000174dca
[   15.845324][  T314] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012abbcfc
[   15.845570][  T314] RBP: ff11000008b59000 R08: 1fe22000025577a1 R09: ff1100000e7cae58
[   15.845825][  T314] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   15.846062][  T314] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   15.846311][  T314] FS:  00007f38d17f2840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   15.846590][  T314] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.846815][  T314] CR2: 00007f38d1ac21a0 CR3: 0000000004e6d004 CR4: 0000000000771ef0
[   15.847053][  T314] PKRU: 55555554
[   15.847195][  T314] Call Trace:
[   15.847338][  T314]  <TASK>
[   15.847452][  T314]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.847640][  T314]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.847798][  T314]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   15.847976][  T314]  __dev_notify_flags (net/core/dev.c:9787)
[   15.848159][  T314]  ? netif_change_name (net/core/dev.c:1495)
[   15.848335][  T314]  ? __dev_change_flags (net/core/dev.c:9752)
[   15.848517][  T314]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   15.848714][  T314]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.848893][  T314]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   15.849071][  T314]  netif_change_flags (net/core/dev.c:9820)
[   15.849268][  T314]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   15.849449][  T314]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   15.849637][  T314]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   15.849828][  T314]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   15.850036][  T314]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.850213][  T314]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.850408][  T314]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.850598][  T314]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.850800][  T314]  ? __kernel_text_address (kernel/extable.c:79)
[   15.850978][  T314]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.851157][  T314]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.851333][  T314]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.851519][  T314]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.851731][  T314]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.851908][  T314]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.852087][  T314]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.852264][  T314]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   15.852440][  T314]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   15.852624][  T314]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   15.852834][  T314]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.853012][  T314]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   15.853192][  T314]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   15.853371][  T314]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.853562][  T314]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.853752][  T314]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.853930][  T314]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.854132][  T314]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.854309][  T314]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.854498][  T314]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.854687][  T314]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.854867][  T314]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.855043][  T314]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.855239][  T314]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.855417][  T314]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.855602][  T314]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.855792][  T314]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.855969][  T314]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.856148][  T314]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.856326][  T314]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.856530][  T314]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.856724][  T314]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.856904][  T314]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.857083][  T314]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   15.857258][  T314]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   15.857438][  T314]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.857638][  T314]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.857829][  T314]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.858007][  T314]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.858185][  T314]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.858363][  T314]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.858549][  T314]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.858737][  T314]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.858931][  T314]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.859143][  T314]  ? move_addr_to_kernel (net/socket.c:258)
[   15.859322][  T314]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.859505][  T314]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.859697][  T314]  ___sys_sendmsg (net/socket.c:2752)
[   15.859874][  T314]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   15.860103][  T314]  ? copy_msghdr_from_user (net/socket.c:2603)
[   15.860293][  T314]  __sys_sendmsg (net/socket.c:2784)
[   15.860481][  T314]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   15.860669][  T314]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   15.860880][  T314]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   15.861058][  T314]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.861254][  T314]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.861431][  T314]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.861615][  T314]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.861806][  T314]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.862014][  T314] RIP: 0033:0x7f38d1a2c08e
[   15.862196][  T314] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   15.862737][  T314] RSP: 002b:00007ffdf3b10250 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.862985][  T314] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f38d1a2c08e
[   15.863223][  T314] RDX: 0000000000000000 RSI: 00007ffdf3b10300 RDI: 0000000000000005
[   15.863487][  T314] RBP: 00007ffdf3b10260 R08: 0000000000000000 R09: 0000000000000000
[   15.863738][  T314] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac7
[   15.863983][  T314] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdf3b109d0
| [   15.988735][  T317] ------------[ cut here ]------------
| [   15.988919][  T317] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/317
| [   15.989169][  T317] Modules linked in: ipvtap ipvlan
| [   15.989606][  T317] Tainted: [W]=WARN
[   15.989720][  T317] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.989896][  T317] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.990077][  T317] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.990592][  T317] RSP: 0018:ffa0000000b870b0 EFLAGS: 00010286
[   15.990856][  T317] RAX: 00000000ffffffa6 RBX: ff1100000bef31c0 RCX: 1ff4000000170ddc
[   15.991066][  T317] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bef327c
[   15.991275][  T317] RBP: ff11000007edc000 R08: 1fe22000017de651 R09: ff1100000e6d0b80
[   15.991486][  T317] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   15.991769][  T317] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   15.991979][  T317] FS:  00007f8d68bc9840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   15.992229][  T317] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.992407][  T317] CR2: 0000000000445730 CR3: 0000000004f3f003 CR4: 0000000000771ef0
[   15.992618][  T317] PKRU: 55555554
[   15.992818][  T317] Call Trace:
[   15.992923][  T317]  <TASK>
[   15.992994][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.993134][  T317]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   15.993274][  T317]  notifier_call_chain (kernel/notifier.c:85)
[   15.993415][  T317]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   15.993560][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.993742][  T317]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   15.993881][  T317]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   15.993988][  T317]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   15.994163][  T317]  ? ida_destroy (lib/idr.c:623)
[   15.994306][  T317]  netdev_upper_dev_link (net/core/dev.c:8972)
[   15.994445][  T317]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   15.994591][  T317] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   15.994736][  T317]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   15.994874][  T317]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   15.995015][  T317] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   15.995155][  T317]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   15.995298][  T317]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   15.995437][  T317]  ? __dev_get_by_name (net/core/dev.c:883)
[   15.995581][  T317]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   15.995732][  T317]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   15.995874][  T317]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.996014][  T317]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.996151][  T317]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.996289][  T317]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.996427][  T317]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.996571][  T317]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.996718][  T317]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.996859][  T317]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.996998][  T317]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.997136][  T317]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.997273][  T317]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.997413][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.997557][  T317]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.997699][  T317]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.997838][  T317]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.997976][  T317]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.998116][  T317]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.998258][  T317]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   15.998395][  T317]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   15.998543][  T317]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.998689][  T317]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.998826][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.998965][  T317]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.999104][  T317]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.999243][  T317]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.999384][  T317]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.999534][  T317]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.999677][  T317]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.999848][  T317]  ? move_addr_to_kernel (net/socket.c:258)
[   15.999991][  T317]  ___sys_sendmsg (net/socket.c:2752)
[   16.000127][  T317]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.000265][  T317]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.000413][  T317]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   16.000566][  T317]  __sys_sendmsg (net/socket.c:2784)
[   16.000711][  T317]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.000851][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.000989][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.001127][  T317]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.001266][  T317]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.001407][  T317]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.001555][  T317]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.001736][  T317] RIP: 0033:0x7f8d68e0308e
[   16.001885][  T317] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.002376][  T317] RSP: 002b:00007ffeedfa5bc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.002592][  T317] RAX: ffffffffffffffda RBX: 00007ffeedfa6378 RCX: 00007f8d68e0308e
[   16.002801][  T317] RDX: 0000000000000000 RSI: 00007ffeedfa5c70 RDI: 0000000000000005
[   16.003007][  T317] RBP: 00007ffeedfa5bd0 R08: 0000000000000000 R09: 0000000000000000
[   16.003211][  T317] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac7
[   16.003419][  T317] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffeedfa6330
| [   16.005062][  T317] ------------[ cut here ]------------
| [   16.005191][  T317] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/317
| [   16.005420][  T317] Modules linked in: ipvtap ipvlan
| [   16.005833][  T317] Tainted: [W]=WARN
[   16.005934][  T317] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.006099][  T317] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.006270][  T317] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.007101][  T317] RSP: 0018:ffa0000000b871b0 EFLAGS: 00010286
[   16.007268][  T317] RAX: 00000000ffffffa6 RBX: ff1100000bef2e40 RCX: 1ff4000000170dfc
[   16.007465][  T317] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bef2efc
[   16.007720][  T317] RBP: ff110000135d2000 R08: 1fe22000017de5e1 R09: ff1100000e6d0b80
[   16.007917][  T317] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.008112][  T317] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   16.008309][  T317] FS:  00007f8d68bc9840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   16.008541][  T317] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.008747][  T317] CR2: 0000000000445730 CR3: 0000000004f3f003 CR4: 0000000000771ef0
[   16.008945][  T317] PKRU: 55555554
[   16.009044][  T317] Call Trace:
[   16.009142][  T317]  <TASK>
[   16.009214][  T317]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.009350][  T317]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.009450][  T317]  ? ida_destroy (lib/idr.c:623)
[   16.009588][  T317]  __dev_notify_flags (net/core/dev.c:9787)
[   16.009728][  T317]  ? netif_change_name (net/core/dev.c:1495)
[   16.009861][  T317]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.009992][  T317]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   16.010158][  T317]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   16.010323][  T317]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   16.010462][  T317]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   16.010606][  T317]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   16.010747][  T317]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   16.010886][  T317]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   16.011025][  T317]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   16.011161][  T317]  ? __dev_get_by_name (net/core/dev.c:883)
[   16.011299][  T317]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   16.011441][  T317]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   16.011584][  T317]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.011728][  T317]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.011865][  T317]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.012002][  T317]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.012139][  T317]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.012275][  T317]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.012419][  T317]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.012561][  T317]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.012701][  T317]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.012833][  T317]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.012966][  T317]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.013099][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.013232][  T317]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.013364][  T317]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.013502][  T317]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.013635][  T317]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.013774][  T317]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.013910][  T317]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   16.014041][  T317]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   16.014176][  T317]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.014310][  T317]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.014443][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.014580][  T317]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.014718][  T317]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.014851][  T317]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.014985][  T317]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.015118][  T317]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.015250][  T317]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.015415][  T317]  ? move_addr_to_kernel (net/socket.c:258)
[   16.015556][  T317]  ___sys_sendmsg (net/socket.c:2752)
[   16.015693][  T317]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.015825][  T317]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.015967][  T317]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   16.016100][  T317]  __sys_sendmsg (net/socket.c:2784)
[   16.016233][  T317]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.016373][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.016511][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.016644][  T317]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.016781][  T317]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.016914][  T317]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.017136][  T317]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.017298][  T317] RIP: 0033:0x7f8d68e0308e
[   16.017434][  T317] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.018007][  T317] RSP: 002b:00007ffeedfa5bc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.018296][  T317] RAX: ffffffffffffffda RBX: 00007ffeedfa6378 RCX: 00007f8d68e0308e
[   16.018498][  T317] RDX: 0000000000000000 RSI: 00007ffeedfa5c70 RDI: 0000000000000005
[   16.018702][  T317] RBP: 00007ffeedfa5bd0 R08: 0000000000000000 R09: 0000000000000000
[   16.018986][  T317] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac7
[   16.019181][  T317] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffeedfa6330
| [   16.076321][  T319] ------------[ cut here ]------------
| [   16.076493][  T319] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/319
| [   16.076730][  T319] Modules linked in: ipvtap ipvlan
| [   16.077133][  T319] Tainted: [W]=WARN
[   16.077234][  T319] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.077396][  T319] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.077571][  T319] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.078036][  T319] RSP: 0018:ffa0000000bb7a80 EFLAGS: 00010286
[   16.078202][  T319] RAX: 00000000ffffffa6 RBX: ff1100000bef38c0 RCX: 1ff4000000176f16
[   16.078398][  T319] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bef397c
[   16.078596][  T319] RBP: ff1100000fd61000 R08: 1fe22000017de731 R09: ff11000013632e80
[   16.078794][  T319] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.078987][  T319] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fd61000
[   16.079185][  T319] FS:  00007f9678c0e840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   16.079414][  T319] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.079584][  T319] CR2: 0000000000445730 CR3: 000000000f9d5004 CR4: 0000000000771ef0
[   16.079786][  T319] PKRU: 55555554
[   16.079883][  T319] Call Trace:
[   16.079980][  T319]  <TASK>
[   16.080049][  T319]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.080186][  T319]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.080320][  T319]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.080421][  T319]  register_netdevice (net/core/dev.c:11488)
[   16.080559][  T319]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.080727][  T319]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.080858][  T319]  register_netdev (net/core/dev.c:11552)
[   16.080989][  T319]  loopback_net_init (drivers/net/loopback.c:218)
[   16.081120][  T319]  ops_init (net/core/net_namespace.c:137)
[   16.081221][  T319]  setup_net (net/core/net_namespace.c:446)
[   16.081319][  T319]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.081449][  T319]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.081586][  T319]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.081725][  T319]  copy_net_ns (net/core/net_namespace.c:579)
[   16.081857][  T319]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.081991][  T319]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.082122][  T319]  ksys_unshare (kernel/fork.c:3243)
[   16.082257][  T319]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.082389][  T319]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.082527][  T319]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.082664][  T319]  ? __ia32_sys_open (fs/open.c:1374)
[   16.082797][  T319]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.082926][  T319]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.083055][  T319]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.083185][  T319]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.083315][  T319]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.083446][  T319]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.083611][  T319] RIP: 0033:0x7f9678ed0bcb
[   16.083752][  T319] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.084217][  T319] RSP: 002b:00007ffcfc220a38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.084420][  T319] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9678ed0bcb
[   16.084620][  T319] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.084820][  T319] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.085016][  T319] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcfc222c60
[   16.085213][  T319] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcfc22387e
| [   16.089425][  T319] ------------[ cut here ]------------
| [   16.089569][  T319] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/319
| [   16.089800][  T319] Modules linked in: ipvtap ipvlan
| [   16.090191][  T319] Tainted: [W]=WARN
[   16.090289][  T319] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.090453][  T319] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.090627][  T319] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.091089][  T319] RSP: 0018:ffa0000000bb7918 EFLAGS: 00010286
[   16.091252][  T319] RAX: 00000000ffffffa6 RBX: ff1100000d5deac0 RCX: 1ff4000000176ee9
[   16.091447][  T319] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d5deb7c
[   16.091644][  T319] RBP: ff1100001374c000 R08: 1fe2200001abbd71 R09: ff11000013632e80
[   16.091842][  T319] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.092034][  T319] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001374c000
[   16.092230][  T319] FS:  00007f9678c0e840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   16.092458][  T319] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.092625][  T319] CR2: 0000000000445730 CR3: 000000000f9d5004 CR4: 0000000000771ef0
[   16.092824][  T319] PKRU: 55555554
[   16.092922][  T319] Call Trace:
[   16.093019][  T319]  <TASK>
[   16.093085][  T319]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.093217][  T319]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.093348][  T319]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.093447][  T319]  register_netdevice (net/core/dev.c:11488)
[   16.093584][  T319]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.093751][  T319]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.093882][  T319]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   16.094013][  T319]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   16.094142][  T319]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   16.094273][  T319]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   16.094403][  T319]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   16.094541][  T319]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   16.094677][  T319]  ops_init (net/core/net_namespace.c:137)
[   16.094778][  T319]  setup_net (net/core/net_namespace.c:446)
[   16.094880][  T319]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.095008][  T319]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.095137][  T319]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.095270][  T319]  copy_net_ns (net/core/net_namespace.c:579)
[   16.095400][  T319]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.095537][  T319]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.095671][  T319]  ksys_unshare (kernel/fork.c:3243)
[   16.095805][  T319]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.095934][  T319]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.096063][  T319]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.096194][  T319]  ? __ia32_sys_open (fs/open.c:1374)
[   16.096326][  T319]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.096455][  T319]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.096588][  T319]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.096723][  T319]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.096853][  T319]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.096982][  T319]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.097143][  T319] RIP: 0033:0x7f9678ed0bcb
[   16.097277][  T319] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.097747][  T319] RSP: 002b:00007ffcfc220a38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.098028][  T319] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9678ed0bcb
[   16.098219][  T319] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.098412][  T319] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.098697][  T319] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcfc222c60
[   16.098888][  T319] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcfc22387e
| [   16.103177][  T319] ------------[ cut here ]------------
| [   16.103312][  T319] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/319
| [   16.103626][  T319] Modules linked in: ipvtap ipvlan
| [   16.104023][  T319] Tainted: [W]=WARN
[   16.104211][  T319] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.104379][  T319] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.104553][  T319] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.105115][  T319] RSP: 0018:ffa0000000bb78f8 EFLAGS: 00010286
[   16.105295][  T319] RAX: 00000000ffffffa6 RBX: ff11000012bfc580 RCX: 1ff4000000176ee5
[   16.105604][  T319] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012bfc63c
[   16.105805][  T319] RBP: ff1100001375c000 R08: 1fe220000257f8c9 R09: ff11000013632e80
[   16.106087][  T319] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.106281][  T319] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001375c000
[   16.106485][  T319] FS:  00007f9678c0e840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   16.106809][  T319] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.106972][  T319] CR2: 0000000000445730 CR3: 000000000f9d5004 CR4: 0000000000771ef0
[   16.107171][  T319] PKRU: 55555554
[   16.107356][  T319] Call Trace:
[   16.107455][  T319]  <TASK>
[   16.107528][  T319]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.107663][  T319]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.107794][  T319]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.107982][  T319]  register_netdevice (net/core/dev.c:11488)
[   16.108114][  T319]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.108278][  T319]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.108412][  T319]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   16.108634][  T319]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   16.108770][  T319]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   16.108903][  T319]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   16.109036][  T319]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   16.109254][  T319]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   16.109386][  T319]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   16.109523][  T319]  vti_init_net (net/ipv4/ip_vti.c:517)
[   16.109660][  T319]  ops_init (net/core/net_namespace.c:137)
[   16.109762][  T319]  setup_net (net/core/net_namespace.c:446)
[   16.109862][  T319]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.109993][  T319]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.110125][  T319]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.110344][  T319]  copy_net_ns (net/core/net_namespace.c:579)
[   16.110481][  T319]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.110618][  T319]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.110756][  T319]  ksys_unshare (kernel/fork.c:3243)
[   16.110973][  T319]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.111104][  T319]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.111235][  T319]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.111366][  T319]  ? __ia32_sys_open (fs/open.c:1374)
[   16.111590][  T319]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.111729][  T319]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.111860][  T319]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.111990][  T319]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.112209][  T319]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.112342][  T319]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.112510][  T319] RIP: 0033:0x7f9678ed0bcb
[   16.112647][  T319] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.113210][  T319] RSP: 002b:00007ffcfc220a38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.113501][  T319] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9678ed0bcb
[   16.113699][  T319] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.113896][  T319] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.114180][  T319] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcfc222c60
[   16.114375][  T319] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcfc22387e
| [   16.118942][  T319] ------------[ cut here ]------------
| [   16.119079][  T319] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/319
| [   16.119307][  T319] Modules linked in: ipvtap ipvlan
| [   16.119717][  T319] Tainted: [W]=WARN
[   16.119817][  T319] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.119979][  T319] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.120149][  T319] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.120617][  T319] RSP: 0018:ffa0000000bb7a78 EFLAGS: 00010286
[   16.120790][  T319] RAX: 00000000ffffffa6 RBX: ff1100000becf8c0 RCX: 1ff4000000176f15
[   16.120986][  T319] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000becf97c
[   16.121181][  T319] RBP: ff11000013774000 R08: 1fe22000017d9f31 R09: ff11000013632e80
[   16.121376][  T319] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.121575][  T319] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013774000
[   16.121861][  T319] FS:  00007f9678c0e840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   16.122089][  T319] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.122254][  T319] CR2: 0000000000445730 CR3: 000000000f9d5004 CR4: 0000000000771ef0
[   16.122547][  T319] PKRU: 55555554
[   16.122643][  T319] Call Trace:
[   16.122744][  T319]  <TASK>
[   16.122811][  T319]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.122939][  T319]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.123163][  T319]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.123262][  T319]  register_netdevice (net/core/dev.c:11488)
[   16.123394][  T319]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.123557][  T319]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.123780][  T319]  register_netdev (net/core/dev.c:11552)
[   16.123908][  T319]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   16.124047][  T319]  ops_init (net/core/net_namespace.c:137)
[   16.124146][  T319]  setup_net (net/core/net_namespace.c:446)
[   16.124243][  T319]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.124461][  T319]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.124593][  T319]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.124729][  T319]  copy_net_ns (net/core/net_namespace.c:579)
[   16.124859][  T319]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.125081][  T319]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.125210][  T319]  ksys_unshare (kernel/fork.c:3243)
[   16.125339][  T319]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.125475][  T319]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.125696][  T319]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.125824][  T319]  ? __ia32_sys_open (fs/open.c:1374)
[   16.125955][  T319]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.126090][  T319]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.126304][  T319]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.126433][  T319]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.126569][  T319]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.126785][  T319]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.126945][  T319] RIP: 0033:0x7f9678ed0bcb
[   16.127084][  T319] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.127636][  T319] RSP: 002b:00007ffcfc220a38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.127837][  T319] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9678ed0bcb
[   16.128123][  T319] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.128314][  T319] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.128510][  T319] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcfc222c60
[   16.128795][  T319] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcfc22387e
| [   16.133329][  T319] ------------[ cut here ]------------
| [   16.133460][  T319] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/319
| [   16.133782][  T319] Modules linked in: ipvtap ipvlan
| [   16.134268][  T319] Tainted: [W]=WARN
[   16.134365][  T319] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.134535][  T319] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.134706][  T319] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.135258][  T319] RSP: 0018:ffa0000000bb7a68 EFLAGS: 00010286
[   16.135514][  T319] RAX: 00000000ffffffa6 RBX: ff1100000b5d0e40 RCX: 1ff4000000176f13
[   16.135712][  T319] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b5d0efc
[   16.135904][  T319] RBP: ff110000137a1000 R08: 1fe22000016ba1e1 R09: ff11000013632e80
[   16.136183][  T319] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.136379][  T319] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000137a1000
[   16.136580][  T319] FS:  00007f9678c0e840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   16.136896][  T319] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.137057][  T319] CR2: 0000000000445730 CR3: 000000000f9d5004 CR4: 0000000000771ef0
[   16.137346][  T319] PKRU: 55555554
[   16.137441][  T319] Call Trace:
[   16.137542][  T319]  <TASK>
[   16.137609][  T319]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.137743][  T319]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.137957][  T319]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.138055][  T319]  register_netdevice (net/core/dev.c:11488)
[   16.138186][  T319]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.138356][  T319]  register_netdev (net/core/dev.c:11552)
[   16.138573][  T319]  sit_init_net (net/ipv6/sit.c:1860)
[   16.138709][  T319]  ops_init (net/core/net_namespace.c:137)
[   16.138807][  T319]  setup_net (net/core/net_namespace.c:446)
[   16.138905][  T319]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.139032][  T319]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.139252][  T319]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.139382][  T319]  copy_net_ns (net/core/net_namespace.c:579)
[   16.139515][  T319]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.139648][  T319]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.139783][  T319]  ksys_unshare (kernel/fork.c:3243)
[   16.139910][  T319]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.140039][  T319]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.140173][  T319]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.140388][  T319]  ? __ia32_sys_open (fs/open.c:1374)
[   16.140524][  T319]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.140659][  T319]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.140788][  T319]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.141001][  T319]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.141145][  T319]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.141273][  T319]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.141522][  T319] RIP: 0033:0x7f9678ed0bcb
[   16.141660][  T319] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.142214][  T319] RSP: 002b:00007ffcfc220a38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.142442][  T319] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9678ed0bcb
[   16.142641][  T319] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.142842][  T319] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.143037][  T319] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcfc222c60
[   16.143323][  T319] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcfc22387e
| [   16.150982][  T319] ------------[ cut here ]------------
| [   16.151124][  T319] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/319
| [   16.151345][  T319] Modules linked in: ipvtap ipvlan
| [   16.151857][  T319] Tainted: [W]=WARN
[   16.151955][  T319] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.152121][  T319] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.152288][  T319] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.152808][  T319] RSP: 0018:ffa0000000bb7a78 EFLAGS: 00010286
[   16.152977][  T319] RAX: 00000000ffffffa6 RBX: ff110000137fc040 RCX: 1ff4000000176f15
[   16.153169][  T319] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000137fc0fc
[   16.153360][  T319] RBP: ff110000137cc000 R08: 1fe22000026ff821 R09: ff11000013632e80
[   16.153557][  T319] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.153805][  T319] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000137cc000
[   16.154005][  T319] FS:  00007f9678c0e840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   16.154232][  T319] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.154393][  T319] CR2: 0000000000445730 CR3: 000000000f9d5004 CR4: 0000000000771ef0
[   16.154594][  T319] PKRU: 55555554
[   16.154745][  T319] Call Trace:
[   16.154848][  T319]  <TASK>
[   16.154915][  T319]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.155043][  T319]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.155172][  T319]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.155272][  T319]  register_netdevice (net/core/dev.c:11488)
[   16.155405][  T319]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.155569][  T319]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.155762][  T319]  register_netdev (net/core/dev.c:11552)
[   16.155893][  T319]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   16.156022][  T319]  ops_init (net/core/net_namespace.c:137)
[   16.156120][  T319]  setup_net (net/core/net_namespace.c:446)
[   16.156217][  T319]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.156344][  T319]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.156478][  T319]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.156615][  T319]  copy_net_ns (net/core/net_namespace.c:579)
[   16.156801][  T319]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.156932][  T319]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.157061][  T319]  ksys_unshare (kernel/fork.c:3243)
[   16.157189][  T319]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.157320][  T319]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.157455][  T319]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.157589][  T319]  ? __ia32_sys_open (fs/open.c:1374)
[   16.157775][  T319]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.157903][  T319]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.158032][  T319]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.158162][  T319]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.158290][  T319]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.158427][  T319]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.158593][  T319] RIP: 0033:0x7f9678ed0bcb
[   16.158785][  T319] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.159242][  T319] RSP: 002b:00007ffcfc220a38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.159444][  T319] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9678ed0bcb
[   16.159640][  T319] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.159886][  T319] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.160077][  T319] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcfc222c60
[   16.160276][  T319] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcfc22387e
| [   16.200352][  T320] ------------[ cut here ]------------
| [   16.200515][  T320] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/320
| [   16.200745][  T320] Modules linked in: ipvtap ipvlan
| [   16.201136][  T320] Tainted: [W]=WARN
[   16.201232][  T320] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.201393][  T320] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.201572][  T320] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.202023][  T320] RSP: 0018:ffa0000000bc7020 EFLAGS: 00010286
[   16.202179][  T320] RAX: 00000000ffffffa6 RBX: ff110000137fdc40 RCX: 1ff4000000178dca
[   16.202367][  T320] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000137fdcfc
[   16.202560][  T320] RBP: ff1100000fd61000 R08: 1fe22000026ffba1 R09: ff11000013635158
[   16.202806][  T320] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   16.202995][  T320] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   16.203184][  T320] FS:  00007fcb4d3b1840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   16.203407][  T320] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.203569][  T320] CR2: 00007fcb4d6811a0 CR3: 0000000004b0a006 CR4: 0000000000771ef0
[   16.203812][  T320] PKRU: 55555554
[   16.203908][  T320] Call Trace:
[   16.204002][  T320]  <TASK>
[   16.204067][  T320]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.204198][  T320]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.204297][  T320]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   16.204423][  T320]  __dev_notify_flags (net/core/dev.c:9787)
[   16.204557][  T320]  ? netif_change_name (net/core/dev.c:1495)
[   16.204694][  T320]  ? __dev_change_flags (net/core/dev.c:9752)
[   16.204821][  T320]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   16.204948][  T320]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.205089][  T320]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   16.205219][  T320]  netif_change_flags (net/core/dev.c:9820)
[   16.205348][  T320]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   16.205486][  T320]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   16.205616][  T320]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   16.205749][  T320]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   16.205907][  T320]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.206034][  T320]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.206162][  T320]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.206289][  T320]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.206420][  T320]  ? __kernel_text_address (kernel/extable.c:79)
[   16.206556][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.206691][  T320]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.206818][  T320]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.206946][  T320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.207073][  T320]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.207201][  T320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.207329][  T320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.207459][  T320]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   16.207592][  T320]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   16.207727][  T320]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   16.207854][  T320]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.207985][  T320]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   16.208117][  T320]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   16.208248][  T320]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.208378][  T320]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.208510][  T320]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.208637][  T320]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.208771][  T320]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.208898][  T320]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.209028][  T320]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.209156][  T320]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.209284][  T320]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.209411][  T320]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.209546][  T320]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.209680][  T320]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.209808][  T320]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.209935][  T320]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.210061][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.210190][  T320]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.210317][  T320]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.210446][  T320]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.210580][  T320]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.210715][  T320]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.210846][  T320]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   16.210973][  T320]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   16.211104][  T320]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.211233][  T320]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.211362][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.211494][  T320]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.211623][  T320]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.211758][  T320]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.211888][  T320]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.212018][  T320]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.212145][  T320]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.212303][  T320]  ? move_addr_to_kernel (net/socket.c:258)
[   16.212432][  T320]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.212566][  T320]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.212700][  T320]  ___sys_sendmsg (net/socket.c:2752)
[   16.212829][  T320]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   16.212989][  T320]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.213129][  T320]  __sys_sendmsg (net/socket.c:2784)
[   16.213258][  T320]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.213388][  T320]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   16.213559][  T320]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   16.213694][  T320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.213822][  T320]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.213950][  T320]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.214077][  T320]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.214207][  T320]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.214365][  T320] RIP: 0033:0x7fcb4d5eb08e
[   16.214504][  T320] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.214967][  T320] RSP: 002b:00007ffd37da2270 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.215160][  T320] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fcb4d5eb08e
[   16.215350][  T320] RDX: 0000000000000000 RSI: 00007ffd37da2320 RDI: 0000000000000005
[   16.215547][  T320] RBP: 00007ffd37da2280 R08: 0000000000000000 R09: 0000000000000000
[   16.215742][  T320] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac7
[   16.215933][  T320] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd37da29f0
| [   16.331768][  T323] ------------[ cut here ]------------
| [   16.331975][  T323] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/323
| [   16.332264][  T323] Modules linked in: ipvtap ipvlan
| [   16.332814][  T323] Tainted: [W]=WARN
[   16.332967][  T323] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.333186][  T323] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.333411][  T323] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.333967][  T323] RSP: 0018:ffa0000000b270b0 EFLAGS: 00010286
[   16.334187][  T323] RAX: 00000000ffffffa6 RBX: ff110000107a83c0 RCX: 1ff4000000164ddc
[   16.334439][  T323] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000107a847c
[   16.334812][  T323] RBP: ff11000007edc000 R08: 1fe22000020f5091 R09: ff1100000f3a0b80
[   16.335135][  T323] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   16.335457][  T323] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   16.335813][  T323] FS:  00007f03e83d2840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   16.336177][  T323] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.336498][  T323] CR2: 0000000000445730 CR3: 000000000f71c004 CR4: 0000000000771ef0
[   16.336765][  T323] PKRU: 55555554
[   16.336915][  T323] Call Trace:
[   16.337065][  T323]  <TASK>
[   16.337185][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.337370][  T323]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   16.337567][  T323]  notifier_call_chain (kernel/notifier.c:85)
[   16.337770][  T323]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   16.337956][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.338142][  T323]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   16.338328][  T323]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   16.338492][  T323]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   16.338730][  T323]  ? ida_destroy (lib/idr.c:623)
[   16.338918][  T323]  netdev_upper_dev_link (net/core/dev.c:8972)
[   16.339105][  T323]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   16.339292][  T323] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   16.339487][  T323]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   16.339688][  T323]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   16.339876][  T323] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   16.340063][  T323]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   16.340251][  T323]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   16.340436][  T323]  ? __dev_get_by_name (net/core/dev.c:883)
[   16.340625][  T323]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   16.340829][  T323]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   16.341020][  T323]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.341207][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.341391][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.341586][  T323]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.341786][  T323]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.341970][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.342163][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.342352][  T323]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.342548][  T323]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.342747][  T323]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.342934][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.343118][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.343306][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.343498][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.343697][  T323]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.343882][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.344069][  T323]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.344259][  T323]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   16.344444][  T323]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   16.344640][  T323]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.344841][  T323]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.345027][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.345214][  T323]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.345404][  T323]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.345600][  T323]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.345800][  T323]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.345988][  T323]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.346172][  T323]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.346388][  T323]  ? move_addr_to_kernel (net/socket.c:258)
[   16.346589][  T323]  ___sys_sendmsg (net/socket.c:2752)
[   16.346786][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.346971][  T323]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.347166][  T323]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   16.347353][  T323]  __sys_sendmsg (net/socket.c:2784)
[   16.347546][  T323]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.347748][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.347936][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.348122][  T323]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.348306][  T323]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.348495][  T323]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.348696][  T323]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.348914][  T323] RIP: 0033:0x7f03e860c08e
[   16.349106][  T323] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.349648][  T323] RSP: 002b:00007ffde387f520 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.349916][  T323] RAX: ffffffffffffffda RBX: 00007ffde387fcd8 RCX: 00007f03e860c08e
[   16.350166][  T323] RDX: 0000000000000000 RSI: 00007ffde387f5d0 RDI: 0000000000000005
[   16.350420][  T323] RBP: 00007ffde387f530 R08: 0000000000000000 R09: 0000000000000000
[   16.350694][  T323] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac7
[   16.350944][  T323] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffde387fc90
| [   16.353024][  T323] ------------[ cut here ]------------
| [   16.353163][  T323] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/323
| [   16.353389][  T323] Modules linked in: ipvtap ipvlan
| [   16.353808][  T323] Tainted: [W]=WARN
[   16.353907][  T323] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.354071][  T323] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.354243][  T323] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.354729][  T323] RSP: 0018:ffa0000000b271b0 EFLAGS: 00010286
[   16.354894][  T323] RAX: 00000000ffffffa6 RBX: ff1100000d6b7700 RCX: 1ff4000000164dfc
[   16.355090][  T323] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d6b77bc
[   16.355287][  T323] RBP: ff1100000f9ea000 R08: 1fe2200001ad6ef9 R09: ff1100000f3a0b80
[   16.355487][  T323] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.355689][  T323] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   16.355885][  T323] FS:  00007f03e83d2840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   16.356114][  T323] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.356278][  T323] CR2: 00007fd3aaeca2a0 CR3: 000000000f71c006 CR4: 0000000000771ef0
[   16.356480][  T323] PKRU: 55555554
[   16.356578][  T323] Call Trace:
[   16.356682][  T323]  <TASK>
[   16.356750][  T323]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.356882][  T323]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.356982][  T323]  ? ida_destroy (lib/idr.c:623)
[   16.357112][  T323]  __dev_notify_flags (net/core/dev.c:9787)
[   16.357245][  T323]  ? netif_change_name (net/core/dev.c:1495)
[   16.357376][  T323]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.357511][  T323]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   16.357684][  T323]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   16.357847][  T323]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   16.357979][  T323]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   16.358119][  T323]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   16.358251][  T323]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   16.358384][  T323]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   16.358520][  T323]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   16.358659][  T323]  ? __dev_get_by_name (net/core/dev.c:883)
[   16.358791][  T323]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   16.358927][  T323]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   16.359063][  T323]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.359196][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.359325][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.359456][  T323]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.359590][  T323]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.359726][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.359861][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.359994][  T323]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.360126][  T323]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.360258][  T323]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.360389][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.360522][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.360659][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.360792][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.360925][  T323]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.361056][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.361187][  T323]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.361323][  T323]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   16.361453][  T323]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   16.361590][  T323]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.361729][  T323]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.361861][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.361994][  T323]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.362128][  T323]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.362263][  T323]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.362394][  T323]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.362530][  T323]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.362666][  T323]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.362829][  T323]  ? move_addr_to_kernel (net/socket.c:258)
[   16.362964][  T323]  ___sys_sendmsg (net/socket.c:2752)
[   16.363096][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.363228][  T323]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.363368][  T323]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   16.363505][  T323]  __sys_sendmsg (net/socket.c:2784)
[   16.363636][  T323]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.363777][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.363908][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.364040][  T323]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.364170][  T323]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.364304][  T323]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.364435][  T323]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.364603][  T323] RIP: 0033:0x7f03e860c08e
[   16.364745][  T323] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.365213][  T323] RSP: 002b:00007ffde387f520 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.365413][  T323] RAX: ffffffffffffffda RBX: 00007ffde387fcd8 RCX: 00007f03e860c08e
[   16.365611][  T323] RDX: 0000000000000000 RSI: 00007ffde387f5d0 RDI: 0000000000000005
[   16.365810][  T323] RBP: 00007ffde387f530 R08: 0000000000000000 R09: 0000000000000000
[   16.366005][  T323] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac7
[   16.366198][  T323] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffde387fc90
| [   16.420201][  T325] ------------[ cut here ]------------
| [   16.420348][  T325] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/325
| [   16.420578][  T325] Modules linked in: ipvtap ipvlan
| [   16.420986][  T325] Tainted: [W]=WARN
[   16.421084][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.421250][  T325] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.421421][  T325] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.421910][  T325] RSP: 0018:ffa0000000667a80 EFLAGS: 00010286
[   16.422076][  T325] RAX: 00000000ffffffa6 RBX: ff1100000d6b6ac0 RCX: 1ff40000000ccf16
[   16.422271][  T325] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d6b6b7c
[   16.422465][  T325] RBP: ff1100000e6f4000 R08: 1fe2200001ad6d71 R09: ff1100000e7d5180
[   16.422668][  T325] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.422862][  T325] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e6f4000
[   16.423057][  T325] FS:  00007fd8647d2840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   16.423286][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.423449][  T325] CR2: 00007fd8649d9430 CR3: 000000000ea2c002 CR4: 0000000000771ef0
[   16.423644][  T325] PKRU: 55555554
[   16.423747][  T325] Call Trace:
[   16.423844][  T325]  <TASK>
[   16.423911][  T325]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.424042][  T325]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.424171][  T325]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.424271][  T325]  register_netdevice (net/core/dev.c:11488)
[   16.424403][  T325]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.424569][  T325]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.425260][  T325]  register_netdev (net/core/dev.c:11552)
[   16.425392][  T325]  loopback_net_init (drivers/net/loopback.c:218)
[   16.425577][  T325]  ops_init (net/core/net_namespace.c:137)
[   16.425690][  T325]  setup_net (net/core/net_namespace.c:446)
[   16.425794][  T325]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.425930][  T325]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.426066][  T325]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.426202][  T325]  copy_net_ns (net/core/net_namespace.c:579)
[   16.426339][  T325]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.426480][  T325]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.426617][  T325]  ksys_unshare (kernel/fork.c:3243)
[   16.426757][  T325]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.426891][  T325]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.427028][  T325]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.427165][  T325]  ? __ia32_sys_open (fs/open.c:1374)
[   16.427301][  T325]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.427438][  T325]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.427579][  T325]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.427721][  T325]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.427856][  T325]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.427992][  T325]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.428159][  T325] RIP: 0033:0x7fd864a94bcb
[   16.428301][  T325] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.428794][  T325] RSP: 002b:00007ffc438382c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.428997][  T325] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd864a94bcb
[   16.429199][  T325] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.429398][  T325] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.429603][  T325] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc4383a4f0
[   16.429808][  T325] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc4383b87e
| [   16.434030][  T325] ------------[ cut here ]------------
| [   16.434177][  T325] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/325
| [   16.434409][  T325] Modules linked in: ipvtap ipvlan
| [   16.435025][  T325] Tainted: [W]=WARN
[   16.435130][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.435297][  T325] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.435473][  T325] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.435953][  T325] RSP: 0018:ffa0000000667918 EFLAGS: 00010286
[   16.436123][  T325] RAX: 00000000ffffffa6 RBX: ff1100000d5de200 RCX: 1ff40000000ccee9
[   16.436322][  T325] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d5de2bc
[   16.436526][  T325] RBP: ff11000012dac000 R08: 1fe2200001abbc59 R09: ff1100000e7d5180
[   16.436731][  T325] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.436931][  T325] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012dac000
[   16.437131][  T325] FS:  00007fd8647d2840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   16.437366][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.437540][  T325] CR2: 00007fd8649d9430 CR3: 000000000ea2c002 CR4: 0000000000771ef0
[   16.437748][  T325] PKRU: 55555554
[   16.437849][  T325] Call Trace:
[   16.437950][  T325]  <TASK>
[   16.438020][  T325]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.438154][  T325]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.438292][  T325]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.438393][  T325]  register_netdevice (net/core/dev.c:11488)
[   16.438532][  T325]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.438704][  T325]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.438841][  T325]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   16.438975][  T325]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   16.439109][  T325]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   16.439247][  T325]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   16.439382][  T325]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   16.439521][  T325]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   16.439660][  T325]  ops_init (net/core/net_namespace.c:137)
[   16.439763][  T325]  setup_net (net/core/net_namespace.c:446)
[   16.439864][  T325]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.439998][  T325]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.440131][  T325]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.440269][  T325]  copy_net_ns (net/core/net_namespace.c:579)
[   16.440404][  T325]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.440545][  T325]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.440687][  T325]  ksys_unshare (kernel/fork.c:3243)
[   16.440819][  T325]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.440952][  T325]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.441088][  T325]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.441224][  T325]  ? __ia32_sys_open (fs/open.c:1374)
[   16.441362][  T325]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.441502][  T325]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.441637][  T325]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.441779][  T325]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.441915][  T325]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.442050][  T325]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.442217][  T325] RIP: 0033:0x7fd864a94bcb
[   16.442357][  T325] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.442840][  T325] RSP: 002b:00007ffc438382c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.443040][  T325] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd864a94bcb
[   16.443240][  T325] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.443440][  T325] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.443642][  T325] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc4383a4f0
[   16.443847][  T325] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc4383b87e
| [   16.454932][  T325] ------------[ cut here ]------------
| [   16.455092][  T325] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/325
| [   16.455331][  T325] Modules linked in: ipvtap ipvlan
| [   16.455760][  T325] Tainted: [W]=WARN
[   16.455865][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.456034][  T325] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.456211][  T325] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.456700][  T325] RSP: 0018:ffa00000006678f8 EFLAGS: 00010286
[   16.456871][  T325] RAX: 00000000ffffffa6 RBX: ff1100000d5df540 RCX: 1ff40000000ccee5
[   16.457075][  T325] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d5df5fc
[   16.457280][  T325] RBP: ff110000138d4000 R08: 1fe2200001abbec1 R09: ff1100000e7d5180
[   16.457484][  T325] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.457692][  T325] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000138d4000
[   16.457896][  T325] FS:  00007fd8647d2840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   16.458134][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.458305][  T325] CR2: 00007fd8649d9430 CR3: 000000000ea2c002 CR4: 0000000000771ef0
[   16.458512][  T325] PKRU: 55555554
[   16.458615][  T325] Call Trace:
[   16.458722][  T325]  <TASK>
[   16.458793][  T325]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.458932][  T325]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.459067][  T325]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.459171][  T325]  register_netdevice (net/core/dev.c:11488)
[   16.459309][  T325]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.459482][  T325]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.459620][  T325]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   16.459767][  T325]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   16.459905][  T325]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   16.460042][  T325]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   16.460178][  T325]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   16.460315][  T325]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   16.460453][  T325]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   16.460598][  T325]  vti_init_net (net/ipv4/ip_vti.c:517)
[   16.460739][  T325]  ops_init (net/core/net_namespace.c:137)
[   16.460843][  T325]  setup_net (net/core/net_namespace.c:446)
[   16.460950][  T325]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.461085][  T325]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.461221][  T325]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.461359][  T325]  copy_net_ns (net/core/net_namespace.c:579)
[   16.461500][  T325]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.461638][  T325]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.461780][  T325]  ksys_unshare (kernel/fork.c:3243)
[   16.461916][  T325]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.462050][  T325]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.462184][  T325]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.462319][  T325]  ? __ia32_sys_open (fs/open.c:1374)
[   16.462455][  T325]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.462594][  T325]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.462734][  T325]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.462870][  T325]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.463005][  T325]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.463139][  T325]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.463309][  T325] RIP: 0033:0x7fd864a94bcb
[   16.463450][  T325] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.463938][  T325] RSP: 002b:00007ffc438382c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.464141][  T325] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd864a94bcb
[   16.464343][  T325] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.464551][  T325] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.464759][  T325] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc4383a4f0
[   16.464962][  T325] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc4383b87e
| [   16.469126][  T325] ------------[ cut here ]------------
| [   16.469275][  T325] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/325
| [   16.469513][  T325] Modules linked in: ipvtap ipvlan
| [   16.469932][  T325] Tainted: [W]=WARN
[   16.470033][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.470199][  T325] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.470375][  T325] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.470858][  T325] RSP: 0018:ffa0000000667a78 EFLAGS: 00010286
[   16.471025][  T325] RAX: 00000000ffffffa6 RBX: ff1100000d6b63c0 RCX: 1ff40000000ccf15
[   16.471225][  T325] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d6b647c
[   16.471425][  T325] RBP: ff1100000fcd9000 R08: 1fe2200001ad6c91 R09: ff1100000e7d5180
[   16.471631][  T325] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.471834][  T325] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fcd9000
[   16.472036][  T325] FS:  00007fd8647d2840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   16.472270][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.472438][  T325] CR2: 00007fd8649d9430 CR3: 000000000ea2c002 CR4: 0000000000771ef0
[   16.472645][  T325] PKRU: 55555554
[   16.472751][  T325] Call Trace:
[   16.472851][  T325]  <TASK>
[   16.472920][  T325]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.473053][  T325]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.473187][  T325]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.473289][  T325]  register_netdevice (net/core/dev.c:11488)
[   16.473428][  T325]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.473601][  T325]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.473744][  T325]  register_netdev (net/core/dev.c:11552)
[   16.473878][  T325]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   16.474013][  T325]  ops_init (net/core/net_namespace.c:137)
[   16.474116][  T325]  setup_net (net/core/net_namespace.c:446)
[   16.474217][  T325]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.474351][  T325]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.474489][  T325]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.474625][  T325]  copy_net_ns (net/core/net_namespace.c:579)
[   16.474765][  T325]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.474903][  T325]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.475037][  T325]  ksys_unshare (kernel/fork.c:3243)
[   16.475171][  T325]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.475309][  T325]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.475443][  T325]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.475583][  T325]  ? __ia32_sys_open (fs/open.c:1374)
[   16.475725][  T325]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.475860][  T325]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.475994][  T325]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.476127][  T325]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.476261][  T325]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.476397][  T325]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.476567][  T325] RIP: 0033:0x7fd864a94bcb
[   16.476712][  T325] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.477186][  T325] RSP: 002b:00007ffc438382c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.477390][  T325] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd864a94bcb
[   16.477594][  T325] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.477798][  T325] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.477997][  T325] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc4383a4f0
[   16.478199][  T325] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc4383b87e
| [   16.482374][  T325] ------------[ cut here ]------------
| [   16.482522][  T325] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/325
| [   16.483253][  T325] Modules linked in: ipvtap ipvlan
| [   16.483718][  T325] Tainted: [W]=WARN
[   16.483875][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.484045][  T325] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.484220][  T325] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.484752][  T325] RSP: 0018:ffa0000000667a68 EFLAGS: 00010286
[   16.484921][  T325] RAX: 00000000ffffffa6 RBX: ff11000012bfd8c0 RCX: 1ff40000000ccf13
[   16.485123][  T325] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012bfd97c
[   16.485322][  T325] RBP: ff110000138fc000 R08: 1fe220000257fb31 R09: ff1100000e7d5180
[   16.485525][  T325] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.485780][  T325] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000138fc000
[   16.485984][  T325] FS:  00007fd8647d2840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   16.486217][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.486384][  T325] CR2: 00007fd8649d9430 CR3: 000000000ea2c002 CR4: 0000000000771ef0
[   16.486588][  T325] PKRU: 55555554
[   16.486742][  T325] Call Trace:
[   16.486841][  T325]  <TASK>
[   16.486911][  T325]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.487044][  T325]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.487178][  T325]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.487279][  T325]  register_netdevice (net/core/dev.c:11488)
[   16.487416][  T325]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.487589][  T325]  register_netdev (net/core/dev.c:11552)
[   16.487779][  T325]  sit_init_net (net/ipv6/sit.c:1860)
[   16.487917][  T325]  ops_init (net/core/net_namespace.c:137)
[   16.488019][  T325]  setup_net (net/core/net_namespace.c:446)
[   16.488122][  T325]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.488255][  T325]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.488389][  T325]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.488528][  T325]  copy_net_ns (net/core/net_namespace.c:579)
[   16.488717][  T325]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.488854][  T325]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.488988][  T325]  ksys_unshare (kernel/fork.c:3243)
[   16.489123][  T325]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.489257][  T325]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.489390][  T325]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.489528][  T325]  ? __ia32_sys_open (fs/open.c:1374)
[   16.489717][  T325]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.489851][  T325]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.489987][  T325]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.490120][  T325]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.490254][  T325]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.490387][  T325]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.490555][  T325] RIP: 0033:0x7fd864a94bcb
[   16.490752][  T325] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.491227][  T325] RSP: 002b:00007ffc438382c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.491426][  T325] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd864a94bcb
[   16.491628][  T325] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.491881][  T325] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.492080][  T325] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc4383a4f0
[   16.492278][  T325] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc4383b87e
| [   16.497749][  T325] ------------[ cut here ]------------
| [   16.497958][  T325] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/325
| [   16.498200][  T325] Modules linked in: ipvtap ipvlan
| [   16.498626][  T325] Tainted: [W]=WARN
[   16.498732][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.498898][  T325] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.499072][  T325] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.499554][  T325] RSP: 0018:ffa0000000667a78 EFLAGS: 00010286
[   16.499732][  T325] RAX: 00000000ffffffa6 RBX: ff110000137fa900 RCX: 1ff40000000ccf15
[   16.499932][  T325] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000137fa9bc
[   16.500132][  T325] RBP: ff11000013839000 R08: 1fe22000026ff539 R09: ff1100000e7d5180
[   16.500336][  T325] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.500542][  T325] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013839000
[   16.500750][  T325] FS:  00007fd8647d2840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   16.500985][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.501153][  T325] CR2: 00005559e9c93d5c CR3: 000000000ea2c005 CR4: 0000000000771ef0
[   16.501365][  T325] PKRU: 55555554
[   16.501464][  T325] Call Trace:
[   16.501569][  T325]  <TASK>
[   16.501638][  T325]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.501778][  T325]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.501910][  T325]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.502011][  T325]  register_netdevice (net/core/dev.c:11488)
[   16.502154][  T325]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.502318][  T325]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.502453][  T325]  register_netdev (net/core/dev.c:11552)
[   16.502593][  T325]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   16.502731][  T325]  ops_init (net/core/net_namespace.c:137)
[   16.502832][  T325]  setup_net (net/core/net_namespace.c:446)
[   16.502932][  T325]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.503077][  T325]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.503210][  T325]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.503344][  T325]  copy_net_ns (net/core/net_namespace.c:579)
[   16.503485][  T325]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.503621][  T325]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.503766][  T325]  ksys_unshare (kernel/fork.c:3243)
[   16.503907][  T325]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.504043][  T325]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.504175][  T325]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.504310][  T325]  ? __ia32_sys_open (fs/open.c:1374)
[   16.504445][  T325]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.504581][  T325]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.504721][  T325]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.504860][  T325]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.504992][  T325]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.505126][  T325]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.505289][  T325] RIP: 0033:0x7fd864a94bcb
[   16.505428][  T325] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.505916][  T325] RSP: 002b:00007ffc438382c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.506117][  T325] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd864a94bcb
[   16.506314][  T325] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.506524][  T325] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.506730][  T325] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc4383a4f0
[   16.506927][  T325] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc4383b87e
| [   16.538917][  T326] ------------[ cut here ]------------
| [   16.539115][  T326] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/326
| [   16.539394][  T326] Modules linked in: ipvtap ipvlan
| [   16.539914][  T326] Tainted: [W]=WARN
[   16.540071][  T326] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.540286][  T326] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.540516][  T326] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.541052][  T326] RSP: 0018:ffa0000000637020 EFLAGS: 00010286
[   16.541269][  T326] RAX: 00000000ffffffa6 RBX: ff110000104cbe00 RCX: 1ff40000000c6dca
[   16.541529][  T326] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104cbebc
[   16.541878][  T326] RBP: ff1100000e6f4000 R08: 1fe22000020997d9 R09: ff1100000903d158
[   16.542220][  T326] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   16.542554][  T326] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   16.542938][  T326] FS:  00007feb29ea4840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   16.543312][  T326] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.543588][  T326] CR2: 000000003c761988 CR3: 0000000004ae4001 CR4: 0000000000771ef0
[   16.543906][  T326] PKRU: 55555554
[   16.544104][  T326] Call Trace:
[   16.544306][  T326]  <TASK>
[   16.544445][  T326]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.544641][  T326]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.544806][  T326]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   16.544987][  T326]  __dev_notify_flags (net/core/dev.c:9787)
[   16.545171][  T326]  ? netif_change_name (net/core/dev.c:1495)
[   16.545353][  T326]  ? __dev_change_flags (net/core/dev.c:9752)
[   16.545544][  T326]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   16.545737][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.545922][  T326]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   16.546107][  T326]  netif_change_flags (net/core/dev.c:9820)
[   16.546295][  T326]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   16.546486][  T326]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   16.546685][  T326]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   16.546869][  T326]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   16.547097][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.547284][  T326]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.547466][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.547668][  T326]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.547852][  T326]  ? __kernel_text_address (kernel/extable.c:79)
[   16.548034][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.548219][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.548404][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.548598][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.548794][  T326]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.548972][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.549154][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.549339][  T326]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   16.549530][  T326]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   16.549726][  T326]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   16.549916][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.550102][  T326]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   16.550286][  T326]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   16.550479][  T326]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.550679][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.550858][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.551042][  T326]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.551221][  T326]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.551404][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.551599][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.551792][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.551976][  T326]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.552158][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.552340][  T326]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.552532][  T326]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.552730][  T326]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.552917][  T326]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.553097][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.553279][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.553460][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.553667][  T326]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.553849][  T326]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.554030][  T326]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.554214][  T326]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   16.554396][  T326]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   16.554587][  T326]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.554787][  T326]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.554970][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.555155][  T326]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.555335][  T326]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.555523][  T326]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.555722][  T326]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.555903][  T326]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.556083][  T326]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.556294][  T326]  ? move_addr_to_kernel (net/socket.c:258)
[   16.556485][  T326]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.556678][  T326]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.556861][  T326]  ___sys_sendmsg (net/socket.c:2752)
[   16.557042][  T326]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   16.557255][  T326]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.557449][  T326]  __sys_sendmsg (net/socket.c:2784)
[   16.557640][  T326]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.557832][  T326]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   16.558049][  T326]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   16.558231][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.558414][  T326]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.558603][  T326]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.558796][  T326]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.558978][  T326]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.559190][  T326] RIP: 0033:0x7feb2a0de08e
[   16.559377][  T326] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.559917][  T326] RSP: 002b:00007ffd40aaa9e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.560166][  T326] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007feb2a0de08e
[   16.560412][  T326] RDX: 0000000000000000 RSI: 00007ffd40aaaa90 RDI: 0000000000000005
[   16.560677][  T326] RBP: 00007ffd40aaa9f0 R08: 0000000000000000 R09: 0000000000000000
[   16.560925][  T326] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac7
[   16.561171][  T326] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd40aab160
| [   16.684919][  T329] ------------[ cut here ]------------
| [   16.685111][  T329] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/329
| [   16.685366][  T329] Modules linked in: ipvtap ipvlan
| [   16.685824][  T329] Tainted: [W]=WARN
[   16.685935][  T329] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.686120][  T329] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.686306][  T329] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.686824][  T329] RSP: 0018:ffa0000000bf70b0 EFLAGS: 00010286
[   16.687011][  T329] RAX: 00000000ffffffa6 RBX: ff1100000ba258c0 RCX: 1ff400000017eddc
[   16.687224][  T329] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba2597c
[   16.687436][  T329] RBP: ff11000007edc000 R08: 1fe2200001744b31 R09: ff1100000f715180
[   16.687661][  T329] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   16.687882][  T329] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   16.688095][  T329] FS:  00007f7b6a390840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   16.688345][  T329] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.688529][  T329] CR2: 0000000000445730 CR3: 000000001398e002 CR4: 0000000000771ef0
[   16.688748][  T329] PKRU: 55555554
[   16.688861][  T329] Call Trace:
[   16.688967][  T329]  <TASK>
[   16.689041][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.689195][  T329]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   16.689339][  T329]  notifier_call_chain (kernel/notifier.c:85)
[   16.689490][  T329]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   16.689633][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.689797][  T329]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   16.689940][  T329]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   16.690049][  T329]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   16.690230][  T329]  ? ida_destroy (lib/idr.c:623)
[   16.690403][  T329]  netdev_upper_dev_link (net/core/dev.c:8972)
[   16.690551][  T329]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   16.690787][  T329] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   16.690939][  T329]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   16.691083][  T329]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   16.691228][  T329] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   16.691372][  T329]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   16.691521][  T329]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   16.691736][  T329]  ? __dev_get_by_name (net/core/dev.c:883)
[   16.691885][  T329]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   16.692129][  T329]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   16.692280][  T329]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.692424][  T329]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.692571][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.692787][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.692929][  T329]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.693076][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.693221][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.693365][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.693512][  T329]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.693722][  T329]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.693864][  T329]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.694012][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.694155][  T329]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.694296][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.694439][  T329]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.694586][  T329]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.694805][  T329]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.694951][  T329]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   16.695099][  T329]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   16.695242][  T329]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.695385][  T329]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.695533][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.695771][  T329]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.695918][  T329]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.696071][  T329]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.696215][  T329]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.696359][  T329]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.696507][  T329]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.696738][  T329]  ? move_addr_to_kernel (net/socket.c:258)
[   16.696885][  T329]  ___sys_sendmsg (net/socket.c:2752)
[   16.697027][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.697177][  T329]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.697328][  T329]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   16.697478][  T329]  __sys_sendmsg (net/socket.c:2784)
[   16.697621][  T329]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.697773][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.697917][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.698066][  T329]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.698211][  T329]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.698354][  T329]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.698502][  T329]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.698685][  T329] RIP: 0033:0x7f7b6a5ca08e
[   16.698834][  T329] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.699349][  T329] RSP: 002b:00007ffc44a06540 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.699568][  T329] RAX: ffffffffffffffda RBX: 00007ffc44a06cf8 RCX: 00007f7b6a5ca08e
[   16.699786][  T329] RDX: 0000000000000000 RSI: 00007ffc44a065f0 RDI: 0000000000000005
[   16.700006][  T329] RBP: 00007ffc44a06550 R08: 0000000000000000 R09: 0000000000000000
[   16.700219][  T329] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac7
[   16.700431][  T329] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc44a06cb0
| [   16.702129][  T329] ------------[ cut here ]------------
| [   16.702263][  T329] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/329
| [   16.702500][  T329] Modules linked in: ipvtap ipvlan
| [   16.702929][  T329] Tainted: [W]=WARN
[   16.703031][  T329] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.703201][  T329] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.703377][  T329] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.703873][  T329] RSP: 0018:ffa0000000bf71b0 EFLAGS: 00010286
[   16.704043][  T329] RAX: 00000000ffffffa6 RBX: ff1100000c67a740 RCX: 1ff400000017edfc
[   16.704250][  T329] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c67a7fc
[   16.704451][  T329] RBP: ff11000013992000 R08: 1fe22000018cf501 R09: ff1100000f715180
[   16.704666][  T329] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.704869][  T329] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   16.705071][  T329] FS:  00007f7b6a390840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   16.705306][  T329] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.705482][  T329] CR2: 0000000000445730 CR3: 000000001398e002 CR4: 0000000000771ef0
[   16.705689][  T329] PKRU: 55555554
[   16.705791][  T329] Call Trace:
[   16.705891][  T329]  <TASK>
[   16.705960][  T329]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.706097][  T329]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.706200][  T329]  ? ida_destroy (lib/idr.c:623)
[   16.706342][  T329]  __dev_notify_flags (net/core/dev.c:9787)
[   16.706483][  T329]  ? netif_change_name (net/core/dev.c:1495)
[   16.706619][  T329]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.706759][  T329]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   16.706928][  T329]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   16.707094][  T329]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   16.707239][  T329]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   16.707376][  T329]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   16.707516][  T329]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   16.707658][  T329]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   16.707796][  T329]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   16.707930][  T329]  ? __dev_get_by_name (net/core/dev.c:883)
[   16.708064][  T329]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   16.708211][  T329]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   16.708351][  T329]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.708492][  T329]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.708628][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.708766][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.708900][  T329]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.709041][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.709181][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.709316][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.709453][  T329]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.709592][  T329]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.709732][  T329]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.709866][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.710009][  T329]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.710142][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.710278][  T329]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.710413][  T329]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.710552][  T329]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.710695][  T329]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   16.710839][  T329]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   16.710975][  T329]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.711112][  T329]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.711247][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.711384][  T329]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.711524][  T329]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.711665][  T329]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.711809][  T329]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.711946][  T329]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.712080][  T329]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.712247][  T329]  ? move_addr_to_kernel (net/socket.c:258)
[   16.712386][  T329]  ___sys_sendmsg (net/socket.c:2752)
[   16.712522][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.712666][  T329]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.712810][  T329]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   16.712947][  T329]  __sys_sendmsg (net/socket.c:2784)
[   16.713083][  T329]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.713221][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.713356][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.713495][  T329]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.713636][  T329]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.713777][  T329]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.713918][  T329]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.714092][  T329] RIP: 0033:0x7f7b6a5ca08e
[   16.714234][  T329] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.714730][  T329] RSP: 002b:00007ffc44a06540 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.714935][  T329] RAX: ffffffffffffffda RBX: 00007ffc44a06cf8 RCX: 00007f7b6a5ca08e
[   16.715135][  T329] RDX: 0000000000000000 RSI: 00007ffc44a065f0 RDI: 0000000000000005
[   16.715342][  T329] RBP: 00007ffc44a06550 R08: 0000000000000000 R09: 0000000000000000
[   16.715550][  T329] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac7
[   16.715759][  T329] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc44a06cb0
| [   16.765479][  T331] ------------[ cut here ]------------
| [   16.765648][  T331] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/331
| [   16.765893][  T331] Modules linked in: ipvtap ipvlan
| [   16.766306][  T331] Tainted: [W]=WARN
[   16.766408][  T331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.766586][  T331] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.766771][  T331] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.767251][  T331] RSP: 0018:ffa0000000bd7a80 EFLAGS: 00010286
[   16.767421][  T331] RAX: 00000000ffffffa6 RBX: ff1100000d6dd8c0 RCX: 1ff400000017af16
[   16.767631][  T331] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d6dd97c
[   16.767840][  T331] RBP: ff1100000fe04000 R08: 1fe2200001adbb31 R09: ff1100000f710b80
[   16.768040][  T331] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.768242][  T331] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fe04000
[   16.768447][  T331] FS:  00007f4c351a1840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   16.768696][  T331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.768864][  T331] CR2: 00007f4c353a8430 CR3: 00000000096fe001 CR4: 0000000000771ef0
[   16.769066][  T331] PKRU: 55555554
[   16.769167][  T331] Call Trace:
[   16.769273][  T331]  <TASK>
[   16.769344][  T331]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.769491][  T331]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.769630][  T331]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.769736][  T331]  register_netdevice (net/core/dev.c:11488)
[   16.769874][  T331]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.770045][  T331]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.770180][  T331]  register_netdev (net/core/dev.c:11552)
[   16.770313][  T331]  loopback_net_init (drivers/net/loopback.c:218)
[   16.770451][  T331]  ops_init (net/core/net_namespace.c:137)
[   16.770558][  T331]  setup_net (net/core/net_namespace.c:446)
[   16.770667][  T331]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.770801][  T331]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.770936][  T331]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.771076][  T331]  copy_net_ns (net/core/net_namespace.c:579)
[   16.771217][  T331]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.771359][  T331]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.771502][  T331]  ksys_unshare (kernel/fork.c:3243)
[   16.771638][  T331]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.771866][  T331]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.772003][  T331]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.772141][  T331]  ? __ia32_sys_open (fs/open.c:1374)
[   16.772279][  T331]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.772412][  T331]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.772553][  T331]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.772751][  T331]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.772888][  T331]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.773022][  T331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.773192][  T331] RIP: 0033:0x7f4c35463bcb
[   16.773335][  T331] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.773897][  T331] RSP: 002b:00007ffd37d9af08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.774099][  T331] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4c35463bcb
[   16.774304][  T331] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.774512][  T331] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.774797][  T331] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd37d9d130
[   16.775000][  T331] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd37d9e87e
| [   16.779344][  T331] ------------[ cut here ]------------
| [   16.779503][  T331] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/331
| [   16.779906][  T331] Modules linked in: ipvtap ipvlan
| [   16.780315][  T331] Tainted: [W]=WARN
[   16.780415][  T331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.780589][  T331] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.780792][  T331] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.781266][  T331] RSP: 0018:ffa0000000bd7918 EFLAGS: 00010286
[   16.781434][  T331] RAX: 00000000ffffffa6 RBX: ff11000005f18040 RCX: 1ff400000017aee9
[   16.781648][  T331] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005f180fc
[   16.781852][  T331] RBP: ff11000012f39000 R08: 1fe2200000be3021 R09: ff1100000f710b80
[   16.782051][  T331] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.782251][  T331] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012f39000
[   16.782457][  T331] FS:  00007f4c351a1840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   16.782701][  T331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.782869][  T331] CR2: 00007f4c353a8430 CR3: 00000000096fe001 CR4: 0000000000771ef0
[   16.783070][  T331] PKRU: 55555554
[   16.783170][  T331] Call Trace:
[   16.783270][  T331]  <TASK>
[   16.783347][  T331]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.783486][  T331]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.783621][  T331]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.783730][  T331]  register_netdevice (net/core/dev.c:11488)
[   16.783864][  T331]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.784030][  T331]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.784165][  T331]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   16.784306][  T331]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   16.784441][  T331]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   16.784581][  T331]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   16.784721][  T331]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   16.784857][  T331]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   16.784993][  T331]  ops_init (net/core/net_namespace.c:137)
[   16.785095][  T331]  setup_net (net/core/net_namespace.c:446)
[   16.785204][  T331]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.785337][  T331]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.785471][  T331]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.785614][  T331]  copy_net_ns (net/core/net_namespace.c:579)
[   16.785757][  T331]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.785893][  T331]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.786033][  T331]  ksys_unshare (kernel/fork.c:3243)
[   16.786167][  T331]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.786302][  T331]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.786436][  T331]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.786576][  T331]  ? __ia32_sys_open (fs/open.c:1374)
[   16.786717][  T331]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.786850][  T331]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.786988][  T331]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.787120][  T331]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.787252][  T331]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.787385][  T331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.787555][  T331] RIP: 0033:0x7f4c35463bcb
[   16.787699][  T331] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.788176][  T331] RSP: 002b:00007ffd37d9af08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.788380][  T331] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4c35463bcb
[   16.788584][  T331] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.788793][  T331] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.788993][  T331] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd37d9d130
[   16.789193][  T331] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd37d9e87e
| [   16.793129][  T331] ------------[ cut here ]------------
| [   16.793275][  T331] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/331
| [   16.793515][  T331] Modules linked in: ipvtap ipvlan
| [   16.793937][  T331] Tainted: [W]=WARN
[   16.794039][  T331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.794209][  T331] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.794384][  T331] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.794879][  T331] RSP: 0018:ffa0000000bd78f8 EFLAGS: 00010286
[   16.795049][  T331] RAX: 00000000ffffffa6 RBX: ff1100000c318040 RCX: 1ff400000017aee5
[   16.795251][  T331] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3180fc
[   16.795451][  T331] RBP: ff11000013ac9000 R08: 1fe2200001863021 R09: ff1100000f710b80
[   16.795666][  T331] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.795865][  T331] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013ac9000
[   16.796069][  T331] FS:  00007f4c351a1840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   16.796306][  T331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.796487][  T331] CR2: 00007f4c353a8430 CR3: 00000000096fe001 CR4: 0000000000771ef0
[   16.796695][  T331] PKRU: 55555554
[   16.796796][  T331] Call Trace:
[   16.796897][  T331]  <TASK>
[   16.796968][  T331]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.797104][  T331]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.797238][  T331]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.797348][  T331]  register_netdevice (net/core/dev.c:11488)
[   16.797491][  T331]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.797665][  T331]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.797802][  T331]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   16.797940][  T331]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   16.798075][  T331]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   16.798217][  T331]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   16.798352][  T331]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   16.798491][  T331]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   16.798627][  T331]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   16.798771][  T331]  vti_init_net (net/ipv4/ip_vti.c:517)
[   16.798908][  T331]  ops_init (net/core/net_namespace.c:137)
[   16.799012][  T331]  setup_net (net/core/net_namespace.c:446)
[   16.799120][  T331]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.799254][  T331]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.799390][  T331]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.799530][  T331]  copy_net_ns (net/core/net_namespace.c:579)
[   16.799669][  T331]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.799807][  T331]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.799945][  T331]  ksys_unshare (kernel/fork.c:3243)
[   16.800085][  T331]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.800220][  T331]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.800355][  T331]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.800495][  T331]  ? __ia32_sys_open (fs/open.c:1374)
[   16.800632][  T331]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.800772][  T331]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.800914][  T331]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.801047][  T331]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.801182][  T331]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.801316][  T331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.801486][  T331] RIP: 0033:0x7f4c35463bcb
[   16.801628][  T331] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.802117][  T331] RSP: 002b:00007ffd37d9af08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.802320][  T331] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4c35463bcb
[   16.802523][  T331] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.802735][  T331] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.802940][  T331] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd37d9d130
[   16.803142][  T331] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd37d9e87e
| [   16.815024][  T331] ------------[ cut here ]------------
| [   16.815160][  T331] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/331
| [   16.815381][  T331] Modules linked in: ipvtap ipvlan
| [   16.815790][  T331] Tainted: [W]=WARN
[   16.815890][  T331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.816054][  T331] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.816224][  T331] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.816696][  T331] RSP: 0018:ffa0000000bd7a78 EFLAGS: 00010286
[   16.816860][  T331] RAX: 00000000ffffffa6 RBX: ff1100000d6dc900 RCX: 1ff400000017af15
[   16.817052][  T331] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d6dc9bc
[   16.817245][  T331] RBP: ff11000013b61000 R08: 1fe2200001adb939 R09: ff1100000f710b80
[   16.817440][  T331] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.817641][  T331] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013b61000
[   16.817841][  T331] FS:  00007f4c351a1840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   16.818068][  T331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.818230][  T331] CR2: 00007f4c353a8430 CR3: 00000000096fe001 CR4: 0000000000771ef0
[   16.818425][  T331] PKRU: 55555554
[   16.818527][  T331] Call Trace:
[   16.818623][  T331]  <TASK>
[   16.818696][  T331]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.818825][  T331]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.818955][  T331]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.819055][  T331]  register_netdevice (net/core/dev.c:11488)
[   16.819189][  T331]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.819350][  T331]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.819487][  T331]  register_netdev (net/core/dev.c:11552)
[   16.819616][  T331]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   16.819753][  T331]  ops_init (net/core/net_namespace.c:137)
[   16.819852][  T331]  setup_net (net/core/net_namespace.c:446)
[   16.819950][  T331]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.820078][  T331]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.820207][  T331]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.820341][  T331]  copy_net_ns (net/core/net_namespace.c:579)
[   16.820476][  T331]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.820609][  T331]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.820744][  T331]  ksys_unshare (kernel/fork.c:3243)
[   16.820872][  T331]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.821001][  T331]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.821130][  T331]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.821261][  T331]  ? __ia32_sys_open (fs/open.c:1374)
[   16.821392][  T331]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.821526][  T331]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.821661][  T331]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.821791][  T331]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.821919][  T331]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.822047][  T331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.822206][  T331] RIP: 0033:0x7f4c35463bcb
[   16.822342][  T331] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.822817][  T331] RSP: 002b:00007ffd37d9af08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.823011][  T331] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4c35463bcb
[   16.823206][  T331] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.823400][  T331] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.823598][  T331] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd37d9d130
[   16.823793][  T331] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd37d9e87e
| [   16.827999][  T331] ------------[ cut here ]------------
| [   16.828135][  T331] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/331
| [   16.828362][  T331] Modules linked in: ipvtap ipvlan
| [   16.828769][  T331] Tainted: [W]=WARN
[   16.828867][  T331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.829031][  T331] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.829201][  T331] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.829674][  T331] RSP: 0018:ffa0000000bd7a68 EFLAGS: 00010286
[   16.829838][  T331] RAX: 00000000ffffffa6 RBX: ff1100000c882580 RCX: 1ff400000017af13
[   16.830032][  T331] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c88263c
[   16.830229][  T331] RBP: ff11000013b81000 R08: 1fe22000019104c9 R09: ff1100000f710b80
[   16.830423][  T331] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.830619][  T331] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013b81000
[   16.830820][  T331] FS:  00007f4c351a1840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   16.831050][  T331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.831219][  T331] CR2: 00007f4c353a8430 CR3: 00000000096fe001 CR4: 0000000000771ef0
[   16.831424][  T331] PKRU: 55555554
[   16.831530][  T331] Call Trace:
[   16.831632][  T331]  <TASK>
[   16.831704][  T331]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.831841][  T331]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.831981][  T331]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.832087][  T331]  register_netdevice (net/core/dev.c:11488)
[   16.832228][  T331]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.832401][  T331]  register_netdev (net/core/dev.c:11552)
[   16.832539][  T331]  sit_init_net (net/ipv6/sit.c:1860)
[   16.832684][  T331]  ops_init (net/core/net_namespace.c:137)
[   16.832784][  T331]  setup_net (net/core/net_namespace.c:446)
[   16.832886][  T331]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.833022][  T331]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.833157][  T331]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.833292][  T331]  copy_net_ns (net/core/net_namespace.c:579)
[   16.833429][  T331]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.833575][  T331]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.833719][  T331]  ksys_unshare (kernel/fork.c:3243)
[   16.833857][  T331]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.833994][  T331]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.834125][  T331]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.834262][  T331]  ? __ia32_sys_open (fs/open.c:1374)
[   16.834396][  T331]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.834538][  T331]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.834675][  T331]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.834809][  T331]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.834944][  T331]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.835077][  T331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.835247][  T331] RIP: 0033:0x7f4c35463bcb
[   16.835390][  T331] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.835880][  T331] RSP: 002b:00007ffd37d9af08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.836082][  T331] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4c35463bcb
[   16.836281][  T331] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.836485][  T331] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.836692][  T331] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd37d9d130
[   16.836891][  T331] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd37d9e87e
| [   16.842586][  T331] ------------[ cut here ]------------
| [   16.842734][  T331] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/331
| [   16.842965][  T331] Modules linked in: ipvtap ipvlan
| [   16.843378][  T331] Tainted: [W]=WARN
[   16.843481][  T331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.843649][  T331] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.843828][  T331] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.844290][  T331] RSP: 0018:ffa0000000bd7a78 EFLAGS: 00010286
[   16.844457][  T331] RAX: 00000000ffffffa6 RBX: ff11000013b30900 RCX: 1ff400000017af15
[   16.844665][  T331] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013b309bc
[   16.844861][  T331] RBP: ff11000013bac000 R08: 1fe2200002766139 R09: ff1100000f710b80
[   16.845057][  T331] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.845251][  T331] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013bac000
[   16.845448][  T331] FS:  00007f4c351a1840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   16.845689][  T331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.845851][  T331] CR2: 00007f4c353a8430 CR3: 00000000096fe001 CR4: 0000000000771ef0
[   16.846048][  T331] PKRU: 55555554
[   16.846148][  T331] Call Trace:
[   16.846246][  T331]  <TASK>
[   16.846314][  T331]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.846446][  T331]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.846586][  T331]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.846693][  T331]  register_netdevice (net/core/dev.c:11488)
[   16.846824][  T331]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.846988][  T331]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.847123][  T331]  register_netdev (net/core/dev.c:11552)
[   16.847254][  T331]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   16.847385][  T331]  ops_init (net/core/net_namespace.c:137)
[   16.847490][  T331]  setup_net (net/core/net_namespace.c:446)
[   16.847589][  T331]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.847725][  T331]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.847855][  T331]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.847990][  T331]  copy_net_ns (net/core/net_namespace.c:579)
[   16.848122][  T331]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.848257][  T331]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.848389][  T331]  ksys_unshare (kernel/fork.c:3243)
[   16.848522][  T331]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.848658][  T331]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.848789][  T331]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.848924][  T331]  ? __ia32_sys_open (fs/open.c:1374)
[   16.849057][  T331]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.849187][  T331]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.849319][  T331]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.849449][  T331]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.849583][  T331]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.849775][  T331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.849937][  T331] RIP: 0033:0x7f4c35463bcb
[   16.850077][  T331] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.850544][  T331] RSP: 002b:00007ffd37d9af08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.850804][  T331] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4c35463bcb
[   16.851004][  T331] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.851199][  T331] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.851394][  T331] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd37d9d130
[   16.851594][  T331] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd37d9e87e
| [   16.890091][  T332] ------------[ cut here ]------------
| [   16.890287][  T332] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/332
| [   16.890575][  T332] Modules linked in: ipvtap ipvlan
| [   16.891087][  T332] Tainted: [W]=WARN
[   16.891236][  T332] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.891451][  T332] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.891692][  T332] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.892215][  T332] RSP: 0018:ffa0000000bf7020 EFLAGS: 00010286
[   16.892429][  T332] RAX: 00000000ffffffa6 RBX: ff1100000569a040 RCX: 1ff400000017edca
[   16.892696][  T332] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000569a0fc
[   16.892943][  T332] RBP: ff1100000fe04000 R08: 1fe2200000ad3421 R09: ff1100000f69d158
[   16.893195][  T332] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   16.893441][  T332] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   16.893707][  T332] FS:  00007f35df440840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   16.893984][  T332] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.894200][  T332] CR2: 00007f35df7101a0 CR3: 0000000001f6e004 CR4: 0000000000771ef0
[   16.894452][  T332] PKRU: 55555554
[   16.894609][  T332] Call Trace:
[   16.894768][  T332]  <TASK>
[   16.894885][  T332]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.895071][  T332]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.895221][  T332]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   16.895402][  T332]  __dev_notify_flags (net/core/dev.c:9787)
[   16.895591][  T332]  ? netif_change_name (net/core/dev.c:1495)
[   16.895789][  T332]  ? __dev_change_flags (net/core/dev.c:9752)
[   16.895972][  T332]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   16.896154][  T332]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.896339][  T332]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   16.896533][  T332]  netif_change_flags (net/core/dev.c:9820)
[   16.896731][  T332]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   16.896920][  T332]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   16.897104][  T332]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   16.897287][  T332]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   16.897513][  T332]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.897705][  T332]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.897886][  T332]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.898068][  T332]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.898255][  T332]  ? __kernel_text_address (kernel/extable.c:79)
[   16.898439][  T332]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.898626][  T332]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.898821][  T332]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.899003][  T332]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.899183][  T332]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.899365][  T332]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.899555][  T332]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.899750][  T332]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   16.899931][  T332]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   16.900114][  T332]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   16.900298][  T332]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.900489][  T332]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   16.900686][  T332]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   16.900871][  T332]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.901057][  T332]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.901238][  T332]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.901421][  T332]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.901611][  T332]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.901806][  T332]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.901990][  T332]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.902170][  T332]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.902357][  T332]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.902549][  T332]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.902746][  T332]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.902931][  T332]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.903114][  T332]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.903295][  T332]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.903484][  T332]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.903682][  T332]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.903865][  T332]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.904050][  T332]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.904232][  T332]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.904414][  T332]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.904609][  T332]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   16.904803][  T332]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   16.904988][  T332]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.905173][  T332]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.905360][  T332]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.905553][  T332]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.905753][  T332]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.905940][  T332]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.906126][  T332]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.906311][  T332]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.906500][  T332]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.906730][  T332]  ? move_addr_to_kernel (net/socket.c:258)
[   16.906914][  T332]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.907095][  T332]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.907279][  T332]  ___sys_sendmsg (net/socket.c:2752)
[   16.907461][  T332]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   16.907701][  T332]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.907898][  T332]  __sys_sendmsg (net/socket.c:2784)
[   16.908087][  T332]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.908268][  T332]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   16.908492][  T332]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   16.908688][  T332]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.908871][  T332]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.909054][  T332]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.909236][  T332]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.909418][  T332]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.909643][  T332] RIP: 0033:0x7f35df67a08e
[   16.909843][  T332] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.910360][  T332] RSP: 002b:00007ffe4ce279e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.910621][  T332] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f35df67a08e
[   16.910881][  T332] RDX: 0000000000000000 RSI: 00007ffe4ce27a90 RDI: 0000000000000005
[   16.911128][  T332] RBP: 00007ffe4ce279f0 R08: 0000000000000000 R09: 0000000000000000
[   16.911374][  T332] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac8
[   16.911632][  T332] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe4ce28160
| [   17.034217][  T335] ------------[ cut here ]------------
| [   17.034426][  T335] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/335
| [   17.034745][  T335] Modules linked in: ipvtap ipvlan
| [   17.035272][  T335] Tainted: [W]=WARN
[   17.035425][  T335] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.035674][  T335] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.035915][  T335] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.036464][  T335] RSP: 0018:ffa0000000c070b0 EFLAGS: 00010286
[   17.036712][  T335] RAX: 00000000ffffffa6 RBX: ff1100001078cac0 RCX: 1ff4000000180ddc
[   17.036971][  T335] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001078cb7c
[   17.037234][  T335] RBP: ff11000007edc000 R08: 1fe22000020f1971 R09: ff1100000faa5180
[   17.037501][  T335] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   17.037842][  T335] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   17.038165][  T335] FS:  00007fb82ca27840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   17.038531][  T335] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.038839][  T335] CR2: 0000000000445730 CR3: 0000000004e5f005 CR4: 0000000000771ef0
[   17.039162][  T335] PKRU: 55555554
[   17.039400][  T335] Call Trace:
[   17.039644][  T335]  <TASK>
[   17.039861][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.040162][  T335]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   17.040420][  T335]  notifier_call_chain (kernel/notifier.c:85)
[   17.040697][  T335]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   17.040956][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.041146][  T335]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   17.041335][  T335]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   17.041501][  T335]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   17.041744][  T335]  ? ida_destroy (lib/idr.c:623)
[   17.041937][  T335]  netdev_upper_dev_link (net/core/dev.c:8972)
[   17.042128][  T335]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   17.042321][  T335] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   17.042524][  T335]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   17.042728][  T335]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   17.042920][  T335] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   17.043112][  T335]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   17.043305][  T335]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   17.043504][  T335]  ? __dev_get_by_name (net/core/dev.c:883)
[   17.043708][  T335]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   17.043906][  T335]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   17.044103][  T335]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.044296][  T335]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.044493][  T335]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.044699][  T335]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.044890][  T335]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.045082][  T335]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.045276][  T335]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.045468][  T335]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.045683][  T335]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.045877][  T335]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.046069][  T335]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.046260][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.046453][  T335]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.046664][  T335]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.046858][  T335]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.047047][  T335]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.047238][  T335]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.047432][  T335]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.047629][  T335]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.047839][  T335]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.048031][  T335]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.048221][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.048413][  T335]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.048613][  T335]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.048814][  T335]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.049007][  T335]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.049198][  T335]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.049391][  T335]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.049624][  T335]  ? move_addr_to_kernel (net/socket.c:258)
[   17.049832][  T335]  ___sys_sendmsg (net/socket.c:2752)
[   17.050024][  T335]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.050214][  T335]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.050412][  T335]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   17.050613][  T335]  __sys_sendmsg (net/socket.c:2784)
[   17.050820][  T335]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.051013][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.051205][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.051396][  T335]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.051593][  T335]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.051796][  T335]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.051988][  T335]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.052210][  T335] RIP: 0033:0x7fb82cc6108e
[   17.052410][  T335] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.052979][  T335] RSP: 002b:00007fff135f7680 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.053240][  T335] RAX: ffffffffffffffda RBX: 00007fff135f7e38 RCX: 00007fb82cc6108e
[   17.053508][  T335] RDX: 0000000000000000 RSI: 00007fff135f7730 RDI: 0000000000000005
[   17.053781][  T335] RBP: 00007fff135f7690 R08: 0000000000000000 R09: 0000000000000000
[   17.054039][  T335] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac8
[   17.054297][  T335] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff135f7df0
| [   17.056386][  T335] ------------[ cut here ]------------
| [   17.056536][  T335] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/335
| [   17.056780][  T335] Modules linked in: ipvtap ipvlan
| [   17.057191][  T335] Tainted: [W]=WARN
[   17.057294][  T335] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.057463][  T335] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.057645][  T335] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.058140][  T335] RSP: 0018:ffa0000000c071b0 EFLAGS: 00010286
[   17.058310][  T335] RAX: 00000000ffffffa6 RBX: ff1100001078c900 RCX: 1ff4000000180dfc
[   17.058515][  T335] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001078c9bc
[   17.058723][  T335] RBP: ff11000012dba000 R08: 1fe22000020f1939 R09: ff1100000faa5180
[   17.058924][  T335] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   17.059124][  T335] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   17.059327][  T335] FS:  00007fb82ca27840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   17.059572][  T335] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.059748][  T335] CR2: 00007fff94783c0c CR3: 0000000004e5f005 CR4: 0000000000771ef0
[   17.059950][  T335] PKRU: 55555554
[   17.060053][  T335] Call Trace:
[   17.060155][  T335]  <TASK>
[   17.060225][  T335]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.060362][  T335]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.060465][  T335]  ? ida_destroy (lib/idr.c:623)
[   17.060605][  T335]  __dev_notify_flags (net/core/dev.c:9787)
[   17.060748][  T335]  ? netif_change_name (net/core/dev.c:1495)
[   17.060884][  T335]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.061019][  T335]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   17.061188][  T335]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   17.061357][  T335]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   17.061500][  T335]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   17.061638][  T335]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   17.061779][  T335]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   17.061916][  T335]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   17.062053][  T335]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   17.062187][  T335]  ? __dev_get_by_name (net/core/dev.c:883)
[   17.062322][  T335]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   17.062465][  T335]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   17.062611][  T335]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.062754][  T335]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.062889][  T335]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.063025][  T335]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.063159][  T335]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.063294][  T335]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.063433][  T335]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.063576][  T335]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.063718][  T335]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.063853][  T335]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.063989][  T335]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.064124][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.064263][  T335]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.064398][  T335]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.064540][  T335]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.064681][  T335]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.064817][  T335]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.064956][  T335]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.065092][  T335]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.065229][  T335]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.065365][  T335]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.065504][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.065642][  T335]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.065784][  T335]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.065921][  T335]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.066058][  T335]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.066194][  T335]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.066328][  T335]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.066500][  T335]  ? move_addr_to_kernel (net/socket.c:258)
[   17.066642][  T335]  ___sys_sendmsg (net/socket.c:2752)
[   17.066782][  T335]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.066918][  T335]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.067062][  T335]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   17.067199][  T335]  __sys_sendmsg (net/socket.c:2784)
[   17.067335][  T335]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.067478][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.067615][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.067758][  T335]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.067892][  T335]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.068026][  T335]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.068161][  T335]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.068328][  T335] RIP: 0033:0x7fb82cc6108e
[   17.068470][  T335] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.068961][  T335] RSP: 002b:00007fff135f7680 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.069165][  T335] RAX: ffffffffffffffda RBX: 00007fff135f7e38 RCX: 00007fb82cc6108e
[   17.069366][  T335] RDX: 0000000000000000 RSI: 00007fff135f7730 RDI: 0000000000000005
[   17.069572][  T335] RBP: 00007fff135f7690 R08: 0000000000000000 R09: 0000000000000000
[   17.069778][  T335] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac8
[   17.069979][  T335] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff135f7df0
| [   17.132085][  T337] ------------[ cut here ]------------
| [   17.132257][  T337] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/337
| [   17.132497][  T337] Modules linked in: ipvtap ipvlan
| [   17.132916][  T337] Tainted: [W]=WARN
[   17.133019][  T337] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.133187][  T337] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.133362][  T337] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.133852][  T337] RSP: 0018:ffa0000000c17a80 EFLAGS: 00010286
[   17.134024][  T337] RAX: 00000000ffffffa6 RBX: ff1100000c8831c0 RCX: 1ff4000000182f16
[   17.134225][  T337] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c88327c
[   17.134424][  T337] RBP: ff1100001301c000 R08: 1fe2200001910651 R09: ff1100000faa0b80
[   17.134627][  T337] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   17.134829][  T337] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001301c000
[   17.135035][  T337] FS:  00007fdf0abe0840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   17.135274][  T337] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.135445][  T337] CR2: 00007fdf0ade7430 CR3: 0000000004b05003 CR4: 0000000000771ef0
[   17.135657][  T337] PKRU: 55555554
[   17.135758][  T337] Call Trace:
[   17.135859][  T337]  <TASK>
[   17.135929][  T337]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.136065][  T337]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.136201][  T337]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.136303][  T337]  register_netdevice (net/core/dev.c:11488)
[   17.136441][  T337]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.136616][  T337]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   17.136761][  T337]  register_netdev (net/core/dev.c:11552)
[   17.136897][  T337]  loopback_net_init (drivers/net/loopback.c:218)
[   17.137033][  T337]  ops_init (net/core/net_namespace.c:137)
[   17.137137][  T337]  setup_net (net/core/net_namespace.c:446)
[   17.137239][  T337]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.137370][  T337]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.137510][  T337]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.137648][  T337]  copy_net_ns (net/core/net_namespace.c:579)
[   17.137791][  T337]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.137929][  T337]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.138064][  T337]  ksys_unshare (kernel/fork.c:3243)
[   17.138198][  T337]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.138333][  T337]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.138466][  T337]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.138607][  T337]  ? __ia32_sys_open (fs/open.c:1374)
[   17.139189][  T337]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.139328][  T337]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.139461][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.139600][  T337]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.139741][  T337]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.139875][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.140042][  T337] RIP: 0033:0x7fdf0aea2bcb
[   17.140184][  T337] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.140671][  T337] RSP: 002b:00007ffec23e5b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.140872][  T337] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdf0aea2bcb
[   17.141072][  T337] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.141271][  T337] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.141469][  T337] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec23e7dc0
[   17.141676][  T337] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffec23e887e
| [   17.145461][  T337] ------------[ cut here ]------------
| [   17.145609][  T337] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/337
| [   17.145848][  T337] Modules linked in: ipvtap ipvlan
| [   17.146255][  T337] Tainted: [W]=WARN
[   17.146357][  T337] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.146529][  T337] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.146707][  T337] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.147180][  T337] RSP: 0018:ffa0000000c17918 EFLAGS: 00010286
[   17.147347][  T337] RAX: 00000000ffffffa6 RBX: ff1100001078ce40 RCX: 1ff4000000182ee9
[   17.147552][  T337] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001078cefc
[   17.147758][  T337] RBP: ff1100000f2d1000 R08: 1fe22000020f19e1 R09: ff1100000faa0b80
[   17.147960][  T337] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   17.148159][  T337] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f2d1000
[   17.148361][  T337] FS:  00007fdf0abe0840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   17.148602][  T337] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.148776][  T337] CR2: 00007fdf0ade7430 CR3: 0000000004b05003 CR4: 0000000000771ef0
[   17.148976][  T337] PKRU: 55555554
[   17.149076][  T337] Call Trace:
[   17.149176][  T337]  <TASK>
[   17.149246][  T337]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.149380][  T337]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.149522][  T337]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.149625][  T337]  register_netdevice (net/core/dev.c:11488)
[   17.149765][  T337]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.149931][  T337]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   17.150068][  T337]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   17.150201][  T337]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   17.150334][  T337]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   17.150470][  T337]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   17.150611][  T337]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   17.150752][  T337]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   17.150888][  T337]  ops_init (net/core/net_namespace.c:137)
[   17.150992][  T337]  setup_net (net/core/net_namespace.c:446)
[   17.151093][  T337]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.151226][  T337]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.151361][  T337]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.151504][  T337]  copy_net_ns (net/core/net_namespace.c:579)
[   17.151640][  T337]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.151783][  T337]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.151918][  T337]  ksys_unshare (kernel/fork.c:3243)
[   17.152052][  T337]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.152186][  T337]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.152319][  T337]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.152457][  T337]  ? __ia32_sys_open (fs/open.c:1374)
[   17.152596][  T337]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.152736][  T337]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.152870][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.153003][  T337]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.153137][  T337]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.153273][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.153439][  T337] RIP: 0033:0x7fdf0aea2bcb
[   17.153584][  T337] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.154063][  T337] RSP: 002b:00007ffec23e5b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.154266][  T337] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdf0aea2bcb
[   17.154468][  T337] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.154677][  T337] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.154877][  T337] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec23e7dc0
[   17.155077][  T337] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffec23e887e
| [   17.159333][  T337] ------------[ cut here ]------------
| [   17.159485][  T337] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/337
| [   17.159788][  T337] Modules linked in: ipvtap ipvlan
| [   17.160199][  T337] Tainted: [W]=WARN
[   17.160302][  T337] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.160471][  T337] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.160655][  T337] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.161135][  T337] RSP: 0018:ffa0000000c178f8 EFLAGS: 00010286
[   17.161304][  T337] RAX: 00000000ffffffa6 RBX: ff1100000df8ec80 RCX: 1ff4000000182ee5
[   17.161512][  T337] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df8ed3c
[   17.161721][  T337] RBP: ff1100001309c000 R08: 1fe2200001bf1da9 R09: ff1100000faa0b80
[   17.161924][  T337] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   17.162126][  T337] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001309c000
[   17.162331][  T337] FS:  00007fdf0abe0840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   17.162577][  T337] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.162753][  T337] CR2: 00007fdf0ade7430 CR3: 0000000004b05003 CR4: 0000000000771ef0
[   17.162957][  T337] PKRU: 55555554
[   17.163059][  T337] Call Trace:
[   17.163160][  T337]  <TASK>
[   17.163230][  T337]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.163367][  T337]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.163513][  T337]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.163616][  T337]  register_netdevice (net/core/dev.c:11488)
[   17.163761][  T337]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.163931][  T337]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   17.164069][  T337]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   17.164206][  T337]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   17.164345][  T337]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   17.164489][  T337]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   17.164625][  T337]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   17.164768][  T337]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   17.164905][  T337]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   17.165043][  T337]  vti_init_net (net/ipv4/ip_vti.c:517)
[   17.165179][  T337]  ops_init (net/core/net_namespace.c:137)
[   17.165284][  T337]  setup_net (net/core/net_namespace.c:446)
[   17.165388][  T337]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.165529][  T337]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.165669][  T337]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.165808][  T337]  copy_net_ns (net/core/net_namespace.c:579)
[   17.165946][  T337]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.166084][  T337]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.166222][  T337]  ksys_unshare (kernel/fork.c:3243)
[   17.166361][  T337]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.166502][  T337]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.166638][  T337]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.166781][  T337]  ? __ia32_sys_open (fs/open.c:1374)
[   17.166920][  T337]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.167056][  T337]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.167192][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.167328][  T337]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.167464][  T337]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.167608][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.167784][  T337] RIP: 0033:0x7fdf0aea2bcb
[   17.167927][  T337] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.168409][  T337] RSP: 002b:00007ffec23e5b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.168617][  T337] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdf0aea2bcb
[   17.168824][  T337] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.169029][  T337] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.169232][  T337] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec23e7dc0
[   17.169436][  T337] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffec23e887e
| [   17.175328][  T337] ------------[ cut here ]------------
| [   17.175480][  T337] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/337
| [   17.175722][  T337] Modules linked in: ipvtap ipvlan
| [   17.176131][  T337] Tainted: [W]=WARN
[   17.176236][  T337] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.176404][  T337] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.176588][  T337] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.177070][  T337] RSP: 0018:ffa0000000c17a78 EFLAGS: 00010286
[   17.177239][  T337] RAX: 00000000ffffffa6 RBX: ff1100000569ae40 RCX: 1ff4000000182f15
[   17.177438][  T337] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000569aefc
[   17.177642][  T337] RBP: ff110000130b4000 R08: 1fe2200000ad35e1 R09: ff1100000faa0b80
[   17.177847][  T337] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   17.178050][  T337] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000130b4000
[   17.178250][  T337] FS:  00007fdf0abe0840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   17.178489][  T337] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.178662][  T337] CR2: 00007fdf0ade7430 CR3: 0000000004b05003 CR4: 0000000000771ef0
[   17.178866][  T337] PKRU: 55555554
[   17.178966][  T337] Call Trace:
[   17.179066][  T337]  <TASK>
[   17.179135][  T337]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.179269][  T337]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.179404][  T337]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.179510][  T337]  register_netdevice (net/core/dev.c:11488)
[   17.179645][  T337]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.179820][  T337]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.179957][  T337]  register_netdev (net/core/dev.c:11552)
[   17.180091][  T337]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   17.180228][  T337]  ops_init (net/core/net_namespace.c:137)
[   17.180333][  T337]  setup_net (net/core/net_namespace.c:446)
[   17.180436][  T337]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.180574][  T337]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.180769][  T337]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.180907][  T337]  copy_net_ns (net/core/net_namespace.c:579)
[   17.181042][  T337]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.181178][  T337]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.181313][  T337]  ksys_unshare (kernel/fork.c:3243)
[   17.181447][  T337]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.181586][  T337]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.181781][  T337]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.181916][  T337]  ? __ia32_sys_open (fs/open.c:1374)
[   17.182053][  T337]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.182186][  T337]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.182320][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.182454][  T337]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.182594][  T337]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.182783][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.182950][  T337] RIP: 0033:0x7fdf0aea2bcb
[   17.183092][  T337] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.183577][  T337] RSP: 002b:00007ffec23e5b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.183836][  T337] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdf0aea2bcb
[   17.184035][  T337] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.184235][  T337] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.184434][  T337] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec23e7dc0
[   17.184637][  T337] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffec23e887e
| [   17.189594][  T337] ------------[ cut here ]------------
| [   17.189756][  T337] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/337
| [   17.189996][  T337] Modules linked in: ipvtap ipvlan
| [   17.190404][  T337] Tainted: [W]=WARN
[   17.190511][  T337] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.190689][  T337] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.190872][  T337] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.191348][  T337] RSP: 0018:ffa0000000c17a68 EFLAGS: 00010286
[   17.191520][  T337] RAX: 00000000ffffffa6 RBX: ff11000005704580 RCX: 1ff4000000182f13
[   17.191727][  T337] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000570463c
[   17.191928][  T337] RBP: ff11000013c9c000 R08: 1fe2200000ae08c9 R09: ff1100000faa0b80
[   17.192130][  T337] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   17.192331][  T337] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013c9c000
[   17.192539][  T337] FS:  00007fdf0abe0840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   17.192795][  T337] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.192964][  T337] CR2: 00007f4c3542c2a0 CR3: 0000000004b05004 CR4: 0000000000771ef0
[   17.193174][  T337] PKRU: 55555554
[   17.193284][  T337] Call Trace:
[   17.193384][  T337]  <TASK>
[   17.193454][  T337]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.193595][  T337]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.193732][  T337]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.193835][  T337]  register_netdevice (net/core/dev.c:11488)
[   17.193970][  T337]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.194140][  T337]  register_netdev (net/core/dev.c:11552)
[   17.194281][  T337]  sit_init_net (net/ipv6/sit.c:1860)
[   17.194419][  T337]  ops_init (net/core/net_namespace.c:137)
[   17.194528][  T337]  setup_net (net/core/net_namespace.c:446)
[   17.194630][  T337]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.194767][  T337]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.194901][  T337]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.195037][  T337]  copy_net_ns (net/core/net_namespace.c:579)
[   17.195177][  T337]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.195314][  T337]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.195450][  T337]  ksys_unshare (kernel/fork.c:3243)
[   17.195588][  T337]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.195728][  T337]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.195861][  T337]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.196002][  T337]  ? __ia32_sys_open (fs/open.c:1374)
[   17.196136][  T337]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.196270][  T337]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.196404][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.196543][  T337]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.196682][  T337]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.196815][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.196986][  T337] RIP: 0033:0x7fdf0aea2bcb
[   17.197126][  T337] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.197604][  T337] RSP: 002b:00007ffec23e5b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.197819][  T337] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdf0aea2bcb
[   17.198017][  T337] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.198215][  T337] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.198418][  T337] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec23e7dc0
[   17.198627][  T337] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffec23e887e
| [   17.203421][  T337] ------------[ cut here ]------------
| [   17.203571][  T337] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/337
| [   17.203815][  T337] Modules linked in: ipvtap ipvlan
| [   17.204221][  T337] Tainted: [W]=WARN
[   17.204322][  T337] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.204492][  T337] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.204679][  T337] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.205151][  T337] RSP: 0018:ffa0000000c17a78 EFLAGS: 00010286
[   17.205320][  T337] RAX: 00000000ffffffa6 RBX: ff1100000d6dc580 RCX: 1ff4000000182f15
[   17.205527][  T337] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d6dc63c
[   17.206235][  T337] RBP: ff11000013cb1000 R08: 1fe2200001adb8c9 R09: ff1100000faa0b80
[   17.206436][  T337] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   17.206642][  T337] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013cb1000
[   17.206897][  T337] FS:  00007fdf0abe0840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   17.207135][  T337] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.207301][  T337] CR2: 00007f4c3542c2a0 CR3: 0000000004b05004 CR4: 0000000000771ef0
[   17.207508][  T337] PKRU: 55555554
[   17.207607][  T337] Call Trace:
[   17.207761][  T337]  <TASK>
[   17.207830][  T337]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.207969][  T337]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.208102][  T337]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.208204][  T337]  register_netdevice (net/core/dev.c:11488)
[   17.208393][  T337]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.208567][  T337]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.208756][  T337]  register_netdev (net/core/dev.c:11552)
[   17.208896][  T337]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   17.209031][  T337]  ops_init (net/core/net_namespace.c:137)
[   17.209133][  T337]  setup_net (net/core/net_namespace.c:446)
[   17.209234][  T337]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.209366][  T337]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.209508][  T337]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.209643][  T337]  copy_net_ns (net/core/net_namespace.c:579)
[   17.209844][  T337]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.209979][  T337]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.210115][  T337]  ksys_unshare (kernel/fork.c:3243)
[   17.210248][  T337]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.210381][  T337]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.210521][  T337]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.210710][  T337]  ? __ia32_sys_open (fs/open.c:1374)
[   17.210852][  T337]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.210984][  T337]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.211117][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.211251][  T337]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.211383][  T337]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.211522][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.211748][  T337] RIP: 0033:0x7fdf0aea2bcb
[   17.211887][  T337] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.212361][  T337] RSP: 002b:00007ffec23e5b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.212567][  T337] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdf0aea2bcb
[   17.212828][  T337] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.213026][  T337] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.213224][  T337] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec23e7dc0
[   17.213421][  T337] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffec23e887e
| [   17.246881][  T338] ------------[ cut here ]------------
| [   17.247047][  T338] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/338
| [   17.247284][  T338] Modules linked in: ipvtap ipvlan
| [   17.248251][  T338] Tainted: [W]=WARN
[   17.248360][  T338] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.248537][  T338] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.248730][  T338] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.249204][  T338] RSP: 0018:ffa0000000c27020 EFLAGS: 00010286
[   17.249373][  T338] RAX: 00000000ffffffa6 RBX: ff1100000569b700 RCX: 1ff4000000184dca
[   17.249578][  T338] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000569b7bc
[   17.249784][  T338] RBP: ff1100001301c000 R08: 1fe2200000ad36f9 R09: ff11000012bd5158
[   17.249985][  T338] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   17.250185][  T338] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   17.250386][  T338] FS:  00007f5fb67d9840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   17.250627][  T338] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.250801][  T338] CR2: 000000000fce6988 CR3: 000000001392b005 CR4: 0000000000771ef0
[   17.251009][  T338] PKRU: 55555554
[   17.251109][  T338] Call Trace:
[   17.251208][  T338]  <TASK>
[   17.251277][  T338]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.251412][  T338]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.251518][  T338]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   17.251656][  T338]  __dev_notify_flags (net/core/dev.c:9787)
[   17.251792][  T338]  ? netif_change_name (net/core/dev.c:1495)
[   17.251926][  T338]  ? __dev_change_flags (net/core/dev.c:9752)
[   17.252060][  T338]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   17.252194][  T338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.252327][  T338]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   17.252483][  T338]  netif_change_flags (net/core/dev.c:9820)
[   17.252617][  T338]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   17.252760][  T338]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   17.252897][  T338]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   17.253033][  T338]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   17.253201][  T338]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.253335][  T338]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.253467][  T338]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.253610][  T338]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.253752][  T338]  ? __kernel_text_address (kernel/extable.c:79)
[   17.253886][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.254022][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.254155][  T338]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   17.254289][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.254424][  T338]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.254564][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.254703][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.254838][  T338]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   17.254974][  T338]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   17.255109][  T338]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   17.255244][  T338]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   17.255381][  T338]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   17.255523][  T338]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   17.255667][  T338]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.255806][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.255940][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.256077][  T338]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.256211][  T338]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.256345][  T338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.256486][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.256620][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.256765][  T338]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.256901][  T338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.257037][  T338]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.257172][  T338]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.257307][  T338]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.257442][  T338]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.257583][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.257724][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.257859][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.257995][  T338]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.258131][  T338]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.258266][  T338]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.258405][  T338]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.258546][  T338]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.258689][  T338]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.258825][  T338]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.258960][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.259096][  T338]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.259232][  T338]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.259369][  T338]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.259513][  T338]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.259648][  T338]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.259789][  T338]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.259957][  T338]  ? move_addr_to_kernel (net/socket.c:258)
[   17.260094][  T338]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.260229][  T338]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.260364][  T338]  ___sys_sendmsg (net/socket.c:2752)
[   17.260502][  T338]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   17.260675][  T338]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.260823][  T338]  __sys_sendmsg (net/socket.c:2784)
[   17.260959][  T338]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.261094][  T338]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   17.261265][  T338]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   17.261403][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.261545][  T338]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.261686][  T338]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.261820][  T338]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.261956][  T338]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.262123][  T338] RIP: 0033:0x7f5fb6a1308e
[   17.262265][  T338] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.262753][  T338] RSP: 002b:00007ffebd4a4630 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.262959][  T338] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5fb6a1308e
[   17.263158][  T338] RDX: 0000000000000000 RSI: 00007ffebd4a46e0 RDI: 0000000000000005
[   17.263358][  T338] RBP: 00007ffebd4a4640 R08: 0000000000000000 R09: 0000000000000000
[   17.263563][  T338] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac8
[   17.263769][  T338] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffebd4a4db0
| [   17.397681][  T341] ------------[ cut here ]------------
| [   17.397870][  T341] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/341
| [   17.398128][  T341] Modules linked in: ipvtap ipvlan
| [   17.398605][  T341] Tainted: [W]=WARN
[   17.398912][  T341] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.399097][  T341] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.399285][  T341] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.399893][  T341] RSP: 0018:ffa0000000c370b0 EFLAGS: 00010286
[   17.400074][  T341] RAX: 00000000ffffffa6 RBX: ff1100000ccabe00 RCX: 1ff4000000186ddc
[   17.400288][  T341] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ccabebc
[   17.400506][  T341] RBP: ff11000007edc000 R08: 1fe22000019957d9 R09: ff1100000ebfae80
[   17.400804][  T341] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   17.401114][  T341] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   17.401329][  T341] FS:  00007fe503750840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   17.401587][  T341] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.401882][  T341] CR2: 0000000000445730 CR3: 0000000009dea002 CR4: 0000000000771ef0
[   17.402099][  T341] PKRU: 55555554
[   17.402207][  T341] Call Trace:
[   17.402313][  T341]  <TASK>
[   17.402388][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.402541][  T341]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   17.402769][  T341]  notifier_call_chain (kernel/notifier.c:85)
[   17.402914][  T341]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   17.403056][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.403200][  T341]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   17.403341][  T341]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   17.403451][  T341]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   17.403635][  T341]  ? ida_destroy (lib/idr.c:623)
[   17.403850][  T341]  netdev_upper_dev_link (net/core/dev.c:8972)
[   17.403993][  T341]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   17.404136][  T341] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   17.404284][  T341]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   17.404425][  T341]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   17.404577][  T341] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   17.404755][  T341]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   17.404899][  T341]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   17.405040][  T341]  ? __dev_get_by_name (net/core/dev.c:883)
[   17.405184][  T341]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   17.405331][  T341]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   17.405487][  T341]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.405646][  T341]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.405794][  T341]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.405936][  T341]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.406076][  T341]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.406217][  T341]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.406363][  T341]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.406512][  T341]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.406661][  T341]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.406803][  T341]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.406943][  T341]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.407083][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.407227][  T341]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.407368][  T341]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.407517][  T341]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.407664][  T341]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.407807][  T341]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.407953][  T341]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.408094][  T341]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.408237][  T341]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.408381][  T341]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.408530][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.408688][  T341]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.408835][  T341]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.408978][  T341]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.409124][  T341]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.409267][  T341]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.409410][  T341]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.409593][  T341]  ? move_addr_to_kernel (net/socket.c:258)
[   17.409744][  T341]  ___sys_sendmsg (net/socket.c:2752)
[   17.409885][  T341]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.410026][  T341]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.410178][  T341]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   17.410325][  T341]  __sys_sendmsg (net/socket.c:2784)
[   17.410468][  T341]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.410620][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.410768][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.410911][  T341]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.411053][  T341]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.411196][  T341]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.411340][  T341]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.411524][  T341] RIP: 0033:0x7fe50398a08e
[   17.411679][  T341] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.412187][  T341] RSP: 002b:00007fff1076cf80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.412402][  T341] RAX: ffffffffffffffda RBX: 00007fff1076d738 RCX: 00007fe50398a08e
[   17.412619][  T341] RDX: 0000000000000000 RSI: 00007fff1076d030 RDI: 0000000000000005
[   17.412838][  T341] RBP: 00007fff1076cf90 R08: 0000000000000000 R09: 0000000000000000
[   17.413050][  T341] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac8
[   17.413263][  T341] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff1076d6f0
| [   17.415017][  T341] ------------[ cut here ]------------
| [   17.415162][  T341] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/341
| [   17.415396][  T341] Modules linked in: ipvtap ipvlan
| [   17.415827][  T341] Tainted: [W]=WARN
[   17.415931][  T341] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.416102][  T341] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.416279][  T341] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.416772][  T341] RSP: 0018:ffa0000000c371b0 EFLAGS: 00010286
[   17.416943][  T341] RAX: 00000000ffffffa6 RBX: ff1100000569b8c0 RCX: 1ff4000000186dfc
[   17.417146][  T341] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000569b97c
[   17.417348][  T341] RBP: ff11000012c3a000 R08: 1fe2200000ad3731 R09: ff1100000ebfae80
[   17.417557][  T341] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   17.417767][  T341] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   17.417974][  T341] FS:  00007fe503750840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   17.418211][  T341] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.418383][  T341] CR2: 000000000fce6988 CR3: 0000000009dea001 CR4: 0000000000771ef0
[   17.418591][  T341] PKRU: 55555554
[   17.418699][  T341] Call Trace:
[   17.418802][  T341]  <TASK>
[   17.418873][  T341]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.419011][  T341]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.419114][  T341]  ? ida_destroy (lib/idr.c:623)
[   17.419251][  T341]  __dev_notify_flags (net/core/dev.c:9787)
[   17.419389][  T341]  ? netif_change_name (net/core/dev.c:1495)
[   17.419530][  T341]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.419672][  T341]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   17.419845][  T341]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   17.420015][  T341]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   17.420151][  T341]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   17.420288][  T341]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   17.420425][  T341]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   17.420569][  T341]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   17.420714][  T341]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   17.420851][  T341]  ? __dev_get_by_name (net/core/dev.c:883)
[   17.420988][  T341]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   17.421130][  T341]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   17.421270][  T341]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.421410][  T341]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.421554][  T341]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.421696][  T341]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.421836][  T341]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.421973][  T341]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.422114][  T341]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.422250][  T341]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.422390][  T341]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.422531][  T341]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.422671][  T341]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.422807][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.422946][  T341]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.423083][  T341]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.423220][  T341]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.423359][  T341]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.423502][  T341]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.423642][  T341]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.423784][  T341]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.423922][  T341]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.424060][  T341]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.424199][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.424337][  T341]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.424480][  T341]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.424621][  T341]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.424766][  T341]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.424902][  T341]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.425038][  T341]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.425207][  T341]  ? move_addr_to_kernel (net/socket.c:258)
[   17.425348][  T341]  ___sys_sendmsg (net/socket.c:2752)
[   17.425488][  T341]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.425629][  T341]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.425779][  T341]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   17.425918][  T341]  __sys_sendmsg (net/socket.c:2784)
[   17.426057][  T341]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.426197][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.426334][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.426473][  T341]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.426615][  T341]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.426757][  T341]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.426894][  T341]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.427065][  T341] RIP: 0033:0x7fe50398a08e
[   17.427207][  T341] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.427704][  T341] RSP: 002b:00007fff1076cf80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.427909][  T341] RAX: ffffffffffffffda RBX: 00007fff1076d738 RCX: 00007fe50398a08e
[   17.428112][  T341] RDX: 0000000000000000 RSI: 00007fff1076d030 RDI: 0000000000000005
[   17.428316][  T341] RBP: 00007fff1076cf90 R08: 0000000000000000 R09: 0000000000000000
[   17.428525][  T341] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac8
[   17.428735][  T341] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff1076d6f0
| [   17.482663][  T343] ------------[ cut here ]------------
| [   17.482826][  T343] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/343
| [   17.483071][  T343] Modules linked in: ipvtap ipvlan
| [   17.483505][  T343] Tainted: [W]=WARN
[   17.483608][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.483782][  T343] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.483957][  T343] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.484447][  T343] RSP: 0018:ffa0000000547a80 EFLAGS: 00010286
[   17.484622][  T343] RAX: 00000000ffffffa6 RBX: ff1100000a1338c0 RCX: 1ff40000000a8f16
[   17.484888][  T343] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a13397c
[   17.485089][  T343] RBP: ff1100000f7e9000 R08: 1fe2200001426731 R09: ff1100000e7d2e80
[   17.485288][  T343] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   17.485492][  T343] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f7e9000
[   17.485760][  T343] FS:  00007f0e3d4cd840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   17.486070][  T343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.486239][  T343] CR2: 00007f0e3d6cec20 CR3: 0000000004f10004 CR4: 0000000000771ef0
[   17.486441][  T343] PKRU: 55555554
[   17.486546][  T343] Call Trace:
[   17.486649][  T343]  <TASK>
[   17.486779][  T343]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.486916][  T343]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.487052][  T343]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.487155][  T343]  register_netdevice (net/core/dev.c:11488)
[   17.487292][  T343]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.487460][  T343]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   17.487600][  T343]  register_netdev (net/core/dev.c:11552)
[   17.487788][  T343]  loopback_net_init (drivers/net/loopback.c:218)
[   17.487926][  T343]  ops_init (net/core/net_namespace.c:137)
[   17.488030][  T343]  setup_net (net/core/net_namespace.c:446)
[   17.488131][  T343]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.488265][  T343]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.488402][  T343]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.488544][  T343]  copy_net_ns (net/core/net_namespace.c:579)
[   17.488735][  T343]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.488874][  T343]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.489008][  T343]  ksys_unshare (kernel/fork.c:3243)
[   17.489143][  T343]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.489278][  T343]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.489415][  T343]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.489555][  T343]  ? __ia32_sys_open (fs/open.c:1374)
[   17.489745][  T343]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.489879][  T343]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.490012][  T343]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.490145][  T343]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.490279][  T343]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.490412][  T343]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.490586][  T343] RIP: 0033:0x7f0e3d78fbcb
[   17.490783][  T343] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.491256][  T343] RSP: 002b:00007ffcadc88798 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.491457][  T343] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0e3d78fbcb
[   17.491693][  T343] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.491891][  T343] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.492089][  T343] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcadc8a9c0
[   17.492286][  T343] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcadc8c87e
| [   17.496780][  T343] ------------[ cut here ]------------
| [   17.496932][  T343] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/343
| [   17.497166][  T343] Modules linked in: ipvtap ipvlan
| [   17.497578][  T343] Tainted: [W]=WARN
[   17.497685][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.497851][  T343] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.498024][  T343] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.498500][  T343] RSP: 0018:ffa0000000547918 EFLAGS: 00010286
[   17.498672][  T343] RAX: 00000000ffffffa6 RBX: ff1100000df9ce40 RCX: 1ff40000000a8ee9
[   17.498871][  T343] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df9cefc
[   17.499068][  T343] RBP: ff1100000e8d4000 R08: 1fe2200001bf39e1 R09: ff1100000e7d2e80
[   17.499267][  T343] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   17.499466][  T343] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e8d4000
[   17.500177][  T343] FS:  00007f0e3d4cd840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   17.500414][  T343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.500587][  T343] CR2: 00007f0e3d6cec20 CR3: 0000000004f10004 CR4: 0000000000771ef0
[   17.500844][  T343] PKRU: 55555554
[   17.500944][  T343] Call Trace:
[   17.501043][  T343]  <TASK>
[   17.501111][  T343]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.501246][  T343]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.501378][  T343]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.501482][  T343]  register_netdevice (net/core/dev.c:11488)
[   17.501616][  T343]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.501836][  T343]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   17.501973][  T343]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   17.502108][  T343]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   17.502241][  T343]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   17.502377][  T343]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   17.502518][  T343]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   17.502708][  T343]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   17.502844][  T343]  ops_init (net/core/net_namespace.c:137)
[   17.502948][  T343]  setup_net (net/core/net_namespace.c:446)
[   17.503050][  T343]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.503184][  T343]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.503318][  T343]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.503455][  T343]  copy_net_ns (net/core/net_namespace.c:579)
[   17.503593][  T343]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.503783][  T343]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.503921][  T343]  ksys_unshare (kernel/fork.c:3243)
[   17.504057][  T343]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.504193][  T343]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.504326][  T343]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.504461][  T343]  ? __ia32_sys_open (fs/open.c:1374)
[   17.504602][  T343]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.504790][  T343]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.504923][  T343]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.505056][  T343]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.505190][  T343]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.505324][  T343]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.505494][  T343] RIP: 0033:0x7f0e3d78fbcb
[   17.505634][  T343] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.506165][  T343] RSP: 002b:00007ffcadc88798 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.506368][  T343] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0e3d78fbcb
[   17.506575][  T343] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.506827][  T343] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.507028][  T343] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcadc8a9c0
[   17.507229][  T343] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcadc8c87e
| [   17.511663][  T343] ------------[ cut here ]------------
| [   17.511861][  T343] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/343
| [   17.512144][  T343] Modules linked in: ipvtap ipvlan
| [   17.512678][  T343] Tainted: [W]=WARN
[   17.512827][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.513044][  T343] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.513267][  T343] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.513817][  T343] RSP: 0018:ffa00000005478f8 EFLAGS: 00010286
[   17.514034][  T343] RAX: 00000000ffffffa6 RBX: ff11000012914580 RCX: 1ff40000000a8ee5
[   17.514282][  T343] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001291463c
[   17.514541][  T343] RBP: ff1100000fd01000 R08: 1fe22000025228c9 R09: ff1100000e7d2e80
[   17.514800][  T343] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.515047][  T343] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fd01000
[   17.515300][  T343] FS:  00007f0e3d4cd840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   17.515591][  T343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.515822][  T343] CR2: 00005559e9c93d5c CR3: 0000000004f10006 CR4: 0000000000771ef0
[   17.516072][  T343] PKRU: 55555554
[   17.516220][  T343] Call Trace:
[   17.516368][  T343]  <TASK>
[   17.516493][  T343]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.516690][  T343]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.516876][  T343]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.517027][  T343]  register_netdevice (net/core/dev.c:11488)
[   17.517211][  T343]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.517427][  T343]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   17.517621][  T343]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   17.517828][  T343]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   17.518010][  T343]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   17.518197][  T343]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   17.518380][  T343]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   17.518572][  T343]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   17.518774][  T343]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   17.518960][  T343]  vti_init_net (net/ipv4/ip_vti.c:517)
[   17.519144][  T343]  ops_init (net/core/net_namespace.c:137)
[   17.519308][  T343]  setup_net (net/core/net_namespace.c:446)
[   17.519461][  T343]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.519665][  T343]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.519849][  T343]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.520035][  T343]  copy_net_ns (net/core/net_namespace.c:579)
[   17.520220][  T343]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.520406][  T343]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.520605][  T343]  ksys_unshare (kernel/fork.c:3243)
[   17.520805][  T343]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.520987][  T343]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.521171][  T343]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.521355][  T343]  ? __ia32_sys_open (fs/open.c:1374)
[   17.521548][  T343]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.521742][  T343]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.521930][  T343]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.522114][  T343]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.522301][  T343]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.522494][  T343]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.522723][  T343] RIP: 0033:0x7f0e3d78fbcb
[   17.522912][  T343] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.523440][  T343] RSP: 002b:00007ffcadc88798 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.523703][  T343] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0e3d78fbcb
[   17.523951][  T343] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.524203][  T343] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.524452][  T343] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcadc8a9c0
[   17.524722][  T343] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcadc8c87e
| [   17.529968][  T343] ------------[ cut here ]------------
| [   17.530154][  T343] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/343
| [   17.530459][  T343] Modules linked in: ipvtap ipvlan
| [   17.530986][  T343] Tainted: [W]=WARN
[   17.531134][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.531365][  T343] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.531592][  T343] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.532214][  T343] RSP: 0018:ffa0000000547a78 EFLAGS: 00010286
[   17.532494][  T343] RAX: 00000000ffffffa6 RBX: ff1100000d4e9c40 RCX: 1ff40000000a8f15
[   17.532823][  T343] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d4e9cfc
[   17.533121][  T343] RBP: ff11000002429000 R08: 1fe2200001a9d3a1 R09: ff1100000e7d2e80
[   17.533424][  T343] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.533742][  T343] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002429000
[   17.534064][  T343] FS:  00007f0e3d4cd840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   17.534397][  T343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.534689][  T343] CR2: 00005559e9c93d5c CR3: 0000000004f10006 CR4: 0000000000771ef0
[   17.534995][  T343] PKRU: 55555554
[   17.535194][  T343] Call Trace:
[   17.535418][  T343]  <TASK>
[   17.535599][  T343]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.535852][  T343]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.536091][  T343]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.536293][  T343]  register_netdevice (net/core/dev.c:11488)
[   17.536539][  T343]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.536823][  T343]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.537078][  T343]  register_netdev (net/core/dev.c:11552)
[   17.537296][  T343]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   17.537487][  T343]  ops_init (net/core/net_namespace.c:137)
[   17.537639][  T343]  setup_net (net/core/net_namespace.c:446)
[   17.537802][  T343]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.537984][  T343]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.538166][  T343]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.538368][  T343]  copy_net_ns (net/core/net_namespace.c:579)
[   17.538559][  T343]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.538756][  T343]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.538938][  T343]  ksys_unshare (kernel/fork.c:3243)
[   17.539120][  T343]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.539303][  T343]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.539490][  T343]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.539705][  T343]  ? __ia32_sys_open (fs/open.c:1374)
[   17.539889][  T343]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.540070][  T343]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.540250][  T343]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.540430][  T343]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.540621][  T343]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.540831][  T343]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.541045][  T343] RIP: 0033:0x7f0e3d78fbcb
[   17.541232][  T343] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.541769][  T343] RSP: 002b:00007ffcadc88798 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.542038][  T343] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0e3d78fbcb
[   17.542283][  T343] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.542535][  T343] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.542796][  T343] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcadc8a9c0
[   17.543062][  T343] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcadc8c87e
| [   17.554686][  T343] ------------[ cut here ]------------
| [   17.554876][  T343] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/343
| [   17.555154][  T343] Modules linked in: ipvtap ipvlan
| [   17.555679][  T343] Tainted: [W]=WARN
[   17.555828][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.556041][  T343] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.556263][  T343] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.556802][  T343] RSP: 0018:ffa0000000547a68 EFLAGS: 00010286
[   17.557019][  T343] RAX: 00000000ffffffa6 RBX: ff11000009a7c040 RCX: 1ff40000000a8f13
[   17.557265][  T343] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a7c0fc
[   17.557520][  T343] RBP: ff11000013c1c000 R08: 1fe220000134f821 R09: ff1100000e7d2e80
[   17.557780][  T343] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.558027][  T343] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013c1c000
[   17.558277][  T343] FS:  00007f0e3d4cd840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   17.558575][  T343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.558803][  T343] CR2: 00005559e9c93d5c CR3: 0000000004f10006 CR4: 0000000000771ef0
[   17.559052][  T343] PKRU: 55555554
[   17.559199][  T343] Call Trace:
[   17.559347][  T343]  <TASK>
[   17.559464][  T343]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.559668][  T343]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.559851][  T343]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.560003][  T343]  register_netdevice (net/core/dev.c:11488)
[   17.560186][  T343]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.560402][  T343]  register_netdev (net/core/dev.c:11552)
[   17.560588][  T343]  sit_init_net (net/ipv6/sit.c:1860)
[   17.560784][  T343]  ops_init (net/core/net_namespace.c:137)
[   17.560936][  T343]  setup_net (net/core/net_namespace.c:446)
[   17.561087][  T343]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.561270][  T343]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.561451][  T343]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.561642][  T343]  copy_net_ns (net/core/net_namespace.c:579)
[   17.561838][  T343]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.562023][  T343]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.562205][  T343]  ksys_unshare (kernel/fork.c:3243)
[   17.562389][  T343]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.562577][  T343]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.562768][  T343]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.562952][  T343]  ? __ia32_sys_open (fs/open.c:1374)
[   17.563138][  T343]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.563319][  T343]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.563507][  T343]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.563701][  T343]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.563885][  T343]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.564069][  T343]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.564283][  T343] RIP: 0033:0x7f0e3d78fbcb
[   17.564468][  T343] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.565009][  T343] RSP: 002b:00007ffcadc88798 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.565257][  T343] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0e3d78fbcb
[   17.565512][  T343] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.565769][  T343] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.566016][  T343] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcadc8a9c0
[   17.566264][  T343] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcadc8c87e
| [   17.571113][  T343] ------------[ cut here ]------------
| [   17.571302][  T343] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/343
| [   17.571586][  T343] Modules linked in: ipvtap ipvlan
| [   17.572132][  T343] Tainted: [W]=WARN
[   17.572282][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.572507][  T343] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.572741][  T343] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.573257][  T343] RSP: 0018:ffa0000000547a78 EFLAGS: 00010286
[   17.573484][  T343] RAX: 00000000ffffffa6 RBX: ff11000012915c40 RCX: 1ff40000000a8f15
[   17.573745][  T343] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012915cfc
[   17.573992][  T343] RBP: ff11000013c31000 R08: 1fe2200002522ba1 R09: ff1100000e7d2e80
[   17.574238][  T343] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.574498][  T343] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013c31000
[   17.574762][  T343] FS:  00007f0e3d4cd840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   17.575045][  T343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.575260][  T343] CR2: 00005559e9c93d5c CR3: 0000000004f10006 CR4: 0000000000771ef0
[   17.575519][  T343] PKRU: 55555554
[   17.575685][  T343] Call Trace:
[   17.575833][  T343]  <TASK>
[   17.575952][  T343]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.576135][  T343]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.576316][  T343]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.576468][  T343]  register_netdevice (net/core/dev.c:11488)
[   17.576673][  T343]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.576886][  T343]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.577075][  T343]  register_netdev (net/core/dev.c:11552)
[   17.577258][  T343]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   17.577444][  T343]  ops_init (net/core/net_namespace.c:137)
[   17.577596][  T343]  setup_net (net/core/net_namespace.c:446)
[   17.577759][  T343]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.577939][  T343]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.578123][  T343]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.578309][  T343]  copy_net_ns (net/core/net_namespace.c:579)
[   17.578500][  T343]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.578699][  T343]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.578882][  T343]  ksys_unshare (kernel/fork.c:3243)
[   17.579065][  T343]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.579246][  T343]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.579429][  T343]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.579625][  T343]  ? __ia32_sys_open (fs/open.c:1374)
[   17.579823][  T343]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.580005][  T343]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.580186][  T343]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.580369][  T343]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.580556][  T343]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.580753][  T343]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.580968][  T343] RIP: 0033:0x7f0e3d78fbcb
[   17.581160][  T343] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.581703][  T343] RSP: 002b:00007ffcadc88798 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.581956][  T343] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0e3d78fbcb
[   17.582207][  T343] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.582454][  T343] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.582725][  T343] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcadc8a9c0
[   17.582972][  T343] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcadc8c87e
| [   17.608099][  T344] ------------[ cut here ]------------
| [   17.608260][  T344] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/344
| [   17.608505][  T344] Modules linked in: ipvtap ipvlan
| [   17.609615][  T344] Tainted: [W]=WARN
[   17.609783][  T344] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.609957][  T344] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.610137][  T344] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.610619][  T344] RSP: 0018:ffa0000000547020 EFLAGS: 00010286
[   17.610803][  T344] RAX: 00000000ffffffa6 RBX: ff1100001078d540 RCX: 1ff40000000a8dca
[   17.611008][  T344] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001078d5fc
[   17.611207][  T344] RBP: ff1100000f7e9000 R08: 1fe22000020f1ac1 R09: ff1100000f9e0b58
[   17.611405][  T344] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   17.611610][  T344] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   17.611822][  T344] FS:  00007fea4c485840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   17.612054][  T344] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.612220][  T344] CR2: 0000000002e34988 CR3: 0000000013d3f005 CR4: 0000000000771ef0
[   17.612418][  T344] PKRU: 55555554
[   17.612521][  T344] Call Trace:
[   17.612620][  T344]  <TASK>
[   17.612701][  T344]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.612835][  T344]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.612936][  T344]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   17.613069][  T344]  __dev_notify_flags (net/core/dev.c:9787)
[   17.613202][  T344]  ? netif_change_name (net/core/dev.c:1495)
[   17.613336][  T344]  ? __dev_change_flags (net/core/dev.c:9752)
[   17.613469][  T344]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   17.613611][  T344]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.613749][  T344]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   17.613884][  T344]  netif_change_flags (net/core/dev.c:9820)
[   17.614017][  T344]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   17.614150][  T344]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   17.614287][  T344]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   17.614421][  T344]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   17.614600][  T344]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.614736][  T344]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.614868][  T344]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.615000][  T344]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.615135][  T344]  ? __kernel_text_address (kernel/extable.c:79)
[   17.615268][  T344]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.615409][  T344]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.615547][  T344]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   17.615687][  T344]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.615821][  T344]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.615952][  T344]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.616083][  T344]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.616223][  T344]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   17.616357][  T344]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   17.616493][  T344]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   17.616626][  T344]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   17.616767][  T344]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   17.616903][  T344]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   17.617038][  T344]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.617179][  T344]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.617311][  T344]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.617443][  T344]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.617578][  T344]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.617716][  T344]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.617850][  T344]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.617988][  T344]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.618120][  T344]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.618253][  T344]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.618387][  T344]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.618523][  T344]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.618660][  T344]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.618793][  T344]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.618931][  T344]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.619065][  T344]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.619196][  T344]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.619330][  T344]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.619462][  T344]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.619601][  T344]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.619749][  T344]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.619880][  T344]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.620014][  T344]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.620149][  T344]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.620283][  T344]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.620416][  T344]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.620555][  T344]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.620700][  T344]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.620835][  T344]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.620967][  T344]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.621099][  T344]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.621263][  T344]  ? move_addr_to_kernel (net/socket.c:258)
[   17.621399][  T344]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.621542][  T344]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.621682][  T344]  ___sys_sendmsg (net/socket.c:2752)
[   17.621815][  T344]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   17.621979][  T344]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.622123][  T344]  __sys_sendmsg (net/socket.c:2784)
[   17.622255][  T344]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.622394][  T344]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   17.622567][  T344]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   17.622706][  T344]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.622839][  T344]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.622971][  T344]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.623104][  T344]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.623236][  T344]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.623407][  T344] RIP: 0033:0x7fea4c6bf08e
[   17.623550][  T344] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.624027][  T344] RSP: 002b:00007ffc5112bfd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.624233][  T344] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fea4c6bf08e
[   17.624433][  T344] RDX: 0000000000000000 RSI: 00007ffc5112c080 RDI: 0000000000000005
[   17.624636][  T344] RBP: 00007ffc5112bfe0 R08: 0000000000000000 R09: 0000000000000000
[   17.624840][  T344] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac8
[   17.625044][  T344] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc5112c750
| [   17.760466][  T347] ------------[ cut here ]------------
| [   17.760664][  T347] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/347
| [   17.760923][  T347] Modules linked in: ipvtap ipvlan
| [   17.761368][  T347] Tainted: [W]=WARN
[   17.761481][  T347] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.761668][  T347] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.761856][  T347] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.762364][  T347] RSP: 0018:ffa0000000c670b0 EFLAGS: 00010286
[   17.762555][  T347] RAX: 00000000ffffffa6 RBX: ff110000104d4c80 RCX: 1ff400000018cddc
[   17.762773][  T347] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104d4d3c
[   17.762986][  T347] RBP: ff11000007edc000 R08: 1fe220000209a9a9 R09: ff1100000f885180
[   17.763203][  T347] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   17.763420][  T347] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   17.764262][  T347] FS:  00007f0812277840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   17.764527][  T347] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.764808][  T347] CR2: 0000000000445730 CR3: 000000000a21f006 CR4: 0000000000771ef0
[   17.765110][  T347] PKRU: 55555554
[   17.765220][  T347] Call Trace:
[   17.765332][  T347]  <TASK>
[   17.765407][  T347]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.765559][  T347]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   17.765788][  T347]  notifier_call_chain (kernel/notifier.c:85)
[   17.765936][  T347]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   17.766081][  T347]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.766223][  T347]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   17.766365][  T347]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   17.766478][  T347]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   17.766754][  T347]  ? ida_destroy (lib/idr.c:623)
[   17.766901][  T347]  netdev_upper_dev_link (net/core/dev.c:8972)
[   17.767044][  T347]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   17.767188][  T347] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   17.767334][  T347]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   17.767480][  T347]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   17.767625][  T347] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   17.767829][  T347]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   17.767982][  T347]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   17.768125][  T347]  ? __dev_get_by_name (net/core/dev.c:883)
[   17.768267][  T347]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   17.768418][  T347]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   17.768569][  T347]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.768811][  T347]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.768955][  T347]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.769100][  T347]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.769244][  T347]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.769387][  T347]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.769540][  T347]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.769719][  T347]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.769869][  T347]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.770016][  T347]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.770161][  T347]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.770302][  T347]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.770450][  T347]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.770599][  T347]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.770749][  T347]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.770892][  T347]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.771034][  T347]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.771182][  T347]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.771325][  T347]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.771469][  T347]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.771618][  T347]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.771767][  T347]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.771913][  T347]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.772056][  T347]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.772199][  T347]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.772345][  T347]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.772493][  T347]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.772639][  T347]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.772825][  T347]  ? move_addr_to_kernel (net/socket.c:258)
[   17.772971][  T347]  ___sys_sendmsg (net/socket.c:2752)
[   17.773115][  T347]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.773261][  T347]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.773414][  T347]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   17.773568][  T347]  __sys_sendmsg (net/socket.c:2784)
[   17.773718][  T347]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.773865][  T347]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.774007][  T347]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.774154][  T347]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.774299][  T347]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.774444][  T347]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.774590][  T347]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.774772][  T347] RIP: 0033:0x7f08124b108e
[   17.774923][  T347] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.775434][  T347] RSP: 002b:00007ffe8422c9b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.775660][  T347] RAX: ffffffffffffffda RBX: 00007ffe8422d168 RCX: 00007f08124b108e
[   17.775874][  T347] RDX: 0000000000000000 RSI: 00007ffe8422ca60 RDI: 0000000000000005
[   17.776087][  T347] RBP: 00007ffe8422c9c0 R08: 0000000000000000 R09: 0000000000000000
[   17.776300][  T347] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac9
[   17.776520][  T347] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe8422d120
| [   17.778290][  T347] ------------[ cut here ]------------
| [   17.778441][  T347] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/347
| [   17.778703][  T347] Modules linked in: ipvtap ipvlan
| [   17.779125][  T347] Tainted: [W]=WARN
[   17.779231][  T347] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.779409][  T347] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.779596][  T347] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.780088][  T347] RSP: 0018:ffa0000000c671b0 EFLAGS: 00010286
[   17.780261][  T347] RAX: 00000000ffffffa6 RBX: ff1100000df9d540 RCX: 1ff400000018cdfc
[   17.780466][  T347] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df9d5fc
[   17.780689][  T347] RBP: ff110000133c2000 R08: 1fe2200001bf3ac1 R09: ff1100000f885180
[   17.780894][  T347] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   17.781098][  T347] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   17.781305][  T347] FS:  00007f0812277840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   17.781553][  T347] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.781732][  T347] CR2: 00007fd202b1c2a0 CR3: 000000000a21f003 CR4: 0000000000771ef0
[   17.781938][  T347] PKRU: 55555554
[   17.782043][  T347] Call Trace:
[   17.782146][  T347]  <TASK>
[   17.782217][  T347]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.782357][  T347]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.782461][  T347]  ? ida_destroy (lib/idr.c:623)
[   17.782609][  T347]  __dev_notify_flags (net/core/dev.c:9787)
[   17.782755][  T347]  ? netif_change_name (net/core/dev.c:1495)
[   17.782891][  T347]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.783028][  T347]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   17.783200][  T347]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   17.783369][  T347]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   17.783514][  T347]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   17.783660][  T347]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   17.783797][  T347]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   17.783934][  T347]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   17.784073][  T347]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   17.784209][  T347]  ? __dev_get_by_name (net/core/dev.c:883)
[   17.784345][  T347]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   17.784491][  T347]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   17.784633][  T347]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.784778][  T347]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.784913][  T347]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.785049][  T347]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.785187][  T347]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.785322][  T347]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.785462][  T347]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.785606][  T347]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.785750][  T347]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.785885][  T347]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.786020][  T347]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.786167][  T347]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.786344][  T347]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.786545][  T347]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.786729][  T347]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.786866][  T347]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.787003][  T347]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.787144][  T347]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.787281][  T347]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.787422][  T347]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.787567][  T347]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.787712][  T347]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.787851][  T347]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.787989][  T347]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.788127][  T347]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.788266][  T347]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.788402][  T347]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.788548][  T347]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.788724][  T347]  ? move_addr_to_kernel (net/socket.c:258)
[   17.788867][  T347]  ___sys_sendmsg (net/socket.c:2752)
[   17.789004][  T347]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.789141][  T347]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.789287][  T347]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   17.789429][  T347]  __sys_sendmsg (net/socket.c:2784)
[   17.789574][  T347]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.789720][  T347]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.789857][  T347]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.789996][  T347]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.790133][  T347]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.790271][  T347]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.790410][  T347]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.790588][  T347] RIP: 0033:0x7f08124b108e
[   17.790737][  T347] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.791225][  T347] RSP: 002b:00007ffe8422c9b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.791430][  T347] RAX: ffffffffffffffda RBX: 00007ffe8422d168 RCX: 00007f08124b108e
[   17.791648][  T347] RDX: 0000000000000000 RSI: 00007ffe8422ca60 RDI: 0000000000000005
[   17.791860][  T347] RBP: 00007ffe8422c9c0 R08: 0000000000000000 R09: 0000000000000000
[   17.792066][  T347] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac9
[   17.792269][  T347] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe8422d120
| [   17.846625][  T349] ------------[ cut here ]------------
| [   17.846864][  T349] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/349
| [   17.847160][  T349] Modules linked in: ipvtap ipvlan
| [   17.847698][  T349] Tainted: [W]=WARN
[   17.847852][  T349] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.848068][  T349] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.848296][  T349] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.848845][  T349] RSP: 0018:ffa0000000c27a80 EFLAGS: 00010286
[   17.849069][  T349] RAX: 00000000ffffffa6 RBX: ff110000094c3700 RCX: 1ff4000000184f16
[   17.849322][  T349] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000094c37bc
[   17.849585][  T349] RBP: ff11000013499000 R08: 1fe22000012986f9 R09: ff1100000283ae80
[   17.849917][  T349] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.850224][  T349] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013499000
[   17.850498][  T349] FS:  00007f56d0459840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   17.850800][  T349] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.851020][  T349] CR2: 00007f56d065ac20 CR3: 000000000f9b5002 CR4: 0000000000771ef0
[   17.851278][  T349] PKRU: 55555554
[   17.851431][  T349] Call Trace:
[   17.851595][  T349]  <TASK>
[   17.851727][  T349]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.851912][  T349]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.852108][  T349]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.852263][  T349]  register_netdevice (net/core/dev.c:11488)
[   17.852454][  T349]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.852693][  T349]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   17.852883][  T349]  register_netdev (net/core/dev.c:11552)
[   17.853068][  T349]  loopback_net_init (drivers/net/loopback.c:218)
[   17.853254][  T349]  ops_init (net/core/net_namespace.c:137)
[   17.853409][  T349]  setup_net (net/core/net_namespace.c:446)
[   17.853569][  T349]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.853769][  T349]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.853957][  T349]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.854147][  T349]  copy_net_ns (net/core/net_namespace.c:579)
[   17.854333][  T349]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.854529][  T349]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.854728][  T349]  ksys_unshare (kernel/fork.c:3243)
[   17.854911][  T349]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.855094][  T349]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.855278][  T349]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.855464][  T349]  ? __ia32_sys_open (fs/open.c:1374)
[   17.855670][  T349]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.855852][  T349]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.856034][  T349]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.856216][  T349]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.856399][  T349]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.856596][  T349]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.856825][  T349] RIP: 0033:0x7f56d071bbcb
[   17.857015][  T349] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.857554][  T349] RSP: 002b:00007ffcb8e32468 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.857818][  T349] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f56d071bbcb
[   17.858068][  T349] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.858315][  T349] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.858572][  T349] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcb8e34690
[   17.858831][  T349] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcb8e3687e
| [   17.863645][  T349] ------------[ cut here ]------------
| [   17.863848][  T349] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/349
| [   17.864128][  T349] Modules linked in: ipvtap ipvlan
| [   17.864643][  T349] Tainted: [W]=WARN
[   17.864804][  T349] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.865027][  T349] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.865250][  T349] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.865862][  T349] RSP: 0018:ffa0000000c27918 EFLAGS: 00010286
[   17.866134][  T349] RAX: 00000000ffffffa6 RBX: ff11000012982040 RCX: 1ff4000000184ee9
[   17.866436][  T349] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000129820fc
[   17.866775][  T349] RBP: ff11000013f89000 R08: 1fe2200002530421 R09: ff1100000283ae80
[   17.867079][  T349] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.867468][  T349] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013f89000
[   17.867830][  T349] FS:  00007f56d0459840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   17.868168][  T349] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.868436][  T349] CR2: 00007f56d065ac20 CR3: 000000000f9b5002 CR4: 0000000000771ef0
[   17.868777][  T349] PKRU: 55555554
[   17.868980][  T349] Call Trace:
[   17.869181][  T349]  <TASK>
[   17.869350][  T349]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.869599][  T349]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.869848][  T349]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.870108][  T349]  register_netdevice (net/core/dev.c:11488)
[   17.870444][  T349]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.870859][  T349]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   17.871174][  T349]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   17.871412][  T349]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   17.871676][  T349]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   17.871920][  T349]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   17.872158][  T349]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   17.872398][  T349]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   17.872644][  T349]  ops_init (net/core/net_namespace.c:137)
[   17.872916][  T349]  setup_net (net/core/net_namespace.c:446)
[   17.873120][  T349]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.873353][  T349]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.873596][  T349]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.873848][  T349]  copy_net_ns (net/core/net_namespace.c:579)
[   17.874085][  T349]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.874326][  T349]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.874573][  T349]  ksys_unshare (kernel/fork.c:3243)
[   17.874822][  T349]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.875016][  T349]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.875198][  T349]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.875383][  T349]  ? __ia32_sys_open (fs/open.c:1374)
[   17.875579][  T349]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.875776][  T349]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.875959][  T349]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.876142][  T349]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.876328][  T349]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.876523][  T349]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.876756][  T349] RIP: 0033:0x7f56d071bbcb
[   17.876944][  T349] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.877468][  T349] RSP: 002b:00007ffcb8e32468 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.877737][  T349] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f56d071bbcb
[   17.877983][  T349] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.878232][  T349] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.878487][  T349] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcb8e34690
[   17.878749][  T349] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcb8e3687e
| [   17.883251][  T349] ------------[ cut here ]------------
| [   17.883442][  T349] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/349
| [   17.883750][  T349] Modules linked in: ipvtap ipvlan
| [   17.884265][  T349] Tainted: [W]=WARN
[   17.884415][  T349] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.884642][  T349] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.884880][  T349] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.885411][  T349] RSP: 0018:ffa0000000c278f8 EFLAGS: 00010286
[   17.885643][  T349] RAX: 00000000ffffffa6 RBX: ff110000094c2200 RCX: 1ff4000000184ee5
[   17.885906][  T349] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000094c22bc
[   17.886155][  T349] RBP: ff11000013fa1000 R08: 1fe2200001298459 R09: ff1100000283ae80
[   17.886407][  T349] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.886680][  T349] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013fa1000
[   17.886931][  T349] FS:  00007f56d0459840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   17.887217][  T349] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.887439][  T349] CR2: 00007f56d065ac20 CR3: 000000000f9b5002 CR4: 0000000000771ef0
[   17.887708][  T349] PKRU: 55555554
[   17.887859][  T349] Call Trace:
[   17.888008][  T349]  <TASK>
[   17.888127][  T349]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.888312][  T349]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.888518][  T349]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.888689][  T349]  register_netdevice (net/core/dev.c:11488)
[   17.888876][  T349]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.889093][  T349]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   17.889281][  T349]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   17.889466][  T349]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   17.890200][  T349]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   17.890449][  T349]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   17.890721][  T349]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   17.890964][  T349]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   17.891205][  T349]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   17.891447][  T349]  vti_init_net (net/ipv4/ip_vti.c:517)
[   17.891710][  T349]  ops_init (net/core/net_namespace.c:137)
[   17.891918][  T349]  setup_net (net/core/net_namespace.c:446)
[   17.892124][  T349]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.892373][  T349]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.892625][  T349]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.892881][  T349]  copy_net_ns (net/core/net_namespace.c:579)
[   17.893122][  T349]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.893366][  T349]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.893616][  T349]  ksys_unshare (kernel/fork.c:3243)
[   17.893865][  T349]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.894104][  T349]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.894347][  T349]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.894595][  T349]  ? __ia32_sys_open (fs/open.c:1374)
[   17.894851][  T349]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.895092][  T349]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.895333][  T349]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.895582][  T349]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.895820][  T349]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.896011][  T349]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.896310][  T349] RIP: 0033:0x7f56d071bbcb
[   17.896546][  T349] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.897104][  T349] RSP: 002b:00007ffcb8e32468 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.897420][  T349] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f56d071bbcb
[   17.897695][  T349] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.897944][  T349] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.898194][  T349] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcb8e34690
[   17.898445][  T349] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcb8e3687e
| [   17.903405][  T349] ------------[ cut here ]------------
| [   17.903604][  T349] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/349
| [   17.903903][  T349] Modules linked in: ipvtap ipvlan
| [   17.904409][  T349] Tainted: [W]=WARN
[   17.904569][  T349] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.904803][  T349] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.905027][  T349] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.905561][  T349] RSP: 0018:ffa0000000c27a78 EFLAGS: 00010286
[   17.905793][  T349] RAX: 00000000ffffffa6 RBX: ff110000094c3380 RCX: 1ff4000000184f15
[   17.906048][  T349] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000094c343c
[   17.906298][  T349] RBP: ff11000013fc1000 R08: 1fe2200001298689 R09: ff1100000283ae80
[   17.906558][  T349] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.906819][  T349] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013fc1000
[   17.907074][  T349] FS:  00007f56d0459840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   17.907358][  T349] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.907587][  T349] CR2: 00007f56d065ac20 CR3: 000000000f9b5002 CR4: 0000000000771ef0
[   17.907851][  T349] PKRU: 55555554
[   17.908000][  T349] Call Trace:
[   17.908149][  T349]  <TASK>
[   17.908269][  T349]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.908455][  T349]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.908664][  T349]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.908818][  T349]  register_netdevice (net/core/dev.c:11488)
[   17.909003][  T349]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.909217][  T349]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.909404][  T349]  register_netdev (net/core/dev.c:11552)
[   17.909601][  T349]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   17.909800][  T349]  ops_init (net/core/net_namespace.c:137)
[   17.909954][  T349]  setup_net (net/core/net_namespace.c:446)
[   17.910106][  T349]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.910289][  T349]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.910483][  T349]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.910683][  T349]  copy_net_ns (net/core/net_namespace.c:579)
[   17.910873][  T349]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.911060][  T349]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.911246][  T349]  ksys_unshare (kernel/fork.c:3243)
[   17.911433][  T349]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.911625][  T349]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.911824][  T349]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.912009][  T349]  ? __ia32_sys_open (fs/open.c:1374)
[   17.912200][  T349]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.912384][  T349]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.912587][  T349]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.912789][  T349]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.912973][  T349]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.913157][  T349]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.913373][  T349] RIP: 0033:0x7f56d071bbcb
[   17.913572][  T349] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.914113][  T349] RSP: 002b:00007ffcb8e32468 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.914363][  T349] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f56d071bbcb
[   17.914622][  T349] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.914889][  T349] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.915138][  T349] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcb8e34690
[   17.915387][  T349] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcb8e3687e
| [   17.920140][  T349] ------------[ cut here ]------------
| [   17.920329][  T349] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/349
| [   17.920623][  T349] Modules linked in: ipvtap ipvlan
| [   17.921731][  T349] Tainted: [W]=WARN
[   17.921943][  T349] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.922235][  T349] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.922524][  T349] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.923122][  T349] RSP: 0018:ffa0000000c27a68 EFLAGS: 00010286
[   17.923393][  T349] RAX: 00000000ffffffa6 RBX: ff1100000d7acc80 RCX: 1ff4000000184f13
[   17.923752][  T349] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7acd3c
[   17.924054][  T349] RBP: ff11000013fec000 R08: 1fe2200001af59a9 R09: ff1100000283ae80
[   17.924360][  T349] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.924690][  T349] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013fec000
[   17.925014][  T349] FS:  00007f56d0459840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   17.925351][  T349] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.925636][  T349] CR2: 00007f56d065ac20 CR3: 000000000f9b5002 CR4: 0000000000771ef0
[   17.925953][  T349] PKRU: 55555554
[   17.926154][  T349] Call Trace:
[   17.926376][  T349]  <TASK>
[   17.926553][  T349]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.926809][  T349]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.927047][  T349]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.927254][  T349]  register_netdevice (net/core/dev.c:11488)
[   17.927503][  T349]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.927790][  T349]  register_netdev (net/core/dev.c:11552)
[   17.928020][  T349]  sit_init_net (net/ipv6/sit.c:1860)
[   17.928205][  T349]  ops_init (net/core/net_namespace.c:137)
[   17.928355][  T349]  setup_net (net/core/net_namespace.c:446)
[   17.928514][  T349]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.928709][  T349]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.928897][  T349]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.929081][  T349]  copy_net_ns (net/core/net_namespace.c:579)
[   17.929284][  T349]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.929469][  T349]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.929677][  T349]  ksys_unshare (kernel/fork.c:3243)
[   17.929861][  T349]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.930044][  T349]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.930227][  T349]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.930409][  T349]  ? __ia32_sys_open (fs/open.c:1374)
[   17.930624][  T349]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.930820][  T349]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.931002][  T349]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.931184][  T349]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.931365][  T349]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.931559][  T349]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.931806][  T349] RIP: 0033:0x7f56d071bbcb
[   17.931994][  T349] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.932521][  T349] RSP: 002b:00007ffcb8e32468 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.932804][  T349] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f56d071bbcb
[   17.933050][  T349] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.933295][  T349] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.933551][  T349] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcb8e34690
[   17.933815][  T349] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcb8e3687e
| [   17.946375][  T349] ------------[ cut here ]------------
| [   17.946584][  T349] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/349
| [   17.946910][  T349] Modules linked in: ipvtap ipvlan
| [   17.947414][  T349] Tainted: [W]=WARN
[   17.947572][  T349] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.947805][  T349] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.948028][  T349] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.948561][  T349] RSP: 0018:ffa0000000c27a78 EFLAGS: 00010286
[   17.948793][  T349] RAX: 00000000ffffffa6 RBX: ff11000012ab43c0 RCX: 1ff4000000184f15
[   17.949041][  T349] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012ab447c
[   17.949292][  T349] RBP: ff1100000f891000 R08: 1fe2200002556891 R09: ff1100000283ae80
[   17.949552][  T349] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.949813][  T349] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f891000
[   17.950065][  T349] FS:  00007f56d0459840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   17.950353][  T349] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.950577][  T349] CR2: 00007f56d065ac20 CR3: 000000000f9b5002 CR4: 0000000000771ef0
[   17.950836][  T349] PKRU: 55555554
[   17.950996][  T349] Call Trace:
[   17.951145][  T349]  <TASK>
[   17.951261][  T349]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.951448][  T349]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.951644][  T349]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.951809][  T349]  register_netdevice (net/core/dev.c:11488)
[   17.951993][  T349]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.952205][  T349]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.952391][  T349]  register_netdev (net/core/dev.c:11552)
[   17.952584][  T349]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   17.952790][  T349]  ops_init (net/core/net_namespace.c:137)
[   17.952944][  T349]  setup_net (net/core/net_namespace.c:446)
[   17.953093][  T349]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.953274][  T349]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.953458][  T349]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.953664][  T349]  copy_net_ns (net/core/net_namespace.c:579)
[   17.953848][  T349]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.954037][  T349]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.954220][  T349]  ksys_unshare (kernel/fork.c:3243)
[   17.954404][  T349]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.954592][  T349]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.954787][  T349]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.954972][  T349]  ? __ia32_sys_open (fs/open.c:1374)
[   17.955157][  T349]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.955342][  T349]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.955534][  T349]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.955730][  T349]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.955915][  T349]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.956099][  T349]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.956311][  T349] RIP: 0033:0x7f56d071bbcb
[   17.956505][  T349] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.957040][  T349] RSP: 002b:00007ffcb8e32468 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   17.957289][  T349] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f56d071bbcb
[   17.957546][  T349] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.957805][  T349] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.958052][  T349] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcb8e34690
[   17.958298][  T349] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcb8e3687e
| [   17.988931][  T350] ------------[ cut here ]------------
| [   17.989095][  T350] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/350
| [   17.989335][  T350] Modules linked in: ipvtap ipvlan
| [   17.989767][  T350] Tainted: [W]=WARN
[   17.989869][  T350] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.990037][  T350] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.990213][  T350] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.990699][  T350] RSP: 0018:ffa0000000bd7020 EFLAGS: 00010286
[   17.990870][  T350] RAX: 00000000ffffffa6 RBX: ff110000107a98c0 RCX: 1ff400000017adca
[   17.991069][  T350] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000107a997c
[   17.991268][  T350] RBP: ff11000013499000 R08: 1fe22000020f5331 R09: ff1100000a272e58
[   17.991466][  T350] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   17.991680][  T350] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   17.991881][  T350] FS:  00007f58465c9840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   17.992115][  T350] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.992282][  T350] CR2: 0000000038756988 CR3: 0000000013ea7004 CR4: 0000000000771ef0
[   17.992488][  T350] PKRU: 55555554
[   17.992589][  T350] Call Trace:
[   17.992694][  T350]  <TASK>
[   17.992764][  T350]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.992901][  T350]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.993002][  T350]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   17.993137][  T350]  __dev_notify_flags (net/core/dev.c:9787)
[   17.993273][  T350]  ? netif_change_name (net/core/dev.c:1495)
[   17.993409][  T350]  ? __dev_change_flags (net/core/dev.c:9752)
[   17.993549][  T350]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   17.994395][  T350]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.994542][  T350]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   17.994688][  T350]  netif_change_flags (net/core/dev.c:9820)
[   17.994831][  T350]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   17.994968][  T350]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   17.995106][  T350]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   17.995240][  T350]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   17.995410][  T350]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.995550][  T350]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.995690][  T350]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.995827][  T350]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.995963][  T350]  ? __kernel_text_address (kernel/extable.c:79)
[   17.996099][  T350]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.996235][  T350]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.996370][  T350]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   17.996510][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.996645][  T350]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.996786][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.996920][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.997056][  T350]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   17.997191][  T350]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   17.997327][  T350]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   17.997462][  T350]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   17.997605][  T350]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   17.997750][  T350]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   17.997891][  T350]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.998029][  T350]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.998164][  T350]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.998299][  T350]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.998434][  T350]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.998572][  T350]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.998715][  T350]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.998848][  T350]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.998984][  T350]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.999120][  T350]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.999257][  T350]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.999392][  T350]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.999532][  T350]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.999673][  T350]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.999807][  T350]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.999942][  T350]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.000077][  T350]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.000214][  T350]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   18.000349][  T350]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.000488][  T350]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   18.000628][  T350]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   18.000765][  T350]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   18.000902][  T350]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.001040][  T350]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   18.001176][  T350]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.001312][  T350]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   18.001447][  T350]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   18.001590][  T350]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   18.001733][  T350]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   18.001868][  T350]  ? copy_msghdr_from_user (net/socket.c:2635)
[   18.002001][  T350]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   18.002169][  T350]  ? move_addr_to_kernel (net/socket.c:258)
[   18.002305][  T350]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   18.002440][  T350]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   18.002582][  T350]  ___sys_sendmsg (net/socket.c:2752)
[   18.002722][  T350]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   18.002887][  T350]  ? copy_msghdr_from_user (net/socket.c:2603)
[   18.003035][  T350]  __sys_sendmsg (net/socket.c:2784)
[   18.003170][  T350]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   18.003306][  T350]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   18.003474][  T350]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   18.003616][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.003756][  T350]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.003891][  T350]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.004024][  T350]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.004162][  T350]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.004357][  T350] RIP: 0033:0x7f584680308e
[   18.004503][  T350] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   18.004984][  T350] RSP: 002b:00007ffd9ea44000 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   18.005187][  T350] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f584680308e
[   18.005386][  T350] RDX: 0000000000000000 RSI: 00007ffd9ea440b0 RDI: 0000000000000005
[   18.005587][  T350] RBP: 00007ffd9ea44010 R08: 0000000000000000 R09: 0000000000000000
[   18.005793][  T350] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac9
[   18.005993][  T350] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd9ea44780
| [   18.135611][  T353] ------------[ cut here ]------------
| [   18.136260][  T353] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/353
| [   18.136531][  T353] Modules linked in: ipvtap ipvlan
| [   18.136982][  T353] Tainted: [W]=WARN
[   18.137092][  T353] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.137273][  T353] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.137462][  T353] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.137983][  T353] RSP: 0018:ffa0000000ca70b0 EFLAGS: 00010286
[   18.138166][  T353] RAX: 00000000ffffffa6 RBX: ff11000012ab5700 RCX: 1ff4000000194ddc
[   18.138383][  T353] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012ab57bc
[   18.138601][  T353] RBP: ff11000007edc000 R08: 1fe2200002556af9 R09: ff1100000f995180
[   18.138828][  T353] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   18.139048][  T353] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   18.139264][  T353] FS:  00007f05d22b3840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   18.139523][  T353] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.139718][  T353] CR2: 0000000000445730 CR3: 00000000120a6005 CR4: 0000000000771ef0
[   18.139935][  T353] PKRU: 55555554
[   18.140044][  T353] Call Trace:
[   18.140157][  T353]  <TASK>
[   18.140233][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.140379][  T353]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   18.140529][  T353]  notifier_call_chain (kernel/notifier.c:85)
[   18.140681][  T353]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   18.140825][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.140970][  T353]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   18.141114][  T353]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   18.141224][  T353]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   18.141405][  T353]  ? ida_destroy (lib/idr.c:623)
[   18.141554][  T353]  netdev_upper_dev_link (net/core/dev.c:8972)
[   18.141708][  T353]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   18.141853][  T353] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   18.142001][  T353]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   18.142145][  T353]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   18.142291][  T353] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   18.142435][  T353]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   18.142586][  T353]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   18.142736][  T353]  ? __dev_get_by_name (net/core/dev.c:883)
[   18.142880][  T353]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   18.143031][  T353]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   18.143179][  T353]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   18.143325][  T353]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.143467][  T353]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.143615][  T353]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.143767][  T353]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   18.143909][  T353]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.144055][  T353]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.144201][  T353]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.144345][  T353]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   18.144490][  T353]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   18.144634][  T353]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.144782][  T353]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.144929][  T353]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.145072][  T353]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.145217][  T353]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   18.145362][  T353]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.145510][  T353]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   18.145663][  T353]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   18.145809][  T353]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   18.145957][  T353]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.146102][  T353]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   18.146247][  T353]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.146391][  T353]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   18.146539][  T353]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   18.146689][  T353]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   18.146836][  T353]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   18.146980][  T353]  ? copy_msghdr_from_user (net/socket.c:2635)
[   18.147125][  T353]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   18.147305][  T353]  ? move_addr_to_kernel (net/socket.c:258)
[   18.147453][  T353]  ___sys_sendmsg (net/socket.c:2752)
[   18.147599][  T353]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.147750][  T353]  ? copy_msghdr_from_user (net/socket.c:2603)
[   18.147904][  T353]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   18.148052][  T353]  __sys_sendmsg (net/socket.c:2784)
[   18.148198][  T353]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   18.148347][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.148494][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.148640][  T353]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.148867][  T353]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.149014][  T353]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.149157][  T353]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.149342][  T353] RIP: 0033:0x7f05d24ed08e
[   18.149499][  T353] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   18.150115][  T353] RSP: 002b:00007fff8c562850 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   18.150334][  T353] RAX: ffffffffffffffda RBX: 00007fff8c563008 RCX: 00007f05d24ed08e
[   18.150554][  T353] RDX: 0000000000000000 RSI: 00007fff8c562900 RDI: 0000000000000005
[   18.150828][  T353] RBP: 00007fff8c562860 R08: 0000000000000000 R09: 0000000000000000
[   18.151102][  T353] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac9
[   18.151318][  T353] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff8c562fc0
| [   18.153069][  T353] ------------[ cut here ]------------
| [   18.153205][  T353] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/353
| [   18.153440][  T353] Modules linked in: ipvtap ipvlan
| [   18.153866][  T353] Tainted: [W]=WARN
[   18.153970][  T353] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.154141][  T353] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.154318][  T353] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.154817][  T353] RSP: 0018:ffa0000000ca71b0 EFLAGS: 00010286
[   18.154990][  T353] RAX: 00000000ffffffa6 RBX: ff11000012ab5540 RCX: 1ff4000000194dfc
[   18.155197][  T353] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012ab55fc
[   18.155401][  T353] RBP: ff11000013532000 R08: 1fe2200002556ac1 R09: ff1100000f995180
[   18.155610][  T353] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   18.155820][  T353] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   18.156027][  T353] FS:  00007f05d22b3840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   18.156268][  T353] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.156440][  T353] CR2: 0000000000445730 CR3: 00000000120a6005 CR4: 0000000000771ef0
[   18.156658][  T353] PKRU: 55555554
[   18.156762][  T353] Call Trace:
[   18.156864][  T353]  <TASK>
[   18.156936][  T353]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.157075][  T353]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.157181][  T353]  ? ida_destroy (lib/idr.c:623)
[   18.157323][  T353]  __dev_notify_flags (net/core/dev.c:9787)
[   18.157463][  T353]  ? netif_change_name (net/core/dev.c:1495)
[   18.157605][  T353]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   18.157749][  T353]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   18.157923][  T353]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   18.158093][  T353]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   18.158234][  T353]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   18.158375][  T353]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   18.158519][  T353]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   18.158664][  T353]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   18.158805][  T353]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   18.158944][  T353]  ? __dev_get_by_name (net/core/dev.c:883)
[   18.159081][  T353]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   18.159226][  T353]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   18.159368][  T353]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   18.159514][  T353]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.159657][  T353]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.159795][  T353]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.159932][  T353]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   18.160069][  T353]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.160209][  T353]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.160348][  T353]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.160489][  T353]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   18.160627][  T353]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   18.160768][  T353]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.160906][  T353]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.161045][  T353]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.161181][  T353]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.161320][  T353]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   18.161459][  T353]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.161602][  T353]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   18.161748][  T353]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   18.161886][  T353]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   18.162026][  T353]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.162165][  T353]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   18.162304][  T353]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.162442][  T353]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   18.162585][  T353]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   18.162731][  T353]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   18.162871][  T353]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   18.163008][  T353]  ? copy_msghdr_from_user (net/socket.c:2635)
[   18.163147][  T353]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   18.163317][  T353]  ? move_addr_to_kernel (net/socket.c:258)
[   18.163460][  T353]  ___sys_sendmsg (net/socket.c:2752)
[   18.163602][  T353]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.163745][  T353]  ? copy_msghdr_from_user (net/socket.c:2603)
[   18.163892][  T353]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   18.164032][  T353]  __sys_sendmsg (net/socket.c:2784)
[   18.164169][  T353]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   18.164310][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.164449][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.164589][  T353]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.164731][  T353]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.164869][  T353]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.165006][  T353]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.165176][  T353] RIP: 0033:0x7f05d24ed08e
[   18.165318][  T353] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   18.165820][  T353] RSP: 002b:00007fff8c562850 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   18.166026][  T353] RAX: ffffffffffffffda RBX: 00007fff8c563008 RCX: 00007f05d24ed08e
[   18.166231][  T353] RDX: 0000000000000000 RSI: 00007fff8c562900 RDI: 0000000000000005
[   18.166436][  T353] RBP: 00007fff8c562860 R08: 0000000000000000 R09: 0000000000000000
[   18.166647][  T353] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac9
[   18.166855][  T353] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff8c562fc0
| [   18.215577][  T355] ------------[ cut here ]------------
| [   18.215751][  T355] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/355
| [   18.215992][  T355] Modules linked in: ipvtap ipvlan
| [   18.216403][  T355] Tainted: [W]=WARN
[   18.216516][  T355] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.216692][  T355] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.216865][  T355] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.217340][  T355] RSP: 0018:ffa0000000cc7a80 EFLAGS: 00010286
[   18.217521][  T355] RAX: 00000000ffffffa6 RBX: ff110000133ab1c0 RCX: 1ff4000000198f16
[   18.217727][  T355] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000133ab27c
[   18.217925][  T355] RBP: ff110000140ec000 R08: 1fe2200002675651 R09: ff11000009c42e80
[   18.218126][  T355] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   18.218333][  T355] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000140ec000
[   18.218541][  T355] FS:  00007f7c66b1d840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   18.218780][  T355] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.218951][  T355] CR2: 00007f7c66d1ec20 CR3: 00000000120d4002 CR4: 0000000000771ef0
[   18.219159][  T355] PKRU: 55555554
[   18.219261][  T355] Call Trace:
[   18.219362][  T355]  <TASK>
[   18.219432][  T355]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.219574][  T355]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.220329][  T355]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.220437][  T355]  register_netdevice (net/core/dev.c:11488)
[   18.220580][  T355]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.220812][  T355]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   18.220977][  T355]  register_netdev (net/core/dev.c:11552)
[   18.221112][  T355]  loopback_net_init (drivers/net/loopback.c:218)
[   18.221248][  T355]  ops_init (net/core/net_namespace.c:137)
[   18.221352][  T355]  setup_net (net/core/net_namespace.c:446)
[   18.221455][  T355]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.221592][  T355]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.221748][  T355]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.221885][  T355]  copy_net_ns (net/core/net_namespace.c:579)
[   18.222020][  T355]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.222160][  T355]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.222295][  T355]  ksys_unshare (kernel/fork.c:3243)
[   18.222432][  T355]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.222576][  T355]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.222715][  T355]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.222850][  T355]  ? __ia32_sys_open (fs/open.c:1374)
[   18.222986][  T355]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.223119][  T355]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.223252][  T355]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.223385][  T355]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.223530][  T355]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.223671][  T355]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.223837][  T355] RIP: 0033:0x7f7c66ddfbcb
[   18.223977][  T355] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.224460][  T355] RSP: 002b:00007ffeae0c4488 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.224671][  T355] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7c66ddfbcb
[   18.224872][  T355] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.225071][  T355] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.225278][  T355] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffeae0c66b0
[   18.225481][  T355] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffeae0c887e
| [   18.229825][  T355] ------------[ cut here ]------------
| [   18.229970][  T355] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/355
| [   18.230200][  T355] Modules linked in: ipvtap ipvlan
| [   18.230613][  T355] Tainted: [W]=WARN
[   18.230719][  T355] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.230883][  T355] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.231055][  T355] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.231536][  T355] RSP: 0018:ffa0000000cc7918 EFLAGS: 00010286
[   18.231708][  T355] RAX: 00000000ffffffa6 RBX: ff1100000ce0a580 RCX: 1ff4000000198ee9
[   18.231904][  T355] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce0a63c
[   18.232101][  T355] RBP: ff11000014121000 R08: 1fe22000019c14c9 R09: ff11000009c42e80
[   18.232304][  T355] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   18.232503][  T355] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000014121000
[   18.232703][  T355] FS:  00007f7c66b1d840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   18.232936][  T355] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.233100][  T355] CR2: 00007f7c66d1ec20 CR3: 00000000120d4002 CR4: 0000000000771ef0
[   18.233303][  T355] PKRU: 55555554
[   18.233400][  T355] Call Trace:
[   18.233505][  T355]  <TASK>
[   18.233573][  T355]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.233712][  T355]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.233845][  T355]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.233947][  T355]  register_netdevice (net/core/dev.c:11488)
[   18.234086][  T355]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.234251][  T355]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   18.234385][  T355]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   18.234521][  T355]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   18.234658][  T355]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   18.234793][  T355]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   18.234932][  T355]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   18.235065][  T355]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   18.235198][  T355]  ops_init (net/core/net_namespace.c:137)
[   18.235299][  T355]  setup_net (net/core/net_namespace.c:446)
[   18.235398][  T355]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.235536][  T355]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.235676][  T355]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.235816][  T355]  copy_net_ns (net/core/net_namespace.c:579)
[   18.235949][  T355]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.236083][  T355]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.236216][  T355]  ksys_unshare (kernel/fork.c:3243)
[   18.236347][  T355]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.236483][  T355]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.236618][  T355]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.237251][  T355]  ? __ia32_sys_open (fs/open.c:1374)
[   18.237386][  T355]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.237521][  T355]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.237706][  T355]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.237838][  T355]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.237970][  T355]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.238107][  T355]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.238272][  T355] RIP: 0033:0x7f7c66ddfbcb
[   18.238408][  T355] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.238938][  T355] RSP: 002b:00007ffeae0c4488 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.239143][  T355] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7c66ddfbcb
[   18.239341][  T355] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.239543][  T355] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.239794][  T355] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffeae0c66b0
[   18.239998][  T355] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffeae0c887e
| [   18.250367][  T355] ------------[ cut here ]------------
| [   18.250558][  T355] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/355
| [   18.250857][  T355] Modules linked in: ipvtap ipvlan
| [   18.251363][  T355] Tainted: [W]=WARN
[   18.251522][  T355] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.251755][  T355] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.251978][  T355] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.252512][  T355] RSP: 0018:ffa0000000cc78f8 EFLAGS: 00010286
[   18.252739][  T355] RAX: 00000000ffffffa6 RBX: ff110000133aa3c0 RCX: 1ff4000000198ee5
[   18.252986][  T355] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000133aa47c
[   18.253244][  T355] RBP: ff110000132d1000 R08: 1fe2200002675491 R09: ff11000009c42e80
[   18.253498][  T355] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   18.253760][  T355] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000132d1000
[   18.254013][  T355] FS:  00007f7c66b1d840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   18.254299][  T355] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.254527][  T355] CR2: 00007fc9bab61000 CR3: 00000000120d4004 CR4: 0000000000771ef0
[   18.254790][  T355] PKRU: 55555554
[   18.254939][  T355] Call Trace:
[   18.255088][  T355]  <TASK>
[   18.255206][  T355]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.255389][  T355]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.255581][  T355]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.255749][  T355]  register_netdevice (net/core/dev.c:11488)
[   18.255934][  T355]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.256150][  T355]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   18.256334][  T355]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   18.256527][  T355]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   18.256722][  T355]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   18.256907][  T355]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   18.257095][  T355]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   18.257280][  T355]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   18.257462][  T355]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   18.257670][  T355]  vti_init_net (net/ipv4/ip_vti.c:517)
[   18.257856][  T355]  ops_init (net/core/net_namespace.c:137)
[   18.258009][  T355]  setup_net (net/core/net_namespace.c:446)
[   18.258160][  T355]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.258340][  T355]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.258534][  T355]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.258736][  T355]  copy_net_ns (net/core/net_namespace.c:579)
[   18.258923][  T355]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.259109][  T355]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.259293][  T355]  ksys_unshare (kernel/fork.c:3243)
[   18.259485][  T355]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.259680][  T355]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.259866][  T355]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.260051][  T355]  ? __ia32_sys_open (fs/open.c:1374)
[   18.260237][  T355]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.260419][  T355]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.260611][  T355]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.260805][  T355]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.260987][  T355]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.261170][  T355]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.261386][  T355] RIP: 0033:0x7f7c66ddfbcb
[   18.261582][  T355] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.262113][  T355] RSP: 002b:00007ffeae0c4488 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.262363][  T355] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7c66ddfbcb
[   18.262620][  T355] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.262879][  T355] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.263127][  T355] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffeae0c66b0
[   18.263377][  T355] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffeae0c887e
| [   18.267976][  T355] ------------[ cut here ]------------
| [   18.268160][  T355] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/355
| [   18.268442][  T355] Modules linked in: ipvtap ipvlan
| [   18.268961][  T355] Tainted: [W]=WARN
[   18.269109][  T355] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.269323][  T355] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.269555][  T355] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.270085][  T355] RSP: 0018:ffa0000000cc7a78 EFLAGS: 00010286
[   18.270301][  T355] RAX: 00000000ffffffa6 RBX: ff1100000a132e40 RCX: 1ff4000000198f15
[   18.270557][  T355] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a132efc
[   18.270816][  T355] RBP: ff1100000a3b4000 R08: 1fe22000014265e1 R09: ff11000009c42e80
[   18.271062][  T355] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   18.271309][  T355] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a3b4000
[   18.271573][  T355] FS:  00007f7c66b1d840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   18.271868][  T355] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.272083][  T355] CR2: 00007fc9bab61000 CR3: 00000000120d4004 CR4: 0000000000771ef0
[   18.272332][  T355] PKRU: 55555554
[   18.272486][  T355] Call Trace:
[   18.272634][  T355]  <TASK>
[   18.272774][  T355]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.272960][  T355]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.273142][  T355]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.273293][  T355]  register_netdevice (net/core/dev.c:11488)
[   18.273487][  T355]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.273715][  T355]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.273901][  T355]  register_netdev (net/core/dev.c:11552)
[   18.274088][  T355]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   18.274271][  T355]  ops_init (net/core/net_namespace.c:137)
[   18.274422][  T355]  setup_net (net/core/net_namespace.c:446)
[   18.274584][  T355]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.274778][  T355]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.274970][  T355]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.275153][  T355]  copy_net_ns (net/core/net_namespace.c:579)
[   18.275336][  T355]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.275528][  T355]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.275726][  T355]  ksys_unshare (kernel/fork.c:3243)
[   18.275908][  T355]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.276089][  T355]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.276270][  T355]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.276453][  T355]  ? __ia32_sys_open (fs/open.c:1374)
[   18.276643][  T355]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.276839][  T355]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.277021][  T355]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.277202][  T355]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.277383][  T355]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.277574][  T355]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.277799][  T355] RIP: 0033:0x7f7c66ddfbcb
[   18.277987][  T355] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.278515][  T355] RSP: 002b:00007ffeae0c4488 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.278779][  T355] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7c66ddfbcb
[   18.279028][  T355] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.279277][  T355] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.279525][  T355] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffeae0c66b0
[   18.279785][  T355] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffeae0c887e
| [   18.291557][  T355] ------------[ cut here ]------------
| [   18.291752][  T355] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/355
| [   18.292032][  T355] Modules linked in: ipvtap ipvlan
| [   18.292542][  T355] Tainted: [W]=WARN
[   18.292704][  T355] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.292920][  T355] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.293141][  T355] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.293680][  T355] RSP: 0018:ffa0000000cc7a68 EFLAGS: 00010286
[   18.293895][  T355] RAX: 00000000ffffffa6 RBX: ff11000014139380 RCX: 1ff4000000198f13
[   18.294141][  T355] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001413943c
[   18.294388][  T355] RBP: ff1100000f294000 R08: 1fe2200002827289 R09: ff11000009c42e80
[   18.294643][  T355] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   18.294907][  T355] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f294000
[   18.295154][  T355] FS:  00007f7c66b1d840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   18.295434][  T355] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.295668][  T355] CR2: 00007fc9bab61000 CR3: 00000000120d4004 CR4: 0000000000771ef0
[   18.295918][  T355] PKRU: 55555554
[   18.296065][  T355] Call Trace:
[   18.296212][  T355]  <TASK>
[   18.296328][  T355]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.296518][  T355]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.296710][  T355]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.296860][  T355]  register_netdevice (net/core/dev.c:11488)
[   18.297042][  T355]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.297260][  T355]  register_netdev (net/core/dev.c:11552)
[   18.297442][  T355]  sit_init_net (net/ipv6/sit.c:1860)
[   18.297629][  T355]  ops_init (net/core/net_namespace.c:137)
[   18.297792][  T355]  setup_net (net/core/net_namespace.c:446)
[   18.297942][  T355]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.298121][  T355]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.298304][  T355]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.298495][  T355]  copy_net_ns (net/core/net_namespace.c:579)
[   18.298692][  T355]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.298875][  T355]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.299055][  T355]  ksys_unshare (kernel/fork.c:3243)
[   18.299235][  T355]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.299417][  T355]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.299606][  T355]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.299803][  T355]  ? __ia32_sys_open (fs/open.c:1374)
[   18.299985][  T355]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.300165][  T355]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.300347][  T355]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.300536][  T355]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.300729][  T355]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.300914][  T355]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.301127][  T355] RIP: 0033:0x7f7c66ddfbcb
[   18.301316][  T355] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.301856][  T355] RSP: 002b:00007ffeae0c4488 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.302103][  T355] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7c66ddfbcb
[   18.302349][  T355] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.302603][  T355] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.302859][  T355] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffeae0c66b0
[   18.303103][  T355] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffeae0c887e
| [   18.308280][  T355] ------------[ cut here ]------------
| [   18.308463][  T355] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/355
| [   18.308766][  T355] Modules linked in: ipvtap ipvlan
| [   18.309271][  T355] Tainted: [W]=WARN
[   18.309418][  T355] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.309639][  T355] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.309875][  T355] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.310388][  T355] RSP: 0018:ffa0000000cc7a78 EFLAGS: 00010286
[   18.310607][  T355] RAX: 00000000ffffffa6 RBX: ff1100000bece3c0 RCX: 1ff4000000198f15
[   18.310862][  T355] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bece47c
[   18.311105][  T355] RBP: ff110000141ac000 R08: 1fe22000017d9c91 R09: ff11000009c42e80
[   18.311347][  T355] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   18.311594][  T355] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000141ac000
[   18.311851][  T355] FS:  00007f7c66b1d840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   18.312129][  T355] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.312339][  T355] CR2: 00007fc9bab61000 CR3: 00000000120d4004 CR4: 0000000000771ef0
[   18.312632][  T355] PKRU: 55555554
[   18.312816][  T355] Call Trace:
[   18.312963][  T355]  <TASK>
[   18.313077][  T355]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.313256][  T355]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.313437][  T355]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.313592][  T355]  register_netdevice (net/core/dev.c:11488)
[   18.313828][  T355]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.314042][  T355]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.314222][  T355]  register_netdev (net/core/dev.c:11552)
[   18.314401][  T355]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   18.314588][  T355]  ops_init (net/core/net_namespace.c:137)
[   18.314750][  T355]  setup_net (net/core/net_namespace.c:446)
[   18.314897][  T355]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.315098][  T355]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.315298][  T355]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.315486][  T355]  copy_net_ns (net/core/net_namespace.c:579)
[   18.315693][  T355]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.315882][  T355]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.316067][  T355]  ksys_unshare (kernel/fork.c:3243)
[   18.316250][  T355]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.316427][  T355]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.316612][  T355]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.316817][  T355]  ? __ia32_sys_open (fs/open.c:1374)
[   18.317000][  T355]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.317182][  T355]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.317361][  T355]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.317546][  T355]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.317733][  T355]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.317933][  T355]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.318144][  T355] RIP: 0033:0x7f7c66ddfbcb
[   18.318328][  T355] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.318882][  T355] RSP: 002b:00007ffeae0c4488 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.319132][  T355] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7c66ddfbcb
[   18.319384][  T355] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.319634][  T355] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.319889][  T355] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffeae0c66b0
[   18.320126][  T355] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffeae0c887e
| [   18.345127][  T356] ------------[ cut here ]------------
| [   18.345298][  T356] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/356
| [   18.345587][  T356] Modules linked in: ipvtap ipvlan
| [   18.346514][  T356] Tainted: [W]=WARN
[   18.346622][  T356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.346802][  T356] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.346983][  T356] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.347486][  T356] RSP: 0018:ffa0000000cd7020 EFLAGS: 00010286
[   18.347669][  T356] RAX: 00000000ffffffa6 RBX: ff110000104cb540 RCX: 1ff400000019adca
[   18.347882][  T356] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104cb5fc
[   18.348095][  T356] RBP: ff110000140ec000 R08: 1fe22000020996c1 R09: ff11000009c40b58
[   18.348306][  T356] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   18.348528][  T356] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   18.348736][  T356] FS:  00007ffa59ef2840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   18.348967][  T356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.349128][  T356] CR2: 00007ffa5a1c21a0 CR3: 000000001364c004 CR4: 0000000000771ef0
[   18.349323][  T356] PKRU: 55555554
[   18.349437][  T356] Call Trace:
[   18.349550][  T356]  <TASK>
[   18.349622][  T356]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.349772][  T356]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.349877][  T356]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   18.350285][  T356]  __dev_notify_flags (net/core/dev.c:9787)
[   18.350430][  T356]  ? netif_change_name (net/core/dev.c:1495)
[   18.350564][  T356]  ? __dev_change_flags (net/core/dev.c:9752)
[   18.350698][  T356]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   18.350824][  T356]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.350956][  T356]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   18.351088][  T356]  netif_change_flags (net/core/dev.c:9820)
[   18.351221][  T356]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   18.351367][  T356]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   18.351511][  T356]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   18.351660][  T356]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   18.351832][  T356]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.351966][  T356]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   18.352099][  T356]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   18.352229][  T356]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   18.352362][  T356]  ? __kernel_text_address (kernel/extable.c:79)
[   18.352497][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.352629][  T356]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.352771][  T356]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   18.352904][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.353034][  T356]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   18.353162][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.353293][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.353428][  T356]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   18.353567][  T356]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   18.353703][  T356]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   18.353835][  T356]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   18.353976][  T356]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   18.354108][  T356]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   18.354241][  T356]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   18.354373][  T356]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.354506][  T356]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.354635][  T356]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.354772][  T356]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   18.354909][  T356]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.355042][  T356]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.355171][  T356]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.355303][  T356]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.355441][  T356]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.355583][  T356]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.355731][  T356]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   18.355860][  T356]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   18.355989][  T356]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.356117][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.356249][  T356]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.356377][  T356]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.356511][  T356]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   18.356650][  T356]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.356791][  T356]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   18.356929][  T356]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   18.357061][  T356]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   18.357192][  T356]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.357323][  T356]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   18.357502][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.357637][  T356]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   18.357778][  T356]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   18.357917][  T356]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   18.358055][  T356]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   18.358186][  T356]  ? copy_msghdr_from_user (net/socket.c:2635)
[   18.358315][  T356]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   18.358493][  T356]  ? move_addr_to_kernel (net/socket.c:258)
[   18.358626][  T356]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   18.358760][  T356]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   18.358890][  T356]  ___sys_sendmsg (net/socket.c:2752)
[   18.359021][  T356]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   18.359181][  T356]  ? copy_msghdr_from_user (net/socket.c:2603)
[   18.359330][  T356]  __sys_sendmsg (net/socket.c:2784)
[   18.359460][  T356]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   18.359597][  T356]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   18.359770][  T356]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   18.359899][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.360031][  T356]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.360166][  T356]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.360296][  T356]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.360424][  T356]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.360588][  T356] RIP: 0033:0x7ffa5a12c08e
[   18.360730][  T356] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   18.361197][  T356] RSP: 002b:00007fffbf11d870 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   18.361392][  T356] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ffa5a12c08e
[   18.361588][  T356] RDX: 0000000000000000 RSI: 00007fffbf11d920 RDI: 0000000000000005
[   18.361786][  T356] RBP: 00007fffbf11d880 R08: 0000000000000000 R09: 0000000000000000
[   18.361989][  T356] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac9
[   18.362181][  T356] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffbf11dff0
| [   18.495151][  T359] ------------[ cut here ]------------
| [   18.495329][  T359] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/359
| [   18.495593][  T359] Modules linked in: ipvtap ipvlan
| [   18.496166][  T359] Tainted: [W]=WARN
[   18.496272][  T359] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.496446][  T359] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.496635][  T359] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.497140][  T359] RSP: 0018:ffa0000000cf70b0 EFLAGS: 00010286
[   18.497346][  T359] RAX: 00000000ffffffa6 RBX: ff1100000ba25e00 RCX: 1ff400000019eddc
[   18.497561][  T359] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba25ebc
[   18.497771][  T359] RBP: ff11000007edc000 R08: 1fe2200001744bd9 R09: ff1100000fdf0b80
[   18.497979][  T359] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   18.498186][  T359] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   18.498399][  T359] FS:  00007f0f27dd9840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   18.498657][  T359] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.498832][  T359] CR2: 0000000000445730 CR3: 000000001069d006 CR4: 0000000000771ef0
[   18.499052][  T359] PKRU: 55555554
[   18.499157][  T359] Call Trace:
[   18.499261][  T359]  <TASK>
[   18.499334][  T359]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.499475][  T359]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   18.499622][  T359]  notifier_call_chain (kernel/notifier.c:85)
[   18.499771][  T359]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   18.499910][  T359]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.500049][  T359]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   18.500572][  T359]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   18.500685][  T359]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   18.500862][  T359]  ? ida_destroy (lib/idr.c:623)
[   18.501020][  T359]  netdev_upper_dev_link (net/core/dev.c:8972)
[   18.501161][  T359]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   18.501306][  T359] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   18.501451][  T359]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   18.501602][  T359]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   18.501752][  T359] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   18.501893][  T359]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   18.502035][  T359]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   18.502175][  T359]  ? __dev_get_by_name (net/core/dev.c:883)
[   18.502313][  T359]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   18.502458][  T359]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   18.502611][  T359]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   18.502759][  T359]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.502902][  T359]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.503044][  T359]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.503184][  T359]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   18.503325][  T359]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.503470][  T359]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.503619][  T359]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.503765][  T359]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   18.503907][  T359]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   18.504047][  T359]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.504186][  T359]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.504327][  T359]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.504466][  T359]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.504629][  T359]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   18.504779][  T359]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.504920][  T359]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   18.505062][  T359]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   18.505200][  T359]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   18.505340][  T359]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.505485][  T359]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   18.505627][  T359]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.505771][  T359]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   18.505911][  T359]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   18.506050][  T359]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   18.506189][  T359]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   18.506329][  T359]  ? copy_msghdr_from_user (net/socket.c:2635)
[   18.506468][  T359]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   18.506646][  T359]  ? move_addr_to_kernel (net/socket.c:258)
[   18.506796][  T359]  ___sys_sendmsg (net/socket.c:2752)
[   18.506936][  T359]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.507076][  T359]  ? copy_msghdr_from_user (net/socket.c:2603)
[   18.507225][  T359]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   18.507366][  T359]  __sys_sendmsg (net/socket.c:2784)
[   18.507511][  T359]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   18.507660][  T359]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.507802][  T359]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.507942][  T359]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.508084][  T359]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.508227][  T359]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.508367][  T359]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.508545][  T359] RIP: 0033:0x7f0f2801308e
[   18.508696][  T359] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   18.509189][  T359] RSP: 002b:00007ffcb5ae5070 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   18.509399][  T359] RAX: ffffffffffffffda RBX: 00007ffcb5ae5828 RCX: 00007f0f2801308e
[   18.509610][  T359] RDX: 0000000000000000 RSI: 00007ffcb5ae5120 RDI: 0000000000000005
[   18.509842][  T359] RBP: 00007ffcb5ae5080 R08: 0000000000000000 R09: 0000000000000000
[   18.510049][  T359] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac9
[   18.510257][  T359] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcb5ae57e0
| [   18.511900][  T359] ------------[ cut here ]------------
| [   18.512031][  T359] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/359
| [   18.512257][  T359] Modules linked in: ipvtap ipvlan
| [   18.512756][  T359] Tainted: [W]=WARN
[   18.512856][  T359] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.513022][  T359] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.513207][  T359] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.513687][  T359] RSP: 0018:ffa0000000cf71b0 EFLAGS: 00010286
[   18.513853][  T359] RAX: 00000000ffffffa6 RBX: ff1100000ce0bc40 RCX: 1ff400000019edfc
[   18.514050][  T359] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce0bcfc
[   18.514247][  T359] RBP: ff110000137d2000 R08: 1fe22000019c17a1 R09: ff1100000fdf0b80
[   18.514445][  T359] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   18.514656][  T359] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   18.514854][  T359] FS:  00007f0f27dd9840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   18.515085][  T359] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.515251][  T359] CR2: 0000000000445730 CR3: 000000001069d006 CR4: 0000000000771ef0
[   18.515464][  T359] PKRU: 55555554
[   18.515573][  T359] Call Trace:
[   18.515678][  T359]  <TASK>
[   18.515747][  T359]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.515881][  T359]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.515982][  T359]  ? ida_destroy (lib/idr.c:623)
[   18.516116][  T359]  __dev_notify_flags (net/core/dev.c:9787)
[   18.516250][  T359]  ? netif_change_name (net/core/dev.c:1495)
[   18.516383][  T359]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   18.516521][  T359]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   18.516707][  T359]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   18.516874][  T359]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   18.517007][  T359]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   18.517141][  T359]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   18.517275][  T359]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   18.517408][  T359]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   18.517549][  T359]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   18.517696][  T359]  ? __dev_get_by_name (net/core/dev.c:883)
[   18.517830][  T359]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   18.517979][  T359]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   18.518143][  T359]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   18.518278][  T359]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.518411][  T359]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.518550][  T359]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.518690][  T359]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   18.518824][  T359]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.518962][  T359]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.519098][  T359]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.519231][  T359]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   18.519364][  T359]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   18.519503][  T359]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.519636][  T359]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.519780][  T359]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.519913][  T359]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.520047][  T359]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   18.520180][  T359]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.520314][  T359]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   18.520451][  T359]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   18.520589][  T359]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   18.520744][  T359]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.520880][  T359]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   18.521015][  T359]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.521157][  T359]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   18.521291][  T359]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   18.521426][  T359]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   18.521567][  T359]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   18.521709][  T359]  ? copy_msghdr_from_user (net/socket.c:2635)
[   18.521844][  T359]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   18.522008][  T359]  ? move_addr_to_kernel (net/socket.c:258)
[   18.522145][  T359]  ___sys_sendmsg (net/socket.c:2752)
[   18.522278][  T359]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.522411][  T359]  ? copy_msghdr_from_user (net/socket.c:2603)
[   18.522574][  T359]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   18.522718][  T359]  __sys_sendmsg (net/socket.c:2784)
[   18.522854][  T359]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   18.522991][  T359]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.523126][  T359]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.523260][  T359]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.523395][  T359]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.523535][  T359]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.523673][  T359]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.523841][  T359] RIP: 0033:0x7f0f2801308e
[   18.523979][  T359] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   18.524453][  T359] RSP: 002b:00007ffcb5ae5070 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   18.524665][  T359] RAX: ffffffffffffffda RBX: 00007ffcb5ae5828 RCX: 00007f0f2801308e
[   18.524867][  T359] RDX: 0000000000000000 RSI: 00007ffcb5ae5120 RDI: 0000000000000005
[   18.525070][  T359] RBP: 00007ffcb5ae5080 R08: 0000000000000000 R09: 0000000000000000
[   18.525269][  T359] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac9
[   18.525466][  T359] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcb5ae57e0
| [   18.576202][  T361] ------------[ cut here ]------------
| [   18.576379][  T361] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/361
| [   18.576612][  T361] Modules linked in: ipvtap ipvlan
| [   18.577066][  T361] Tainted: [W]=WARN
[   18.577165][  T361] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.577332][  T361] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.577513][  T361] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.577987][  T361] RSP: 0018:ffa0000000b77a80 EFLAGS: 00010286
[   18.578155][  T361] RAX: 00000000ffffffa6 RBX: ff110000104d4040 RCX: 1ff400000016ef16
[   18.578350][  T361] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104d40fc
[   18.578570][  T361] RBP: ff110000137c9000 R08: 1fe220000209a821 R09: ff1100000e79ae80
[   18.579168][  T361] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   18.579366][  T361] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000137c9000
[   18.579588][  T361] FS:  00007f41b350f840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   18.579824][  T361] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.579989][  T361] CR2: 00007f41b3716430 CR3: 000000000f003003 CR4: 0000000000771ef0
[   18.580187][  T361] PKRU: 55555554
[   18.580285][  T361] Call Trace:
[   18.580386][  T361]  <TASK>
[   18.580454][  T361]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.580589][  T361]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.580725][  T361]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.580825][  T361]  register_netdevice (net/core/dev.c:11488)
[   18.580957][  T361]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.581120][  T361]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   18.581252][  T361]  register_netdev (net/core/dev.c:11552)
[   18.581394][  T361]  loopback_net_init (drivers/net/loopback.c:218)
[   18.581533][  T361]  ops_init (net/core/net_namespace.c:137)
[   18.581634][  T361]  setup_net (net/core/net_namespace.c:446)
[   18.581739][  T361]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.581875][  T361]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.582018][  T361]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.582151][  T361]  copy_net_ns (net/core/net_namespace.c:579)
[   18.582285][  T361]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.582419][  T361]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.582563][  T361]  ksys_unshare (kernel/fork.c:3243)
[   18.582700][  T361]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.582831][  T361]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.582961][  T361]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.583094][  T361]  ? __ia32_sys_open (fs/open.c:1374)
[   18.583227][  T361]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.583358][  T361]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.583492][  T361]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.583622][  T361]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.583759][  T361]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.583890][  T361]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.584053][  T361] RIP: 0033:0x7f41b37d1bcb
[   18.584189][  T361] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.584660][  T361] RSP: 002b:00007ffd7c73b948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.584857][  T361] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f41b37d1bcb
[   18.585050][  T361] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.585244][  T361] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.585437][  T361] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd7c73db70
[   18.585639][  T361] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd7c73e87e
| [   18.594558][  T361] ------------[ cut here ]------------
| [   18.594724][  T361] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/361
| [   18.594952][  T361] Modules linked in: ipvtap ipvlan
| [   18.595353][  T361] Tainted: [W]=WARN
[   18.595453][  T361] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.595624][  T361] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.595797][  T361] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.596260][  T361] RSP: 0018:ffa0000000b77918 EFLAGS: 00010286
[   18.596422][  T361] RAX: 00000000ffffffa6 RBX: ff1100000a132ac0 RCX: 1ff400000016eee9
[   18.596621][  T361] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a132b7c
[   18.596820][  T361] RBP: ff110000137ec000 R08: 1fe2200001426571 R09: ff1100000e79ae80
[   18.597015][  T361] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   18.597209][  T361] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000137ec000
[   18.597407][  T361] FS:  00007f41b350f840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   18.597642][  T361] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.597810][  T361] CR2: 00007f41b3716430 CR3: 000000000f003003 CR4: 0000000000771ef0
[   18.598005][  T361] PKRU: 55555554
[   18.598102][  T361] Call Trace:
[   18.598200][  T361]  <TASK>
[   18.598270][  T361]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.598399][  T361]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.598547][  T361]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.598647][  T361]  register_netdevice (net/core/dev.c:11488)
[   18.598786][  T361]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.598950][  T361]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   18.599081][  T361]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   18.599213][  T361]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   18.599342][  T361]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   18.599471][  T361]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   18.599607][  T361]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   18.599745][  T361]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   18.599877][  T361]  ops_init (net/core/net_namespace.c:137)
[   18.599977][  T361]  setup_net (net/core/net_namespace.c:446)
[   18.600076][  T361]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.600206][  T361]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.600335][  T361]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.600468][  T361]  copy_net_ns (net/core/net_namespace.c:579)
[   18.600604][  T361]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.600741][  T361]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.600871][  T361]  ksys_unshare (kernel/fork.c:3243)
[   18.601000][  T361]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.601132][  T361]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.601263][  T361]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.601394][  T361]  ? __ia32_sys_open (fs/open.c:1374)
[   18.601528][  T361]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.601662][  T361]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.601791][  T361]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.601920][  T361]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.602052][  T361]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.602182][  T361]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.602343][  T361] RIP: 0033:0x7f41b37d1bcb
[   18.602483][  T361] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.602953][  T361] RSP: 002b:00007ffd7c73b948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.603181][  T361] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f41b37d1bcb
[   18.603373][  T361] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.603572][  T361] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.603769][  T361] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd7c73db70
[   18.603963][  T361] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd7c73e87e
| [   18.608240][  T361] ------------[ cut here ]------------
| [   18.608381][  T361] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/361
| [   18.608611][  T361] Modules linked in: ipvtap ipvlan
| [   18.609216][  T361] Tainted: [W]=WARN
[   18.609315][  T361] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.609486][  T361] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.609662][  T361] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.610125][  T361] RSP: 0018:ffa0000000b778f8 EFLAGS: 00010286
[   18.610290][  T361] RAX: 00000000ffffffa6 RBX: ff11000012979700 RCX: 1ff400000016eee5
[   18.610493][  T361] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000129797bc
[   18.610693][  T361] RBP: ff11000014311000 R08: 1fe220000252f2f9 R09: ff1100000e79ae80
[   18.610887][  T361] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   18.611082][  T361] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000014311000
[   18.611280][  T361] FS:  00007f41b350f840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   18.611514][  T361] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.611684][  T361] CR2: 00007f41b3716430 CR3: 000000000f003003 CR4: 0000000000771ef0
[   18.611880][  T361] PKRU: 55555554
[   18.611979][  T361] Call Trace:
[   18.612076][  T361]  <TASK>
[   18.612147][  T361]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.612279][  T361]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.612409][  T361]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.612515][  T361]  register_netdevice (net/core/dev.c:11488)
[   18.612646][  T361]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.612811][  T361]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   18.612944][  T361]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   18.613079][  T361]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   18.613209][  T361]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   18.613341][  T361]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   18.613471][  T361]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   18.613608][  T361]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   18.613742][  T361]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   18.613873][  T361]  vti_init_net (net/ipv4/ip_vti.c:517)
[   18.614006][  T361]  ops_init (net/core/net_namespace.c:137)
[   18.614109][  T361]  setup_net (net/core/net_namespace.c:446)
[   18.614207][  T361]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.614336][  T361]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.614466][  T361]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.614604][  T361]  copy_net_ns (net/core/net_namespace.c:579)
[   18.614740][  T361]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.614873][  T361]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.615005][  T361]  ksys_unshare (kernel/fork.c:3243)
[   18.615135][  T361]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.615265][  T361]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.615396][  T361]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.615535][  T361]  ? __ia32_sys_open (fs/open.c:1374)
[   18.615671][  T361]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.615801][  T361]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.615934][  T361]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.616066][  T361]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.616196][  T361]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.616361][  T361]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.616528][  T361] RIP: 0033:0x7f41b37d1bcb
[   18.616668][  T361] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.617135][  T361] RSP: 002b:00007ffd7c73b948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.617331][  T361] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f41b37d1bcb
[   18.617531][  T361] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.617729][  T361] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.617925][  T361] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd7c73db70
[   18.618121][  T361] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd7c73e87e
| [   18.622295][  T361] ------------[ cut here ]------------
| [   18.622437][  T361] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/361
| [   18.622670][  T361] Modules linked in: ipvtap ipvlan
| [   18.623154][  T361] Tainted: [W]=WARN
[   18.623253][  T361] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.623414][  T361] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.623684][  T361] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.624239][  T361] RSP: 0018:ffa0000000b77a78 EFLAGS: 00010286
[   18.624413][  T361] RAX: 00000000ffffffa6 RBX: ff110000104ca740 RCX: 1ff400000016ef15
[   18.624614][  T361] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104ca7fc
[   18.624901][  T361] RBP: ff11000014331000 R08: 1fe2200002099501 R09: ff1100000e79ae80
[   18.625099][  T361] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   18.625294][  T361] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000014331000
[   18.625590][  T361] FS:  00007f41b350f840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   18.625821][  T361] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.625985][  T361] CR2: 00007f41b3716430 CR3: 000000000f003003 CR4: 0000000000771ef0
[   18.626267][  T361] PKRU: 55555554
[   18.626366][  T361] Call Trace:
[   18.626473][  T361]  <TASK>
[   18.626545][  T361]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.626765][  T361]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.626894][  T361]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.626992][  T361]  register_netdevice (net/core/dev.c:11488)
[   18.627126][  T361]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.627380][  T361]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.627516][  T361]  register_netdev (net/core/dev.c:11552)
[   18.627646][  T361]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   18.627781][  T361]  ops_init (net/core/net_namespace.c:137)
[   18.627965][  T361]  setup_net (net/core/net_namespace.c:446)
[   18.628063][  T361]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.628193][  T361]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.628321][  T361]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.628451][  T361]  copy_net_ns (net/core/net_namespace.c:579)
[   18.628699][  T361]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.628832][  T361]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.628961][  T361]  ksys_unshare (kernel/fork.c:3243)
[   18.629091][  T361]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.629308][  T361]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.629437][  T361]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.629571][  T361]  ? __ia32_sys_open (fs/open.c:1374)
[   18.629792][  T361]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.629921][  T361]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.630049][  T361]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.630177][  T361]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.630308][  T361]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.630525][  T361]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.630688][  T361] RIP: 0033:0x7f41b37d1bcb
[   18.630822][  T361] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.631369][  T361] RSP: 002b:00007ffd7c73b948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.631660][  T361] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f41b37d1bcb
[   18.631851][  T361] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.632041][  T361] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.632318][  T361] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd7c73db70
[   18.632517][  T361] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd7c73e87e
| [   18.638705][  T361] ------------[ cut here ]------------
| [   18.638842][  T361] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/361
| [   18.639064][  T361] Modules linked in: ipvtap ipvlan
| [   18.639464][  T361] Tainted: [W]=WARN
[   18.639570][  T361] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.639740][  T361] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.639907][  T361] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.640366][  T361] RSP: 0018:ffa0000000b77a68 EFLAGS: 00010286
[   18.640533][  T361] RAX: 00000000ffffffa6 RBX: ff1100000ce0aac0 RCX: 1ff400000016ef13
[   18.640784][  T361] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce0ab7c
[   18.640978][  T361] RBP: ff11000014354000 R08: 1fe22000019c1571 R09: ff1100000e79ae80
[   18.641173][  T361] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   18.641370][  T361] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000014354000
[   18.641575][  T361] FS:  00007f41b350f840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   18.641858][  T361] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.642022][  T361] CR2: 00007f41b3716430 CR3: 000000000f003003 CR4: 0000000000771ef0
[   18.642217][  T361] PKRU: 55555554
[   18.642313][  T361] Call Trace:
[   18.642409][  T361]  <TASK>
[   18.642483][  T361]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.642615][  T361]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.642800][  T361]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.642953][  T361]  register_netdevice (net/core/dev.c:11488)
[   18.643084][  T361]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.643248][  T361]  register_netdev (net/core/dev.c:11552)
[   18.643378][  T361]  sit_init_net (net/ipv6/sit.c:1860)
[   18.643514][  T361]  ops_init (net/core/net_namespace.c:137)
[   18.643614][  T361]  setup_net (net/core/net_namespace.c:446)
[   18.643766][  T361]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.643896][  T361]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.644025][  T361]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.644157][  T361]  copy_net_ns (net/core/net_namespace.c:579)
[   18.644287][  T361]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.644422][  T361]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.644559][  T361]  ksys_unshare (kernel/fork.c:3243)
[   18.644747][  T361]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.644876][  T361]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.645005][  T361]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.645136][  T361]  ? __ia32_sys_open (fs/open.c:1374)
[   18.645268][  T361]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.645399][  T361]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.645533][  T361]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.645715][  T361]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.645844][  T361]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.645974][  T361]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.646135][  T361] RIP: 0033:0x7f41b37d1bcb
[   18.646270][  T361] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.646792][  T361] RSP: 002b:00007ffd7c73b948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.646988][  T361] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f41b37d1bcb
[   18.647182][  T361] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.647376][  T361] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.647574][  T361] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd7c73db70
[   18.647821][  T361] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd7c73e87e
| [   18.652340][  T361] ------------[ cut here ]------------
| [   18.652523][  T361] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/361
| [   18.652823][  T361] Modules linked in: ipvtap ipvlan
| [   18.653319][  T361] Tainted: [W]=WARN
[   18.653464][  T361] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.653695][  T361] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.653913][  T361] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.654423][  T361] RSP: 0018:ffa0000000b77a78 EFLAGS: 00010286
[   18.654644][  T361] RAX: 00000000ffffffa6 RBX: ff11000012abb380 RCX: 1ff400000016ef15
[   18.654909][  T361] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012abb43c
[   18.655150][  T361] RBP: ff110000141d1000 R08: 1fe2200002557689 R09: ff1100000e79ae80
[   18.655393][  T361] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   18.655645][  T361] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000141d1000
[   18.655904][  T361] FS:  00007f41b350f840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   18.656183][  T361] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.656395][  T361] CR2: 00007fcb17fcb2a0 CR3: 000000000f003001 CR4: 0000000000771ef0
[   18.656646][  T361] PKRU: 55555554
[   18.656806][  T361] Call Trace:
[   18.656951][  T361]  <TASK>
[   18.657064][  T361]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.657245][  T361]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.657422][  T361]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.657577][  T361]  register_netdevice (net/core/dev.c:11488)
[   18.657769][  T361]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.657979][  T361]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.658160][  T361]  register_netdev (net/core/dev.c:11552)
[   18.658339][  T361]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   18.658525][  T361]  ops_init (net/core/net_namespace.c:137)
[   18.658692][  T361]  setup_net (net/core/net_namespace.c:446)
[   18.658838][  T361]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.659015][  T361]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.659192][  T361]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.659370][  T361]  copy_net_ns (net/core/net_namespace.c:579)
[   18.659560][  T361]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.659755][  T361]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.659932][  T361]  ksys_unshare (kernel/fork.c:3243)
[   18.660108][  T361]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.660287][  T361]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.660464][  T361]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.660664][  T361]  ? __ia32_sys_open (fs/open.c:1374)
[   18.660845][  T361]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.661021][  T361]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.661196][  T361]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.661373][  T361]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.661557][  T361]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.661751][  T361]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.661961][  T361] RIP: 0033:0x7f41b37d1bcb
[   18.662143][  T361] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.662668][  T361] RSP: 002b:00007ffd7c73b948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.662913][  T361] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f41b37d1bcb
[   18.663155][  T361] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.663395][  T361] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.663642][  T361] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd7c73db70
[   18.663898][  T361] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd7c73e87e
| [   18.691684][  T362] ------------[ cut here ]------------
| [   18.691883][  T362] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/362
| [   18.692150][  T362] Modules linked in: ipvtap ipvlan
| [   18.693341][  T362] Tainted: [W]=WARN
[   18.693530][  T362] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.693776][  T362] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.693991][  T362] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.694551][  T362] RSP: 0018:ffa0000000c07020 EFLAGS: 00010286
[   18.694771][  T362] RAX: 00000000ffffffa6 RBX: ff11000014139a80 RCX: 1ff4000000180dca
[   18.695007][  T362] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000014139b3c
[   18.695263][  T362] RBP: ff110000137c9000 R08: 1fe2200002827369 R09: ff1100000e79d158
[   18.695532][  T362] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   18.695790][  T362] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   18.696027][  T362] FS:  00007f8052447840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   18.696295][  T362] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.696511][  T362] CR2: 000000000d90c988 CR3: 0000000004c04003 CR4: 0000000000771ef0
[   18.696781][  T362] PKRU: 55555554
[   18.696923][  T362] Call Trace:
[   18.697064][  T362]  <TASK>
[   18.697177][  T362]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.697355][  T362]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.697521][  T362]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   18.697714][  T362]  __dev_notify_flags (net/core/dev.c:9787)
[   18.697913][  T362]  ? netif_change_name (net/core/dev.c:1495)
[   18.698087][  T362]  ? __dev_change_flags (net/core/dev.c:9752)
[   18.698262][  T362]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   18.698461][  T362]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.698646][  T362]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   18.698837][  T362]  netif_change_flags (net/core/dev.c:9820)
[   18.699017][  T362]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   18.699209][  T362]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   18.699388][  T362]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   18.699594][  T362]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   18.699815][  T362]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.699990][  T362]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   18.700167][  T362]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   18.700359][  T362]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   18.700555][  T362]  ? __kernel_text_address (kernel/extable.c:79)
[   18.700745][  T362]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.700940][  T362]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.701115][  T362]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   18.701291][  T362]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.701498][  T362]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   18.701688][  T362]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.701863][  T362]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.702037][  T362]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   18.702211][  T362]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   18.702385][  T362]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   18.702568][  T362]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   18.702779][  T362]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   18.702961][  T362]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   18.703139][  T362]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   18.703317][  T362]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.703496][  T362]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.703684][  T362]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.703875][  T362]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   18.704049][  T362]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.704226][  T362]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.704403][  T362]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.704586][  T362]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.704774][  T362]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.704950][  T362]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.705142][  T362]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   18.705317][  T362]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   18.705496][  T362]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.705683][  T362]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.705862][  T362]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.706036][  T362]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.706229][  T362]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   18.706403][  T362]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.706587][  T362]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   18.706781][  T362]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   18.706954][  T362]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   18.707133][  T362]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.707309][  T362]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   18.707510][  T362]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.707700][  T362]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   18.707877][  T362]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   18.708052][  T362]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   18.708229][  T362]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   18.708409][  T362]  ? copy_msghdr_from_user (net/socket.c:2635)
[   18.708606][  T362]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   18.708831][  T362]  ? move_addr_to_kernel (net/socket.c:258)
[   18.709012][  T362]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   18.709187][  T362]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   18.709362][  T362]  ___sys_sendmsg (net/socket.c:2752)
[   18.709544][  T362]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   18.709781][  T362]  ? copy_msghdr_from_user (net/socket.c:2603)
[   18.709976][  T362]  __sys_sendmsg (net/socket.c:2784)
[   18.710155][  T362]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   18.710331][  T362]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   18.710554][  T362]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   18.710748][  T362]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.710929][  T362]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.711124][  T362]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.711301][  T362]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.711488][  T362]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.711713][  T362] RIP: 0033:0x7f805268108e
[   18.711898][  T362] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   18.712414][  T362] RSP: 002b:00007ffff04007b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   18.712675][  T362] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f805268108e
[   18.712910][  T362] RDX: 0000000000000000 RSI: 00007ffff0400860 RDI: 0000000000000005
[   18.713164][  T362] RBP: 00007ffff04007c0 R08: 0000000000000000 R09: 0000000000000000
[   18.713400][  T362] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dac9
[   18.713666][  T362] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffff0400f30
| [   18.848459][  T365] ------------[ cut here ]------------
| [   18.848680][  T365] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/365
| [   18.848935][  T365] Modules linked in: ipvtap ipvlan
| [   18.849359][  T365] Tainted: [W]=WARN
[   18.849465][  T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.849641][  T365] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.850349][  T365] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.850931][  T365] RSP: 0018:ffa0000000d170b0 EFLAGS: 00010286
[   18.851135][  T365] RAX: 00000000ffffffa6 RBX: ff1100000b5d1380 RCX: 1ff40000001a2ddc
[   18.851344][  T365] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b5d143c
[   18.851572][  T365] RBP: ff11000007edc000 R08: 1fe22000016ba289 R09: ff1100000f5d2e80
[   18.851855][  T365] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   18.852063][  T365] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   18.852270][  T365] FS:  00007f3bb8d3c840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   18.852611][  T365] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.852847][  T365] CR2: 0000000000445730 CR3: 000000000e961004 CR4: 0000000000771ef0
[   18.853059][  T365] PKRU: 55555554
[   18.853163][  T365] Call Trace:
[   18.853269][  T365]  <TASK>
[   18.853343][  T365]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.853493][  T365]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   18.853638][  T365]  notifier_call_chain (kernel/notifier.c:85)
[   18.853788][  T365]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   18.853931][  T365]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.854077][  T365]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   18.854220][  T365]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   18.854343][  T365]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   18.854525][  T365]  ? ida_destroy (lib/idr.c:623)
[   18.854670][  T365]  netdev_upper_dev_link (net/core/dev.c:8972)
[   18.854809][  T365]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   18.854952][  T365] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   18.855095][  T365]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   18.855256][  T365]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   18.855405][  T365] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   18.855554][  T365]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   18.855705][  T365]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   18.855845][  T365]  ? __dev_get_by_name (net/core/dev.c:883)
[   18.855983][  T365]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   18.856136][  T365]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   18.856284][  T365]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   18.856425][  T365]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.856571][  T365]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.856714][  T365]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.856852][  T365]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   18.856999][  T365]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.857142][  T365]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.857282][  T365]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.857420][  T365]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   18.857575][  T365]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   18.857722][  T365]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.857863][  T365]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.858005][  T365]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.858151][  T365]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.858298][  T365]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   18.858436][  T365]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.858596][  T365]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   18.858740][  T365]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   18.858876][  T365]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   18.859016][  T365]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.859159][  T365]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   18.859591][  T365]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.859741][  T365]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   18.859884][  T365]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   18.860024][  T365]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   18.860165][  T365]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   18.860303][  T365]  ? copy_msghdr_from_user (net/socket.c:2635)
[   18.860441][  T365]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   18.860617][  T365]  ? move_addr_to_kernel (net/socket.c:258)
[   18.860772][  T365]  ___sys_sendmsg (net/socket.c:2752)
[   18.860912][  T365]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.861052][  T365]  ? copy_msghdr_from_user (net/socket.c:2603)
[   18.861202][  T365]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   18.861342][  T365]  __sys_sendmsg (net/socket.c:2784)
[   18.861485][  T365]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   18.861627][  T365]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.861768][  T365]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.861905][  T365]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.862043][  T365]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.862183][  T365]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.862322][  T365]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.862503][  T365] RIP: 0033:0x7f3bb8f7608e
[   18.862655][  T365] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   18.863151][  T365] RSP: 002b:00007fffcef395f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   18.863358][  T365] RAX: ffffffffffffffda RBX: 00007fffcef39da8 RCX: 00007f3bb8f7608e
[   18.863586][  T365] RDX: 0000000000000000 RSI: 00007fffcef396a0 RDI: 0000000000000005
[   18.863808][  T365] RBP: 00007fffcef39600 R08: 0000000000000000 R09: 0000000000000000
[   18.864018][  T365] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10daca
[   18.864229][  T365] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffcef39d60
| [   18.865898][  T365] ------------[ cut here ]------------
| [   18.866033][  T365] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/365
| [   18.866271][  T365] Modules linked in: ipvtap ipvlan
| [   18.866701][  T365] Tainted: [W]=WARN
[   18.866805][  T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.866978][  T365] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.867156][  T365] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.867649][  T365] RSP: 0018:ffa0000000d171b0 EFLAGS: 00010286
[   18.867845][  T365] RAX: 00000000ffffffa6 RBX: ff1100000b5d1700 RCX: 1ff40000001a2dfc
[   18.868047][  T365] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b5d17bc
[   18.868242][  T365] RBP: ff11000013652000 R08: 1fe22000016ba2f9 R09: ff1100000f5d2e80
[   18.868438][  T365] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   18.868638][  T365] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   18.868845][  T365] FS:  00007f3bb8d3c840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   18.869084][  T365] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.869256][  T365] CR2: 0000000000445730 CR3: 000000000e961004 CR4: 0000000000771ef0
[   18.869460][  T365] PKRU: 55555554
[   18.869568][  T365] Call Trace:
[   18.869675][  T365]  <TASK>
[   18.869749][  T365]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.869889][  T365]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.869992][  T365]  ? ida_destroy (lib/idr.c:623)
[   18.870132][  T365]  __dev_notify_flags (net/core/dev.c:9787)
[   18.870270][  T365]  ? netif_change_name (net/core/dev.c:1495)
[   18.870405][  T365]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   18.870542][  T365]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   18.870715][  T365]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   18.870888][  T365]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   18.871022][  T365]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   18.871158][  T365]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   18.871297][  T365]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   18.871436][  T365]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   18.871581][  T365]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   18.871720][  T365]  ? __dev_get_by_name (net/core/dev.c:883)
[   18.872165][  T365]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   18.872310][  T365]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   18.872451][  T365]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   18.872597][  T365]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.872737][  T365]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.872874][  T365]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.873013][  T365]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   18.873150][  T365]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.873291][  T365]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.873431][  T365]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   18.873574][  T365]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   18.873716][  T365]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   18.873853][  T365]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.873990][  T365]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.874130][  T365]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.874289][  T365]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.874427][  T365]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   18.874565][  T365]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.874702][  T365]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   18.874841][  T365]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   18.874972][  T365]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   18.875110][  T365]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.875243][  T365]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   18.875375][  T365]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.875515][  T365]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   18.875650][  T365]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   18.875789][  T365]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   18.875923][  T365]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   18.876056][  T365]  ? copy_msghdr_from_user (net/socket.c:2635)
[   18.876188][  T365]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   18.876352][  T365]  ? move_addr_to_kernel (net/socket.c:258)
[   18.876493][  T365]  ___sys_sendmsg (net/socket.c:2752)
[   18.876624][  T365]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.876762][  T365]  ? copy_msghdr_from_user (net/socket.c:2603)
[   18.876904][  T365]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   18.877040][  T365]  __sys_sendmsg (net/socket.c:2784)
[   18.877177][  T365]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   18.877313][  T365]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.877444][  T365]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.877582][  T365]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.877718][  T365]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.877851][  T365]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.877982][  T365]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.878146][  T365] RIP: 0033:0x7f3bb8f7608e
[   18.878282][  T365] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   18.878769][  T365] RSP: 002b:00007fffcef395f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   18.878972][  T365] RAX: ffffffffffffffda RBX: 00007fffcef39da8 RCX: 00007f3bb8f7608e
[   18.879179][  T365] RDX: 0000000000000000 RSI: 00007fffcef396a0 RDI: 0000000000000005
[   18.879380][  T365] RBP: 00007fffcef39600 R08: 0000000000000000 R09: 0000000000000000
[   18.879582][  T365] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10daca
[   18.879789][  T365] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffcef39d60
| [   18.939339][  T367] ------------[ cut here ]------------
| [   18.939521][  T367] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/367
| [   18.939762][  T367] Modules linked in: ipvtap ipvlan
| [   18.940164][  T367] Tainted: [W]=WARN
[   18.940264][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.940427][  T367] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.940605][  T367] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.941076][  T367] RSP: 0018:ffa0000000c07a80 EFLAGS: 00010286
[   18.941239][  T367] RAX: 00000000ffffffa6 RBX: ff1100000b5d0ac0 RCX: 1ff4000000180f16
[   18.941434][  T367] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b5d0b7c
[   18.941634][  T367] RBP: ff11000012cc4000 R08: 1fe22000016ba171 R09: ff1100000e7cae80
[   18.941833][  T367] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   18.942028][  T367] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012cc4000
[   18.942224][  T367] FS:  00007f049530b840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   18.942463][  T367] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.942640][  T367] CR2: 00007f049550cc20 CR3: 0000000010705002 CR4: 0000000000771ef0
[   18.943375][  T367] PKRU: 55555554
[   18.943474][  T367] Call Trace:
[   18.943580][  T367]  <TASK>
[   18.943650][  T367]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.943793][  T367]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.943929][  T367]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.944028][  T367]  register_netdevice (net/core/dev.c:11488)
[   18.944163][  T367]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.944334][  T367]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   18.944472][  T367]  register_netdev (net/core/dev.c:11552)
[   18.944611][  T367]  loopback_net_init (drivers/net/loopback.c:218)
[   18.944750][  T367]  ops_init (net/core/net_namespace.c:137)
[   18.944856][  T367]  setup_net (net/core/net_namespace.c:446)
[   18.944955][  T367]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.945084][  T367]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.945215][  T367]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.945354][  T367]  copy_net_ns (net/core/net_namespace.c:579)
[   18.945502][  T367]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.945641][  T367]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.945779][  T367]  ksys_unshare (kernel/fork.c:3243)
[   18.945912][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.946044][  T367]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.946178][  T367]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.946316][  T367]  ? __ia32_sys_open (fs/open.c:1374)
[   18.946450][  T367]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.946587][  T367]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.946721][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.946852][  T367]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.946985][  T367]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.947117][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.947278][  T367] RIP: 0033:0x7f04955cdbcb
[   18.947415][  T367] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.947897][  T367] RSP: 002b:00007ffe86abad88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.948094][  T367] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f04955cdbcb
[   18.948293][  T367] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.948499][  T367] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.948704][  T367] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe86abcfb0
[   18.948905][  T367] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe86abd87e
| [   18.954029][  T367] ------------[ cut here ]------------
| [   18.954165][  T367] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/367
| [   18.954386][  T367] Modules linked in: ipvtap ipvlan
| [   18.954796][  T367] Tainted: [W]=WARN
[   18.954898][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.955058][  T367] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.955224][  T367] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.956579][  T367] RSP: 0018:ffa0000000c07918 EFLAGS: 00010286
[   18.956807][  T367] RAX: 00000000ffffffa6 RBX: ff1100000becf8c0 RCX: 1ff4000000180ee9
[   18.957003][  T367] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000becf97c
[   18.957210][  T367] RBP: ff1100000fcdc000 R08: 1fe22000017d9f31 R09: ff1100000e7cae80
[   18.957407][  T367] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   18.957603][  T367] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fcdc000
[   18.957854][  T367] FS:  00007f049530b840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   18.958083][  T367] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.958250][  T367] CR2: 00007f049550cc20 CR3: 0000000010705002 CR4: 0000000000771ef0
[   18.958446][  T367] PKRU: 55555554
[   18.958552][  T367] Call Trace:
[   18.958706][  T367]  <TASK>
[   18.958775][  T367]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.958910][  T367]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.959044][  T367]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.959149][  T367]  register_netdevice (net/core/dev.c:11488)
[   18.959287][  T367]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.959458][  T367]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   18.959600][  T367]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   18.959790][  T367]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   18.959925][  T367]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   18.960063][  T367]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   18.960202][  T367]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   18.960334][  T367]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   18.960466][  T367]  ops_init (net/core/net_namespace.c:137)
[   18.960572][  T367]  setup_net (net/core/net_namespace.c:446)
[   18.960724][  T367]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.960853][  T367]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.960981][  T367]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.961114][  T367]  copy_net_ns (net/core/net_namespace.c:579)
[   18.961250][  T367]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.961387][  T367]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.961522][  T367]  ksys_unshare (kernel/fork.c:3243)
[   18.961723][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.961856][  T367]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.961987][  T367]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.962119][  T367]  ? __ia32_sys_open (fs/open.c:1374)
[   18.962254][  T367]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.962384][  T367]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.962546][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.962732][  T367]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.962861][  T367]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.962990][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.963158][  T367] RIP: 0033:0x7f04955cdbcb
[   18.963319][  T367] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.963868][  T367] RSP: 002b:00007ffe86abad88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.964078][  T367] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f04955cdbcb
[   18.964287][  T367] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.964496][  T367] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.964753][  T367] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe86abcfb0
[   18.964952][  T367] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe86abd87e
| [   18.969496][  T367] ------------[ cut here ]------------
| [   18.969709][  T367] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/367
| [   18.969994][  T367] Modules linked in: ipvtap ipvlan
| [   18.970524][  T367] Tainted: [W]=WARN
[   18.970697][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.970925][  T367] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.971150][  T367] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.971697][  T367] RSP: 0018:ffa0000000c078f8 EFLAGS: 00010286
[   18.971922][  T367] RAX: 00000000ffffffa6 RBX: ff1100000ce0be00 RCX: 1ff4000000180ee5
[   18.972167][  T367] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce0bebc
[   18.972414][  T367] RBP: ff1100001448c000 R08: 1fe22000019c17d9 R09: ff1100000e7cae80
[   18.972685][  T367] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   18.972930][  T367] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001448c000
[   18.973179][  T367] FS:  00007f049530b840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   18.973467][  T367] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.973706][  T367] CR2: 00007f06afc9cc70 CR3: 0000000010705001 CR4: 0000000000771ef0
[   18.973952][  T367] PKRU: 55555554
[   18.974097][  T367] Call Trace:
[   18.974245][  T367]  <TASK>
[   18.974360][  T367]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.974548][  T367]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.974744][  T367]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.974892][  T367]  register_netdevice (net/core/dev.c:11488)
[   18.975073][  T367]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.975285][  T367]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   18.975465][  T367]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   18.975670][  T367]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   18.975849][  T367]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   18.976034][  T367]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   18.976215][  T367]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   18.976395][  T367]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   18.976584][  T367]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   18.976788][  T367]  vti_init_net (net/ipv4/ip_vti.c:517)
[   18.976967][  T367]  ops_init (net/core/net_namespace.c:137)
[   18.977116][  T367]  setup_net (net/core/net_namespace.c:446)
[   18.977264][  T367]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.977444][  T367]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.977630][  T367]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.977828][  T367]  copy_net_ns (net/core/net_namespace.c:579)
[   18.978011][  T367]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.978192][  T367]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.978373][  T367]  ksys_unshare (kernel/fork.c:3243)
[   18.978561][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.978757][  T367]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.978938][  T367]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.979119][  T367]  ? __ia32_sys_open (fs/open.c:1374)
[   18.979300][  T367]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.979490][  T367]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.979682][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.979861][  T367]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.980041][  T367]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.980226][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.980437][  T367] RIP: 0033:0x7f04955cdbcb
[   18.980638][  T367] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.981168][  T367] RSP: 002b:00007ffe86abad88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.981422][  T367] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f04955cdbcb
[   18.981697][  T367] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   18.981941][  T367] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   18.982183][  T367] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe86abcfb0
[   18.982429][  T367] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe86abd87e
| [   18.987746][  T367] ------------[ cut here ]------------
| [   18.987931][  T367] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/367
| [   18.988204][  T367] Modules linked in: ipvtap ipvlan
| [   18.988727][  T367] Tainted: [W]=WARN
[   18.988874][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.989088][  T367] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.989304][  T367] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   18.989900][  T367] RSP: 0018:ffa0000000c07a78 EFLAGS: 00010286
[   18.990171][  T367] RAX: 00000000ffffffa6 RBX: ff110000107a9000 RCX: 1ff4000000180f15
[   18.990465][  T367] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000107a90bc
[   18.990784][  T367] RBP: ff110000144a4000 R08: 1fe22000020f5219 R09: ff1100000e7cae80
[   18.991090][  T367] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   18.991393][  T367] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000144a4000
[   18.991719][  T367] FS:  00007f049530b840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   18.992048][  T367] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.992318][  T367] CR2: 00007f06afc9cc70 CR3: 0000000010705001 CR4: 0000000000771ef0
[   18.992623][  T367] PKRU: 55555554
[   18.992836][  T367] Call Trace:
[   18.993034][  T367]  <TASK>
[   18.993202][  T367]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   18.993437][  T367]  ? notifier_call_chain (kernel/notifier.c:85)
[   18.993696][  T367]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   18.993900][  T367]  register_netdevice (net/core/dev.c:11488)
[   18.994135][  T367]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   18.994366][  T367]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.994572][  T367]  register_netdev (net/core/dev.c:11552)
[   18.994771][  T367]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   18.994953][  T367]  ops_init (net/core/net_namespace.c:137)
[   18.995103][  T367]  setup_net (net/core/net_namespace.c:446)
[   18.995254][  T367]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   18.995437][  T367]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   18.995631][  T367]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   18.995836][  T367]  copy_net_ns (net/core/net_namespace.c:579)
[   18.996059][  T367]  create_new_namespaces (kernel/nsproxy.c:132)
[   18.996312][  T367]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   18.996532][  T367]  ksys_unshare (kernel/fork.c:3243)
[   18.996732][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.996911][  T367]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   18.997089][  T367]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   18.997272][  T367]  ? __ia32_sys_open (fs/open.c:1374)
[   18.997454][  T367]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   18.997643][  T367]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   18.997836][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.998021][  T367]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   18.998205][  T367]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   18.998391][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.998617][  T367] RIP: 0033:0x7f04955cdbcb
[   18.998821][  T367] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.999346][  T367] RSP: 002b:00007ffe86abad88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   18.999604][  T367] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f04955cdbcb
[   18.999867][  T367] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.000116][  T367] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.000359][  T367] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe86abcfb0
[   19.000618][  T367] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe86abd87e
| [   19.005696][  T367] ------------[ cut here ]------------
| [   19.005889][  T367] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/367
| [   19.006163][  T367] Modules linked in: ipvtap ipvlan
| [   19.006688][  T367] Tainted: [W]=WARN
[   19.006837][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.007051][  T367] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.007273][  T367] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.008358][  T367] RSP: 0018:ffa0000000c07a68 EFLAGS: 00010286
[   19.008638][  T367] RAX: 00000000ffffffa6 RBX: ff11000005f183c0 RCX: 1ff4000000180f13
[   19.008948][  T367] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005f1847c
[   19.009246][  T367] RBP: ff11000014511000 R08: 1fe2200000be3091 R09: ff1100000e7cae80
[   19.009547][  T367] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.009856][  T367] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000014511000
[   19.010164][  T367] FS:  00007f049530b840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   19.010512][  T367] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.010791][  T367] CR2: 00007f06afc9cc70 CR3: 0000000010705001 CR4: 0000000000771ef0
[   19.011092][  T367] PKRU: 55555554
[   19.011290][  T367] Call Trace:
[   19.011501][  T367]  <TASK>
[   19.011687][  T367]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.011923][  T367]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.012164][  T367]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.012367][  T367]  register_netdevice (net/core/dev.c:11488)
[   19.012613][  T367]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.012851][  T367]  register_netdev (net/core/dev.c:11552)
[   19.013029][  T367]  sit_init_net (net/ipv6/sit.c:1860)
[   19.013209][  T367]  ops_init (net/core/net_namespace.c:137)
[   19.013357][  T367]  setup_net (net/core/net_namespace.c:446)
[   19.013515][  T367]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.013703][  T367]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.013882][  T367]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.014062][  T367]  copy_net_ns (net/core/net_namespace.c:579)
[   19.014240][  T367]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.014424][  T367]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.014615][  T367]  ksys_unshare (kernel/fork.c:3243)
[   19.014805][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.014983][  T367]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.015160][  T367]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.015340][  T367]  ? __ia32_sys_open (fs/open.c:1374)
[   19.015528][  T367]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.015719][  T367]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.015897][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.016075][  T367]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.016256][  T367]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.016438][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.016669][  T367] RIP: 0033:0x7f04955cdbcb
[   19.016852][  T367] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.017388][  T367] RSP: 002b:00007ffe86abad88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.017662][  T367] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f04955cdbcb
[   19.017917][  T367] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.018162][  T367] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.018410][  T367] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe86abcfb0
[   19.018672][  T367] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe86abd87e
| [   19.030351][  T367] ------------[ cut here ]------------
| [   19.030561][  T367] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/367
| [   19.030857][  T367] Modules linked in: ipvtap ipvlan
| [   19.031358][  T367] Tainted: [W]=WARN
[   19.031515][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.031742][  T367] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.031965][  T367] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.032477][  T367] RSP: 0018:ffa0000000c07a78 EFLAGS: 00010286
[   19.032716][  T367] RAX: 00000000ffffffa6 RBX: ff110000137fb380 RCX: 1ff4000000180f15
[   19.032961][  T367] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000137fb43c
[   19.033204][  T367] RBP: ff11000014534000 R08: 1fe22000026ff689 R09: ff1100000e7cae80
[   19.033449][  T367] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.033717][  T367] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000014534000
[   19.033967][  T367] FS:  00007f049530b840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   19.034251][  T367] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.034465][  T367] CR2: 00007f06afc9cc70 CR3: 0000000010705001 CR4: 0000000000771ef0
[   19.034731][  T367] PKRU: 55555554
[   19.034876][  T367] Call Trace:
[   19.035022][  T367]  <TASK>
[   19.035139][  T367]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.035319][  T367]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.035506][  T367]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.035669][  T367]  register_netdevice (net/core/dev.c:11488)
[   19.035850][  T367]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.036058][  T367]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.036239][  T367]  register_netdev (net/core/dev.c:11552)
[   19.036417][  T367]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   19.036609][  T367]  ops_init (net/core/net_namespace.c:137)
[   19.036774][  T367]  setup_net (net/core/net_namespace.c:446)
[   19.036922][  T367]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.037101][  T367]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.037283][  T367]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.037463][  T367]  copy_net_ns (net/core/net_namespace.c:579)
[   19.037670][  T367]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.037851][  T367]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.038031][  T367]  ksys_unshare (kernel/fork.c:3243)
[   19.038216][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.038401][  T367]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.038595][  T367]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.038795][  T367]  ? __ia32_sys_open (fs/open.c:1374)
[   19.038979][  T367]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.039159][  T367]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.039346][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.039537][  T367]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.039735][  T367]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.039917][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.040128][  T367] RIP: 0033:0x7f04955cdbcb
[   19.040312][  T367] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.040851][  T367] RSP: 002b:00007ffe86abad88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.041101][  T367] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f04955cdbcb
[   19.041346][  T367] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.041593][  T367] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.041850][  T367] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe86abcfb0
[   19.042097][  T367] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe86abd87e
| [   19.067250][  T368] ------------[ cut here ]------------
| [   19.067414][  T368] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/368
| [   19.067704][  T368] Modules linked in: ipvtap ipvlan
| [   19.068232][  T368] Tainted: [W]=WARN
[   19.068333][  T368] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.068508][  T368] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.068694][  T368] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.069225][  T368] RSP: 0018:ffa0000000d27020 EFLAGS: 00010286
[   19.069424][  T368] RAX: 00000000ffffffa6 RBX: ff1100000becec80 RCX: 1ff40000001a4dca
[   19.069736][  T368] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000beced3c
[   19.070036][  T368] RBP: ff11000012cc4000 R08: 1fe22000017d9da9 R09: ff1100000e6d2e58
[   19.070325][  T368] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   19.070571][  T368] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   19.070872][  T368] FS:  00007f831d3aa840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   19.071231][  T368] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.071437][  T368] CR2: 00000000042df988 CR3: 0000000004b31005 CR4: 0000000000771ef0
[   19.072228][  T368] PKRU: 55555554
[   19.072385][  T368] Call Trace:
[   19.072493][  T368]  <TASK>
[   19.072582][  T368]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.072794][  T368]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.072946][  T368]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   19.073150][  T368]  __dev_notify_flags (net/core/dev.c:9787)
[   19.073354][  T368]  ? netif_change_name (net/core/dev.c:1495)
[   19.073503][  T368]  ? __dev_change_flags (net/core/dev.c:9752)
[   19.073693][  T368]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   19.073886][  T368]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.074086][  T368]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   19.074293][  T368]  netif_change_flags (net/core/dev.c:9820)
[   19.074467][  T368]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   19.074610][  T368]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   19.074769][  T368]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   19.074964][  T368]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   19.075151][  T368]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.075282][  T368]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.075416][  T368]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   19.075556][  T368]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.075698][  T368]  ? __kernel_text_address (kernel/extable.c:79)
[   19.075836][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.075971][  T368]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.076101][  T368]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   19.076287][  T368]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.076446][  T368]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.076583][  T368]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.076720][  T368]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.076851][  T368]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   19.076981][  T368]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   19.077111][  T368]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   19.077240][  T368]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   19.077375][  T368]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   19.077517][  T368]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   19.077659][  T368]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   19.077792][  T368]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.077922][  T368]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.078053][  T368]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.078184][  T368]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   19.078313][  T368]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.078445][  T368]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.078587][  T368]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.078729][  T368]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.078864][  T368]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.078998][  T368]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.079128][  T368]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   19.079263][  T368]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.079400][  T368]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.079535][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.079670][  T368]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.079799][  T368]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.079929][  T368]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   19.080060][  T368]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.080191][  T368]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.080341][  T368]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   19.080470][  T368]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   19.080609][  T368]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.080747][  T368]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.080879][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.081011][  T368]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   19.081155][  T368]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   19.081288][  T368]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   19.081423][  T368]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   19.081558][  T368]  ? copy_msghdr_from_user (net/socket.c:2635)
[   19.081696][  T368]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   19.081860][  T368]  ? move_addr_to_kernel (net/socket.c:258)
[   19.082002][  T368]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.082134][  T368]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.082266][  T368]  ___sys_sendmsg (net/socket.c:2752)
[   19.082395][  T368]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   19.082563][  T368]  ? copy_msghdr_from_user (net/socket.c:2603)
[   19.082710][  T368]  __sys_sendmsg (net/socket.c:2784)
[   19.082842][  T368]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   19.082978][  T368]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   19.083141][  T368]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.083272][  T368]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.083403][  T368]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.083541][  T368]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.083683][  T368]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.083824][  T368]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.083992][  T368] RIP: 0033:0x7f831d5e408e
[   19.084137][  T368] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   19.084632][  T368] RSP: 002b:00007ffdf74f0ee0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.084850][  T368] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f831d5e408e
[   19.085048][  T368] RDX: 0000000000000000 RSI: 00007ffdf74f0f90 RDI: 0000000000000005
[   19.085254][  T368] RBP: 00007ffdf74f0ef0 R08: 0000000000000000 R09: 0000000000000000
[   19.085455][  T368] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10daca
[   19.085670][  T368] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdf74f1660
| [   19.215002][  T371] ------------[ cut here ]------------
| [   19.215234][  T371] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/371
| [   19.215563][  T371] Modules linked in: ipvtap ipvlan
| [   19.216110][  T371] Tainted: [W]=WARN
[   19.216263][  T371] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.216491][  T371] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.217384][  T371] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.218066][  T371] RSP: 0018:ffa0000000d470b0 EFLAGS: 00010286
[   19.218384][  T371] RAX: 00000000ffffffa6 RBX: ff110000107a8200 RCX: 1ff40000001a8ddc
[   19.218743][  T371] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000107a82bc
[   19.219098][  T371] RBP: ff11000007edc000 R08: 1fe22000020f5059 R09: ff11000013632e80
[   19.219355][  T371] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   19.219633][  T371] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   19.219901][  T371] FS:  00007f6c2dc0c840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   19.220216][  T371] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.220445][  T371] CR2: 0000000000445730 CR3: 0000000013308002 CR4: 0000000000771ef0
[   19.220721][  T371] PKRU: 55555554
[   19.220873][  T371] Call Trace:
[   19.221027][  T371]  <TASK>
[   19.221146][  T371]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.221355][  T371]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   19.221552][  T371]  notifier_call_chain (kernel/notifier.c:85)
[   19.221758][  T371]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   19.221948][  T371]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.222136][  T371]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   19.222320][  T371]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   19.222476][  T371]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   19.222742][  T371]  ? ida_destroy (lib/idr.c:623)
[   19.222935][  T371]  netdev_upper_dev_link (net/core/dev.c:8972)
[   19.223138][  T371]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   19.223327][  T371] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   19.223523][  T371]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   19.223721][  T371]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   19.223929][  T371] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   19.224116][  T371]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   19.224304][  T371]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   19.224496][  T371]  ? __dev_get_by_name (net/core/dev.c:883)
[   19.224696][  T371]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   19.224888][  T371]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   19.225077][  T371]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   19.225285][  T371]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.225472][  T371]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.225680][  T371]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.225865][  T371]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   19.226049][  T371]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.226240][  T371]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.226445][  T371]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.226636][  T371]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   19.226838][  T371]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.227023][  T371]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.227207][  T371]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.227402][  T371]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.227593][  T371]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.227812][  T371]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   19.227998][  T371]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.228184][  T371]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.228373][  T371]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   19.228562][  T371]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   19.228763][  T371]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.228968][  T371]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.229156][  T371]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.229345][  T371]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   19.229541][  T371]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   19.229742][  T371]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   19.229933][  T371]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   19.230121][  T371]  ? copy_msghdr_from_user (net/socket.c:2635)
[   19.230322][  T371]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   19.230548][  T371]  ? move_addr_to_kernel (net/socket.c:258)
[   19.230754][  T371]  ___sys_sendmsg (net/socket.c:2752)
[   19.230941][  T371]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.231127][  T371]  ? copy_msghdr_from_user (net/socket.c:2603)
[   19.231322][  T371]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   19.231533][  T371]  __sys_sendmsg (net/socket.c:2784)
[   19.231732][  T371]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   19.231919][  T371]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.232104][  T371]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.232289][  T371]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.232490][  T371]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.232699][  T371]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.232904][  T371]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.233120][  T371] RIP: 0033:0x7f6c2de4608e
[   19.233312][  T371] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   19.233894][  T371] RSP: 002b:00007ffc81c9ee80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.234156][  T371] RAX: ffffffffffffffda RBX: 00007ffc81c9f638 RCX: 00007f6c2de4608e
[   19.234415][  T371] RDX: 0000000000000000 RSI: 00007ffc81c9ef30 RDI: 0000000000000005
[   19.234688][  T371] RBP: 00007ffc81c9ee90 R08: 0000000000000000 R09: 0000000000000000
[   19.234950][  T371] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10daca
[   19.235228][  T371] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc81c9f5f0
| [   19.237387][  T371] ------------[ cut here ]------------
| [   19.237537][  T371] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/371
| [   19.237774][  T371] Modules linked in: ipvtap ipvlan
| [   19.238181][  T371] Tainted: [W]=WARN
[   19.238282][  T371] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.238448][  T371] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.238625][  T371] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.239100][  T371] RSP: 0018:ffa0000000d471b0 EFLAGS: 00010286
[   19.239273][  T371] RAX: 00000000ffffffa6 RBX: ff11000012bfc3c0 RCX: 1ff40000001a8dfc
[   19.239469][  T371] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012bfc47c
[   19.239675][  T371] RBP: ff11000013ada000 R08: 1fe220000257f891 R09: ff11000013632e80
[   19.239871][  T371] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.240068][  T371] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   19.240272][  T371] FS:  00007f6c2dc0c840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   19.240509][  T371] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.240682][  T371] CR2: 00007f8546b33000 CR3: 0000000013308003 CR4: 0000000000771ef0
[   19.240882][  T371] PKRU: 55555554
[   19.240981][  T371] Call Trace:
[   19.241085][  T371]  <TASK>
[   19.241153][  T371]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.241287][  T371]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.241387][  T371]  ? ida_destroy (lib/idr.c:623)
[   19.241527][  T371]  __dev_notify_flags (net/core/dev.c:9787)
[   19.241668][  T371]  ? netif_change_name (net/core/dev.c:1495)
[   19.241802][  T371]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.241941][  T371]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   19.242106][  T371]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   19.242270][  T371]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   19.242403][  T371]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   19.242541][  T371]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   19.242679][  T371]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   19.242821][  T371]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   19.242954][  T371]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   19.243086][  T371]  ? __dev_get_by_name (net/core/dev.c:883)
[   19.243216][  T371]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   19.243352][  T371]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   19.243492][  T371]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   19.243625][  T371]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.243770][  T371]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.243905][  T371]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.244040][  T371]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   19.244173][  T371]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.244309][  T371]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.244442][  T371]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.244590][  T371]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   19.244726][  T371]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.244858][  T371]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.244988][  T371]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.245120][  T371]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.245251][  T371]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.245383][  T371]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   19.245616][  T371]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.245753][  T371]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.245889][  T371]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   19.246021][  T371]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   19.246243][  T371]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.246377][  T371]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.246518][  T371]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.246656][  T371]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   19.246878][  T371]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   19.247009][  T371]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   19.247140][  T371]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   19.247273][  T371]  ? copy_msghdr_from_user (net/socket.c:2635)
[   19.247495][  T371]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   19.247667][  T371]  ? move_addr_to_kernel (net/socket.c:258)
[   19.247803][  T371]  ___sys_sendmsg (net/socket.c:2752)
[   19.247933][  T371]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.248153][  T371]  ? copy_msghdr_from_user (net/socket.c:2603)
[   19.248295][  T371]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   19.248427][  T371]  __sys_sendmsg (net/socket.c:2784)
[   19.248571][  T371]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   19.248800][  T371]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.248929][  T371]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.249061][  T371]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.249191][  T371]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.249409][  T371]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.249553][  T371]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.249722][  T371] RIP: 0033:0x7f6c2de4608e
[   19.249953][  T371] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   19.250415][  T371] RSP: 002b:00007ffc81c9ee80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.250719][  T371] RAX: ffffffffffffffda RBX: 00007ffc81c9f638 RCX: 00007f6c2de4608e
[   19.250914][  T371] RDX: 0000000000000000 RSI: 00007ffc81c9ef30 RDI: 0000000000000005
[   19.251198][  T371] RBP: 00007ffc81c9ee90 R08: 0000000000000000 R09: 0000000000000000
[   19.251393][  T371] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10daca
[   19.251602][  T371] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc81c9f5f0
| [   19.302258][  T373] ------------[ cut here ]------------
| [   19.302419][  T373] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/373
| [   19.302663][  T373] Modules linked in: ipvtap ipvlan
| [   19.303076][  T373] Tainted: [W]=WARN
[   19.303176][  T373] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.303341][  T373] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.303520][  T373] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.303994][  T373] RSP: 0018:ffa0000000d27a80 EFLAGS: 00010286
[   19.304159][  T373] RAX: 00000000ffffffa6 RBX: ff1100000c67a200 RCX: 1ff40000001a4f16
[   19.304361][  T373] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c67a2bc
[   19.304563][  T373] RBP: ff110000139c9000 R08: 1fe22000018cf459 R09: ff1100000f3a0b80
[   19.304768][  T373] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.304964][  T373] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000139c9000
[   19.305161][  T373] FS:  00007fadf1919840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   19.305395][  T373] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.305563][  T373] CR2: 00007fadf1b1ac20 CR3: 0000000004e9f004 CR4: 0000000000771ef0
[   19.305765][  T373] PKRU: 55555554
[   19.305865][  T373] Call Trace:
[   19.305962][  T373]  <TASK>
[   19.306028][  T373]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.306164][  T373]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.306297][  T373]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.306395][  T373]  register_netdevice (net/core/dev.c:11488)
[   19.306535][  T373]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.306699][  T373]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.306830][  T373]  register_netdev (net/core/dev.c:11552)
[   19.306966][  T373]  loopback_net_init (drivers/net/loopback.c:218)
[   19.307100][  T373]  ops_init (net/core/net_namespace.c:137)
[   19.307202][  T373]  setup_net (net/core/net_namespace.c:446)
[   19.307300][  T373]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.307429][  T373]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.307564][  T373]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.307699][  T373]  copy_net_ns (net/core/net_namespace.c:579)
[   19.307832][  T373]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.307965][  T373]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.308097][  T373]  ksys_unshare (kernel/fork.c:3243)
[   19.308227][  T373]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.308358][  T373]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.308491][  T373]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.308622][  T373]  ? __ia32_sys_open (fs/open.c:1374)
[   19.308765][  T373]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.308893][  T373]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.309022][  T373]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.309154][  T373]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.309285][  T373]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.309414][  T373]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.309589][  T373] RIP: 0033:0x7fadf1bdbbcb
[   19.309729][  T373] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.310192][  T373] RSP: 002b:00007ffc47faf888 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.310394][  T373] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fadf1bdbbcb
[   19.310595][  T373] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.310793][  T373] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.310988][  T373] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc47fb1ab0
[   19.311181][  T373] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc47fb287e
| [   19.315586][  T373] ------------[ cut here ]------------
| [   19.315735][  T373] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/373
| [   19.315955][  T373] Modules linked in: ipvtap ipvlan
| [   19.316348][  T373] Tainted: [W]=WARN
[   19.316446][  T373] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.316618][  T373] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.316792][  T373] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.317255][  T373] RSP: 0018:ffa0000000d27918 EFLAGS: 00010286
[   19.317416][  T373] RAX: 00000000ffffffa6 RBX: ff1100000c319000 RCX: 1ff40000001a4ee9
[   19.317619][  T373] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3190bc
[   19.317819][  T373] RBP: ff1100001468c000 R08: 1fe2200001863219 R09: ff1100000f3a0b80
[   19.318012][  T373] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.318206][  T373] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001468c000
[   19.318408][  T373] FS:  00007fadf1919840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   19.318639][  T373] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.318807][  T373] CR2: 00007fadf1b1ac20 CR3: 0000000004e9f004 CR4: 0000000000771ef0
[   19.319004][  T373] PKRU: 55555554
[   19.319099][  T373] Call Trace:
[   19.319200][  T373]  <TASK>
[   19.319266][  T373]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.319396][  T373]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.319528][  T373]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.319628][  T373]  register_netdevice (net/core/dev.c:11488)
[   19.319763][  T373]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.319927][  T373]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.320063][  T373]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.320192][  T373]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.320321][  T373]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.320452][  T373]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.320585][  T373]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.320721][  T373]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   19.320856][  T373]  ops_init (net/core/net_namespace.c:137)
[   19.320961][  T373]  setup_net (net/core/net_namespace.c:446)
[   19.321058][  T373]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.321188][  T373]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.321322][  T373]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.321458][  T373]  copy_net_ns (net/core/net_namespace.c:579)
[   19.321600][  T373]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.321737][  T373]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.321878][  T373]  ksys_unshare (kernel/fork.c:3243)
[   19.322011][  T373]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.322144][  T373]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.322276][  T373]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.322406][  T373]  ? __ia32_sys_open (fs/open.c:1374)
[   19.322540][  T373]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.322679][  T373]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.322809][  T373]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.322937][  T373]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.323071][  T373]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.323204][  T373]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.323364][  T373] RIP: 0033:0x7fadf1bdbbcb
[   19.323512][  T373] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.323976][  T373] RSP: 002b:00007ffc47faf888 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.324172][  T373] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fadf1bdbbcb
[   19.324372][  T373] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.324572][  T373] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.324769][  T373] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc47fb1ab0
[   19.324960][  T373] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc47fb287e
| [   19.328799][  T373] ------------[ cut here ]------------
| [   19.328935][  T373] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/373
| [   19.329162][  T373] Modules linked in: ipvtap ipvlan
| [   19.329576][  T373] Tainted: [W]=WARN
[   19.330195][  T373] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.330358][  T373] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.330531][  T373] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.331059][  T373] RSP: 0018:ffa0000000d278f8 EFLAGS: 00010286
[   19.331223][  T373] RAX: 00000000ffffffa6 RBX: ff110000104d5c40 RCX: 1ff40000001a4ee5
[   19.331417][  T373] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104d5cfc
[   19.331616][  T373] RBP: ff1100001469c000 R08: 1fe220000209aba1 R09: ff1100000f3a0b80
[   19.331880][  T373] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.332075][  T373] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001469c000
[   19.332271][  T373] FS:  00007fadf1919840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   19.332504][  T373] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.332730][  T373] CR2: 00007fadf1b1ac20 CR3: 0000000004e9f004 CR4: 0000000000771ef0
[   19.332929][  T373] PKRU: 55555554
[   19.333026][  T373] Call Trace:
[   19.333123][  T373]  <TASK>
[   19.333191][  T373]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.333321][  T373]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.333483][  T373]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.333589][  T373]  register_netdevice (net/core/dev.c:11488)
[   19.333778][  T373]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.333941][  T373]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.334074][  T373]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.334204][  T373]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.334335][  T373]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.334474][  T373]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.334611][  T373]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.334800][  T373]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   19.334932][  T373]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   19.335064][  T373]  vti_init_net (net/ipv4/ip_vti.c:517)
[   19.335195][  T373]  ops_init (net/core/net_namespace.c:137)
[   19.335295][  T373]  setup_net (net/core/net_namespace.c:446)
[   19.335400][  T373]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.335536][  T373]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.335723][  T373]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.335859][  T373]  copy_net_ns (net/core/net_namespace.c:579)
[   19.335990][  T373]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.336124][  T373]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.336258][  T373]  ksys_unshare (kernel/fork.c:3243)
[   19.336395][  T373]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.336530][  T373]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.336716][  T373]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.336851][  T373]  ? __ia32_sys_open (fs/open.c:1374)
[   19.336983][  T373]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.337114][  T373]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.337258][  T373]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.337389][  T373]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.337523][  T373]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.337708][  T373]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.337870][  T373] RIP: 0033:0x7fadf1bdbbcb
[   19.338007][  T373] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.338579][  T373] RSP: 002b:00007ffc47faf888 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.338832][  T373] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fadf1bdbbcb
[   19.339029][  T373] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.339230][  T373] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.339518][  T373] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc47fb1ab0
[   19.339769][  T373] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc47fb287e
| [   19.349886][  T373] ------------[ cut here ]------------
| [   19.350087][  T373] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/373
| [   19.350371][  T373] Modules linked in: ipvtap ipvlan
| [   19.350916][  T373] Tainted: [W]=WARN
[   19.351064][  T373] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.351278][  T373] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.351503][  T373] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.352044][  T373] RSP: 0018:ffa0000000d27a78 EFLAGS: 00010286
[   19.352256][  T373] RAX: 00000000ffffffa6 RBX: ff11000013b30900 RCX: 1ff40000001a4f15
[   19.352502][  T373] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013b309bc
[   19.352757][  T373] RBP: ff110000146ec000 R08: 1fe2200002766139 R09: ff1100000f3a0b80
[   19.353004][  T373] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.353242][  T373] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000146ec000
[   19.353491][  T373] FS:  00007fadf1919840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   19.353779][  T373] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.353991][  T373] CR2: 00007fcdc341d2a0 CR3: 0000000004e9f005 CR4: 0000000000771ef0
[   19.354234][  T373] PKRU: 55555554
[   19.354378][  T373] Call Trace:
[   19.354528][  T373]  <TASK>
[   19.354642][  T373]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.354834][  T373]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.355012][  T373]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.355163][  T373]  register_netdevice (net/core/dev.c:11488)
[   19.355343][  T373]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.355560][  T373]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.355756][  T373]  register_netdev (net/core/dev.c:11552)
[   19.355935][  T373]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   19.356116][  T373]  ops_init (net/core/net_namespace.c:137)
[   19.356265][  T373]  setup_net (net/core/net_namespace.c:446)
[   19.356415][  T373]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.356603][  T373]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.356797][  T373]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.356978][  T373]  copy_net_ns (net/core/net_namespace.c:579)
[   19.357157][  T373]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.357337][  T373]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.357523][  T373]  ksys_unshare (kernel/fork.c:3243)
[   19.357716][  T373]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.357894][  T373]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.358073][  T373]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.358254][  T373]  ? __ia32_sys_open (fs/open.c:1374)
[   19.358435][  T373]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.358627][  T373]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.358820][  T373]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.358999][  T373]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.359181][  T373]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.359360][  T373]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.359579][  T373] RIP: 0033:0x7fadf1bdbbcb
[   19.359773][  T373] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.360290][  T373] RSP: 002b:00007ffc47faf888 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.360546][  T373] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fadf1bdbbcb
[   19.360811][  T373] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.361054][  T373] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.361300][  T373] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc47fb1ab0
[   19.361549][  T373] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc47fb287e
| [   19.366332][  T373] ------------[ cut here ]------------
| [   19.366513][  T373] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/373
| [   19.366796][  T373] Modules linked in: ipvtap ipvlan
| [   19.367297][  T373] Tainted: [W]=WARN
[   19.367445][  T373] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.367671][  T373] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.367887][  T373] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.368403][  T373] RSP: 0018:ffa0000000d27a68 EFLAGS: 00010286
[   19.368624][  T373] RAX: 00000000ffffffa6 RBX: ff110000145bcc80 RCX: 1ff40000001a4f13
[   19.368877][  T373] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000145bcd3c
[   19.369121][  T373] RBP: ff11000014569000 R08: 1fe22000028b79a9 R09: ff1100000f3a0b80
[   19.369361][  T373] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.369614][  T373] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000014569000
[   19.369873][  T373] FS:  00007fadf1919840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   19.370154][  T373] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.370364][  T373] CR2: 00007fcdc341d2a0 CR3: 0000000004e9f005 CR4: 0000000000771ef0
[   19.370616][  T373] PKRU: 55555554
[   19.370776][  T373] Call Trace:
[   19.370922][  T373]  <TASK>
[   19.371036][  T373]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.371216][  T373]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.371395][  T373]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.371553][  T373]  register_netdevice (net/core/dev.c:11488)
[   19.371748][  T373]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.371961][  T373]  register_netdev (net/core/dev.c:11552)
[   19.372149][  T373]  sit_init_net (net/ipv6/sit.c:1860)
[   19.372330][  T373]  ops_init (net/core/net_namespace.c:137)
[   19.372489][  T373]  setup_net (net/core/net_namespace.c:446)
[   19.372638][  T373]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.372829][  T373]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.373011][  T373]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.373197][  T373]  copy_net_ns (net/core/net_namespace.c:579)
[   19.373382][  T373]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.373573][  T373]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.373768][  T373]  ksys_unshare (kernel/fork.c:3243)
[   19.373948][  T373]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.374125][  T373]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.374305][  T373]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.374491][  T373]  ? __ia32_sys_open (fs/open.c:1374)
[   19.374689][  T373]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.374868][  T373]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.375046][  T373]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.375225][  T373]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.375404][  T373]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.375594][  T373]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.375822][  T373] RIP: 0033:0x7fadf1bdbbcb
[   19.376008][  T373] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.376526][  T373] RSP: 002b:00007ffc47faf888 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.376789][  T373] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fadf1bdbbcb
[   19.377030][  T373] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.377275][  T373] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.377529][  T373] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc47fb1ab0
[   19.377791][  T373] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc47fb287e
| [   19.384052][  T373] ------------[ cut here ]------------
| [   19.384236][  T373] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/373
| [   19.384518][  T373] Modules linked in: ipvtap ipvlan
| [   19.385028][  T373] Tainted: [W]=WARN
[   19.385173][  T373] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.385384][  T373] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.385613][  T373] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.386202][  T373] RSP: 0018:ffa0000000d27a78 EFLAGS: 00010286
[   19.386478][  T373] RAX: 00000000ffffffa6 RBX: ff110000145c11c0 RCX: 1ff40000001a4f15
[   19.386803][  T373] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000145c127c
[   19.387108][  T373] RBP: ff1100001476c000 R08: 1fe22000028b8251 R09: ff1100000f3a0b80
[   19.387416][  T373] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.387738][  T373] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001476c000
[   19.388039][  T373] FS:  00007fadf1919840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   19.388366][  T373] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.388644][  T373] CR2: 00007fcdc341d2a0 CR3: 0000000004e9f005 CR4: 0000000000771ef0
[   19.389012][  T373] PKRU: 55555554
[   19.389207][  T373] Call Trace:
[   19.389404][  T373]  <TASK>
[   19.389580][  T373]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.389827][  T373]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.390059][  T373]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.390264][  T373]  register_netdevice (net/core/dev.c:11488)
[   19.390519][  T373]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.390795][  T373]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.391031][  T373]  register_netdev (net/core/dev.c:11552)
[   19.391265][  T373]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   19.391506][  T373]  ops_init (net/core/net_namespace.c:137)
[   19.391720][  T373]  setup_net (net/core/net_namespace.c:446)
[   19.391922][  T373]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.392159][  T373]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.392394][  T373]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.392639][  T373]  copy_net_ns (net/core/net_namespace.c:579)
[   19.392891][  T373]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.393134][  T373]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.393375][  T373]  ksys_unshare (kernel/fork.c:3243)
[   19.393620][  T373]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.393862][  T373]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.394092][  T373]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.394306][  T373]  ? __ia32_sys_open (fs/open.c:1374)
[   19.394494][  T373]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.394685][  T373]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.394866][  T373]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.395045][  T373]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.395228][  T373]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.395407][  T373]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.395625][  T373] RIP: 0033:0x7fadf1bdbbcb
[   19.395819][  T373] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.396332][  T373] RSP: 002b:00007ffc47faf888 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.396583][  T373] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fadf1bdbbcb
[   19.396834][  T373] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.397076][  T373] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.397316][  T373] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc47fb1ab0
[   19.397570][  T373] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc47fb287e
| [   19.428584][  T374] ------------[ cut here ]------------
| [   19.429390][  T374] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/374
| [   19.429631][  T374] Modules linked in: ipvtap ipvlan
| [   19.430118][  T374] Tainted: [W]=WARN
[   19.430216][  T374] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.430380][  T374] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.430559][  T374] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.431068][  T374] RSP: 0018:ffa0000000d37020 EFLAGS: 00010286
[   19.431233][  T374] RAX: 00000000ffffffa6 RBX: ff110000104d5380 RCX: 1ff40000001a6dca
[   19.431424][  T374] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104d543c
[   19.431622][  T374] RBP: ff110000139c9000 R08: 1fe220000209aa89 R09: ff1100000f3a2e58
[   19.431826][  T374] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   19.432018][  T374] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   19.432212][  T374] FS:  00007fc8d8ace840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   19.432446][  T374] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.432620][  T374] CR2: 000000003e898988 CR3: 00000000106b1006 CR4: 0000000000771ef0
[   19.432821][  T374] PKRU: 55555554
[   19.432919][  T374] Call Trace:
[   19.433017][  T374]  <TASK>
[   19.433085][  T374]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.433217][  T374]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.433319][  T374]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   19.433450][  T374]  __dev_notify_flags (net/core/dev.c:9787)
[   19.433583][  T374]  ? netif_change_name (net/core/dev.c:1495)
[   19.433722][  T374]  ? __dev_change_flags (net/core/dev.c:9752)
[   19.433851][  T374]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   19.433981][  T374]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.434111][  T374]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   19.434245][  T374]  netif_change_flags (net/core/dev.c:9820)
[   19.434375][  T374]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   19.434512][  T374]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   19.434644][  T374]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   19.434779][  T374]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   19.434945][  T374]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.435075][  T374]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.435206][  T374]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   19.435334][  T374]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.435467][  T374]  ? __kernel_text_address (kernel/extable.c:79)
[   19.435600][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.435739][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.435870][  T374]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   19.436000][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.436132][  T374]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.436262][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.436391][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.436523][  T374]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   19.436657][  T374]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   19.436788][  T374]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   19.436921][  T374]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   19.437051][  T374]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   19.437185][  T374]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   19.437319][  T374]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   19.437449][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.437584][  T374]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.437718][  T374]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.437845][  T374]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   19.437973][  T374]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.438105][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.438232][  T374]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.438360][  T374]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.438493][  T374]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.438622][  T374]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.438758][  T374]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   19.438887][  T374]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.439015][  T374]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.439143][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.439273][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.439401][  T374]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.439534][  T374]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   19.439666][  T374]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.439796][  T374]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.439928][  T374]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   19.440056][  T374]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   19.440188][  T374]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.440317][  T374]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.440447][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.440580][  T374]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   19.440714][  T374]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   19.440843][  T374]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   19.440974][  T374]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   19.441103][  T374]  ? copy_msghdr_from_user (net/socket.c:2635)
[   19.441232][  T374]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   19.441393][  T374]  ? move_addr_to_kernel (net/socket.c:258)
[   19.441527][  T374]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.441661][  T374]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.441798][  T374]  ___sys_sendmsg (net/socket.c:2752)
[   19.441928][  T374]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   19.442088][  T374]  ? copy_msghdr_from_user (net/socket.c:2603)
[   19.442229][  T374]  __sys_sendmsg (net/socket.c:2784)
[   19.442357][  T374]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   19.442490][  T374]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   19.442659][  T374]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.442789][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.442917][  T374]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.443048][  T374]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.443179][  T374]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.443309][  T374]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.443469][  T374] RIP: 0033:0x7fc8d8d0808e
[   19.443610][  T374] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   19.444078][  T374] RSP: 002b:00007ffdeac11ea0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.444275][  T374] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fc8d8d0808e
[   19.444466][  T374] RDX: 0000000000000000 RSI: 00007ffdeac11f50 RDI: 0000000000000005
[   19.444667][  T374] RBP: 00007ffdeac11eb0 R08: 0000000000000000 R09: 0000000000000000
[   19.444861][  T374] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10daca
[   19.445054][  T374] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdeac12620
| [   19.578674][  T377] ------------[ cut here ]------------
| [   19.578861][  T377] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/377
| [   19.579118][  T377] Modules linked in: ipvtap ipvlan
| [   19.579569][  T377] Tainted: [W]=WARN
[   19.580246][  T377] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.580432][  T377] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.580632][  T377] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.581156][  T377] RSP: 0018:ffa0000000d770b0 EFLAGS: 00010286
[   19.581346][  T377] RAX: 00000000ffffffa6 RBX: ff110000145c3000 RCX: 1ff40000001aeddc
[   19.581570][  T377] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000145c30bc
[   19.581794][  T377] RBP: ff11000007edc000 R08: 1fe22000028b8619 R09: ff1100000903d180
[   19.582014][  T377] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   19.582235][  T377] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   19.582455][  T377] FS:  00007fc4dab9a840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   19.582716][  T377] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.582897][  T377] CR2: 0000000000445730 CR3: 0000000013906005 CR4: 0000000000771ef0
[   19.583114][  T377] PKRU: 55555554
[   19.583223][  T377] Call Trace:
[   19.583332][  T377]  <TASK>
[   19.583407][  T377]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.583558][  T377]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   19.583706][  T377]  notifier_call_chain (kernel/notifier.c:85)
[   19.583856][  T377]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   19.583997][  T377]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.584136][  T377]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   19.584272][  T377]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   19.584381][  T377]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   19.584561][  T377]  ? ida_destroy (lib/idr.c:623)
[   19.584705][  T377]  netdev_upper_dev_link (net/core/dev.c:8972)
[   19.584844][  T377]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   19.584985][  T377] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   19.585130][  T377]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   19.585270][  T377]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   19.585413][  T377] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   19.585559][  T377]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   19.585703][  T377]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   19.585842][  T377]  ? __dev_get_by_name (net/core/dev.c:883)
[   19.585981][  T377]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   19.586129][  T377]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   19.586273][  T377]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   19.586414][  T377]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.586556][  T377]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.586699][  T377]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.586839][  T377]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   19.586977][  T377]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.587119][  T377]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.587259][  T377]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.587399][  T377]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   19.587544][  T377]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.587690][  T377]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.587830][  T377]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.587973][  T377]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.588111][  T377]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.588251][  T377]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   19.588390][  T377]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.588538][  T377]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.588686][  T377]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   19.588824][  T377]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   19.588965][  T377]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.589105][  T377]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.589244][  T377]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.589385][  T377]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   19.589531][  T377]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   19.589677][  T377]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   19.589819][  T377]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   19.589959][  T377]  ? copy_msghdr_from_user (net/socket.c:2635)
[   19.590097][  T377]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   19.590266][  T377]  ? move_addr_to_kernel (net/socket.c:258)
[   19.590410][  T377]  ___sys_sendmsg (net/socket.c:2752)
[   19.590559][  T377]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.590702][  T377]  ? copy_msghdr_from_user (net/socket.c:2603)
[   19.590850][  T377]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   19.590993][  T377]  __sys_sendmsg (net/socket.c:2784)
[   19.591138][  T377]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   19.591286][  T377]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.591434][  T377]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.591586][  T377]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.591735][  T377]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.591881][  T377]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.592026][  T377]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.592201][  T377] RIP: 0033:0x7fc4dadd408e
[   19.592348][  T377] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   19.592851][  T377] RSP: 002b:00007ffeaaa4a570 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.593058][  T377] RAX: ffffffffffffffda RBX: 00007ffeaaa4ad28 RCX: 00007fc4dadd408e
[   19.593264][  T377] RDX: 0000000000000000 RSI: 00007ffeaaa4a620 RDI: 0000000000000005
[   19.593475][  T377] RBP: 00007ffeaaa4a580 R08: 0000000000000000 R09: 0000000000000000
[   19.593690][  T377] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10daca
[   19.593899][  T377] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffeaaa4ace0
| [   19.595538][  T377] ------------[ cut here ]------------
| [   19.595672][  T377] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/377
| [   19.595899][  T377] Modules linked in: ipvtap ipvlan
| [   19.596304][  T377] Tainted: [W]=WARN
[   19.596404][  T377] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.596576][  T377] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.596757][  T377] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.597231][  T377] RSP: 0018:ffa0000000d771b0 EFLAGS: 00010286
[   19.597401][  T377] RAX: 00000000ffffffa6 RBX: ff110000145c31c0 RCX: 1ff40000001aedfc
[   19.597606][  T377] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000145c327c
[   19.597809][  T377] RBP: ff11000013c0a000 R08: 1fe22000028b8651 R09: ff1100000903d180
[   19.598007][  T377] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.598205][  T377] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   19.598404][  T377] FS:  00007fc4dab9a840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   19.598647][  T377] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.598820][  T377] CR2: 0000000000445730 CR3: 0000000013906005 CR4: 0000000000771ef0
[   19.599019][  T377] PKRU: 55555554
[   19.599119][  T377] Call Trace:
[   19.599219][  T377]  <TASK>
[   19.599288][  T377]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.599423][  T377]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.599530][  T377]  ? ida_destroy (lib/idr.c:623)
[   19.599667][  T377]  __dev_notify_flags (net/core/dev.c:9787)
[   19.599803][  T377]  ? netif_change_name (net/core/dev.c:1495)
[   19.599937][  T377]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.600072][  T377]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   19.600241][  T377]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   19.600405][  T377]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   19.600548][  T377]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   19.600690][  T377]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   19.600825][  T377]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   19.600960][  T377]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   19.601095][  T377]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   19.601230][  T377]  ? __dev_get_by_name (net/core/dev.c:883)
[   19.601363][  T377]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   19.601508][  T377]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   19.601646][  T377]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   19.601785][  T377]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.601921][  T377]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.602053][  T377]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.602186][  T377]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   19.602318][  T377]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.602455][  T377]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.602595][  T377]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.602731][  T377]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   19.602868][  T377]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.602998][  T377]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.603130][  T377]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.603265][  T377]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.603398][  T377]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.603542][  T377]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   19.603680][  T377]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.603815][  T377]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.603953][  T377]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   19.604086][  T377]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   19.604221][  T377]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.604358][  T377]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.604496][  T377]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.604632][  T377]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   19.604772][  T377]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   19.604908][  T377]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   19.605044][  T377]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   19.605180][  T377]  ? copy_msghdr_from_user (net/socket.c:2635)
[   19.605313][  T377]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   19.605478][  T377]  ? move_addr_to_kernel (net/socket.c:258)
[   19.605622][  T377]  ___sys_sendmsg (net/socket.c:2752)
[   19.605760][  T377]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.605895][  T377]  ? copy_msghdr_from_user (net/socket.c:2603)
[   19.606036][  T377]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   19.606172][  T377]  __sys_sendmsg (net/socket.c:2784)
[   19.606308][  T377]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   19.606445][  T377]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.606590][  T377]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.606731][  T377]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.606864][  T377]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.607001][  T377]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.607135][  T377]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.607299][  T377] RIP: 0033:0x7fc4dadd408e
[   19.607439][  T377] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   19.607929][  T377] RSP: 002b:00007ffeaaa4a570 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.608131][  T377] RAX: ffffffffffffffda RBX: 00007ffeaaa4ad28 RCX: 00007fc4dadd408e
[   19.608333][  T377] RDX: 0000000000000000 RSI: 00007ffeaaa4a620 RDI: 0000000000000005
[   19.608540][  T377] RBP: 00007ffeaaa4a580 R08: 0000000000000000 R09: 0000000000000000
[   19.608743][  T377] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10daca
[   19.608943][  T377] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffeaaa4ace0
| [   19.664383][  T379] ------------[ cut here ]------------
| [   19.664602][  T379] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/379
| [   19.665178][  T379] Modules linked in: ipvtap ipvlan
| [   19.665737][  T379] Tainted: [W]=WARN
[   19.665887][  T379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.666175][  T379] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.666410][  T379] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.667004][  T379] RSP: 0018:ffa0000000d67a80 EFLAGS: 00010286
[   19.667256][  T379] RAX: 00000000ffffffa6 RBX: ff110000145bdc40 RCX: 1ff40000001acf16
[   19.667508][  T379] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000145bdcfc
[   19.667775][  T379] RBP: ff110000139d9000 R08: 1fe22000028b7ba1 R09: ff1100000f9e5180
[   19.668117][  T379] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.668385][  T379] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000139d9000
[   19.668640][  T379] FS:  00007f7395a7f840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   19.668988][  T379] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.669242][  T379] CR2: 00007f7395c86430 CR3: 000000000fa7a003 CR4: 0000000000771ef0
[   19.669594][  T379] PKRU: 55555554
[   19.669811][  T379] Call Trace:
[   19.670007][  T379]  <TASK>
[   19.670128][  T379]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.670357][  T379]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.670618][  T379]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.670787][  T379]  register_netdevice (net/core/dev.c:11488)
[   19.670967][  T379]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.671176][  T379]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.671357][  T379]  register_netdev (net/core/dev.c:11552)
[   19.671565][  T379]  loopback_net_init (drivers/net/loopback.c:218)
[   19.671805][  T379]  ops_init (net/core/net_namespace.c:137)
[   19.671972][  T379]  setup_net (net/core/net_namespace.c:446)
[   19.672170][  T379]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.672411][  T379]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.672690][  T379]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.672947][  T379]  copy_net_ns (net/core/net_namespace.c:579)
[   19.673196][  T379]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.673454][  T379]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.673729][  T379]  ksys_unshare (kernel/fork.c:3243)
[   19.673936][  T379]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.674180][  T379]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.674425][  T379]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.674703][  T379]  ? __ia32_sys_open (fs/open.c:1374)
[   19.674959][  T379]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.675206][  T379]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.675460][  T379]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.675734][  T379]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.675988][  T379]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.676241][  T379]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.676545][  T379] RIP: 0033:0x7f7395d41bcb
[   19.676829][  T379] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.677618][  T379] RSP: 002b:00007fffd4db2ac8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   19.677994][  T379] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7395d41bcb
[   19.678346][  T379] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.678716][  T379] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.679054][  T379] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd4db4cf0
[   19.679391][  T379] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffd4db687e
| [   19.690771][  T379] ------------[ cut here ]------------
| [   19.690948][  T379] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/379
| [   19.691217][  T379] Modules linked in: ipvtap ipvlan
| [   19.692261][  T379] Tainted: [W]=WARN
[   19.692462][  T379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.692751][  T379] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.693024][  T379] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.693688][  T379] RSP: 0018:ffa0000000d67918 EFLAGS: 00010286
[   19.694072][  T379] RAX: 00000000ffffffa6 RBX: ff110000145c3540 RCX: 1ff40000001acee9
[   19.694525][  T379] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000145c35fc
[   19.694969][  T379] RBP: ff1100000f131000 R08: 1fe22000028b86c1 R09: ff1100000f9e5180
[   19.695410][  T379] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.695893][  T379] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f131000
[   19.696363][  T379] FS:  00007f7395a7f840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   19.696873][  T379] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.697266][  T379] CR2: 00007f7395c86430 CR3: 000000000fa7a003 CR4: 0000000000771ef0
[   19.697768][  T379] PKRU: 55555554
[   19.698093][  T379] Call Trace:
[   19.698415][  T379]  <TASK>
[   19.698707][  T379]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.699074][  T379]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.699431][  T379]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.699740][  T379]  register_netdevice (net/core/dev.c:11488)
[   19.700078][  T379]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.700460][  T379]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.700821][  T379]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.701159][  T379]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.701442][  T379]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.701719][  T379]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.701973][  T379]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.702241][  T379]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   19.702516][  T379]  ops_init (net/core/net_namespace.c:137)
[   19.702746][  T379]  setup_net (net/core/net_namespace.c:446)
[   19.702959][  T379]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.703215][  T379]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.703476][  T379]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.703769][  T379]  copy_net_ns (net/core/net_namespace.c:579)
[   19.704033][  T379]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.704301][  T379]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.704579][  T379]  ksys_unshare (kernel/fork.c:3243)
[   19.704853][  T379]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.705115][  T379]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.705375][  T379]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.705647][  T379]  ? __ia32_sys_open (fs/open.c:1374)
[   19.705925][  T379]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.706185][  T379]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.706446][  T379]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.706722][  T379]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.706985][  T379]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.707246][  T379]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.707565][  T379] RIP: 0033:0x7f7395d41bcb
[   19.707858][  T379] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.708653][  T379] RSP: 002b:00007fffd4db2ac8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   19.709032][  T379] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7395d41bcb
[   19.709394][  T379] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.709793][  T379] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.710161][  T379] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd4db4cf0
[   19.710537][  T379] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffd4db687e
| [   19.716383][  T379] ------------[ cut here ]------------
| [   19.716542][  T379] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/379
| [   19.716782][  T379] Modules linked in: ipvtap ipvlan
| [   19.717199][  T379] Tainted: [W]=WARN
[   19.717300][  T379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.717469][  T379] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.717655][  T379] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.718128][  T379] RSP: 0018:ffa0000000d678f8 EFLAGS: 00010286
[   19.718295][  T379] RAX: 00000000ffffffa6 RBX: ff1100000d6dc740 RCX: 1ff40000001acee5
[   19.718494][  T379] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d6dc7fc
[   19.718696][  T379] RBP: ff11000013099000 R08: 1fe2200001adb901 R09: ff1100000f9e5180
[   19.718895][  T379] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.719100][  T379] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013099000
[   19.719309][  T379] FS:  00007f7395a7f840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   19.719546][  T379] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.719719][  T379] CR2: 00005559e9c93d5c CR3: 000000000fa7a004 CR4: 0000000000771ef0
[   19.719916][  T379] PKRU: 55555554
[   19.720018][  T379] Call Trace:
[   19.720122][  T379]  <TASK>
[   19.720195][  T379]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.720329][  T379]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.720463][  T379]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.720571][  T379]  register_netdevice (net/core/dev.c:11488)
[   19.720713][  T379]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.720879][  T379]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.721014][  T379]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.721146][  T379]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.721286][  T379]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.721423][  T379]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.721562][  T379]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.721701][  T379]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   19.721835][  T379]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   19.721971][  T379]  vti_init_net (net/ipv4/ip_vti.c:517)
[   19.722111][  T379]  ops_init (net/core/net_namespace.c:137)
[   19.722216][  T379]  setup_net (net/core/net_namespace.c:446)
[   19.722318][  T379]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.722448][  T379]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.722586][  T379]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.722731][  T379]  copy_net_ns (net/core/net_namespace.c:579)
[   19.722867][  T379]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.723008][  T379]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.723141][  T379]  ksys_unshare (kernel/fork.c:3243)
[   19.723274][  T379]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.723407][  T379]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.723546][  T379]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.723685][  T379]  ? __ia32_sys_open (fs/open.c:1374)
[   19.723819][  T379]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.723949][  T379]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.724081][  T379]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.724213][  T379]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.724347][  T379]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.724484][  T379]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.724655][  T379] RIP: 0033:0x7f7395d41bcb
[   19.724797][  T379] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.725264][  T379] RSP: 002b:00007fffd4db2ac8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   19.725463][  T379] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7395d41bcb
[   19.725674][  T379] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.725869][  T379] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.726064][  T379] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd4db4cf0
[   19.726260][  T379] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffd4db687e
| [   19.730507][  T379] ------------[ cut here ]------------
| [   19.730659][  T379] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/379
| [   19.730889][  T379] Modules linked in: ipvtap ipvlan
| [   19.731283][  T379] Tainted: [W]=WARN
[   19.731383][  T379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.731552][  T379] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.731731][  T379] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.732207][  T379] RSP: 0018:ffa0000000d67a78 EFLAGS: 00010286
[   19.732374][  T379] RAX: 00000000ffffffa6 RBX: ff1100000d6dde00 RCX: 1ff40000001acf15
[   19.732578][  T379] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d6ddebc
[   19.732783][  T379] RBP: ff11000013cdc000 R08: 1fe2200001adbbd9 R09: ff1100000f9e5180
[   19.732980][  T379] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.733175][  T379] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013cdc000
[   19.733373][  T379] FS:  00007f7395a7f840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   19.733616][  T379] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.733785][  T379] CR2: 00005559e9c93d5c CR3: 000000000fa7a004 CR4: 0000000000771ef0
[   19.733982][  T379] PKRU: 55555554
[   19.734079][  T379] Call Trace:
[   19.734178][  T379]  <TASK>
[   19.734245][  T379]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.734381][  T379]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.734519][  T379]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.734621][  T379]  register_netdevice (net/core/dev.c:11488)
[   19.734760][  T379]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.734923][  T379]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.735058][  T379]  register_netdev (net/core/dev.c:11552)
[   19.735190][  T379]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   19.735327][  T379]  ops_init (net/core/net_namespace.c:137)
[   19.735428][  T379]  setup_net (net/core/net_namespace.c:446)
[   19.735532][  T379]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.735665][  T379]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.735796][  T379]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.735928][  T379]  copy_net_ns (net/core/net_namespace.c:579)
[   19.736071][  T379]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.736207][  T379]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.736339][  T379]  ksys_unshare (kernel/fork.c:3243)
[   19.736471][  T379]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.736607][  T379]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.736745][  T379]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.736878][  T379]  ? __ia32_sys_open (fs/open.c:1374)
[   19.737010][  T379]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.737143][  T379]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.737275][  T379]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.737408][  T379]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.737544][  T379]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.737678][  T379]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.737847][  T379] RIP: 0033:0x7f7395d41bcb
[   19.737985][  T379] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.738453][  T379] RSP: 002b:00007fffd4db2ac8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   19.738657][  T379] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7395d41bcb
[   19.738853][  T379] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.739054][  T379] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.739249][  T379] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd4db4cf0
[   19.739468][  T379] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffd4db687e
| [   19.743684][  T379] ------------[ cut here ]------------
| [   19.743821][  T379] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/379
| [   19.744046][  T379] Modules linked in: ipvtap ipvlan
| [   19.744452][  T379] Tainted: [W]=WARN
[   19.744557][  T379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.744728][  T379] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.744900][  T379] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.745370][  T379] RSP: 0018:ffa0000000d67a68 EFLAGS: 00010286
[   19.745540][  T379] RAX: 00000000ffffffa6 RBX: ff1100000c3198c0 RCX: 1ff40000001acf13
[   19.745740][  T379] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c31997c
[   19.745943][  T379] RBP: ff1100001470c000 R08: 1fe2200001863331 R09: ff1100000f9e5180
[   19.746149][  T379] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.746345][  T379] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001470c000
[   19.746644][  T379] FS:  00007f7395a7f840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   19.746910][  T379] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.747073][  T379] CR2: 00005559e9c93d5c CR3: 000000000fa7a004 CR4: 0000000000771ef0
[   19.747361][  T379] PKRU: 55555554
[   19.747458][  T379] Call Trace:
[   19.747563][  T379]  <TASK>
[   19.747630][  T379]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.747762][  T379]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.747979][  T379]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.748077][  T379]  register_netdevice (net/core/dev.c:11488)
[   19.748208][  T379]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.748372][  T379]  register_netdev (net/core/dev.c:11552)
[   19.748594][  T379]  sit_init_net (net/ipv6/sit.c:1860)
[   19.748733][  T379]  ops_init (net/core/net_namespace.c:137)
[   19.748833][  T379]  setup_net (net/core/net_namespace.c:446)
[   19.748932][  T379]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.749149][  T379]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.749281][  T379]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.749417][  T379]  copy_net_ns (net/core/net_namespace.c:579)
[   19.749555][  T379]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.749694][  T379]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.749826][  T379]  ksys_unshare (kernel/fork.c:3243)
[   19.749956][  T379]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.750087][  T379]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.750309][  T379]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.750442][  T379]  ? __ia32_sys_open (fs/open.c:1374)
[   19.750586][  T379]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.750719][  T379]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.750938][  T379]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.751068][  T379]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.751198][  T379]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.751328][  T379]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.751583][  T379] RIP: 0033:0x7f7395d41bcb
[   19.751725][  T379] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.752293][  T379] RSP: 002b:00007fffd4db2ac8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   19.752495][  T379] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7395d41bcb
[   19.752788][  T379] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.752988][  T379] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.753181][  T379] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd4db4cf0
[   19.753464][  T379] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffd4db687e
| [   19.763502][  T379] ------------[ cut here ]------------
| [   19.763642][  T379] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/379
| [   19.763879][  T379] Modules linked in: ipvtap ipvlan
| [   19.764281][  T379] Tainted: [W]=WARN
[   19.764380][  T379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.764554][  T379] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.764732][  T379] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.765199][  T379] RSP: 0018:ffa0000000d67a78 EFLAGS: 00010286
[   19.765363][  T379] RAX: 00000000ffffffa6 RBX: ff11000013b31000 RCX: 1ff40000001acf15
[   19.765569][  T379] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013b310bc
[   19.765770][  T379] RBP: ff11000013cac000 R08: 1fe2200002766219 R09: ff1100000f9e5180
[   19.765964][  T379] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.766164][  T379] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013cac000
[   19.766368][  T379] FS:  00007f7395a7f840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   19.766602][  T379] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.766771][  T379] CR2: 00005559e9c93d5c CR3: 000000000fa7a004 CR4: 0000000000771ef0
[   19.766969][  T379] PKRU: 55555554
[   19.767067][  T379] Call Trace:
[   19.767166][  T379]  <TASK>
[   19.767238][  T379]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.767368][  T379]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.767507][  T379]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.767699][  T379]  register_netdevice (net/core/dev.c:11488)
[   19.767832][  T379]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.767993][  T379]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.768125][  T379]  register_netdev (net/core/dev.c:11552)
[   19.768260][  T379]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   19.768393][  T379]  ops_init (net/core/net_namespace.c:137)
[   19.768508][  T379]  setup_net (net/core/net_namespace.c:446)
[   19.768609][  T379]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.768828][  T379]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.768962][  T379]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.769093][  T379]  copy_net_ns (net/core/net_namespace.c:579)
[   19.769228][  T379]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.769367][  T379]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.769503][  T379]  ksys_unshare (kernel/fork.c:3243)
[   19.769635][  T379]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.769771][  T379]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.769905][  T379]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.770041][  T379]  ? __ia32_sys_open (fs/open.c:1374)
[   19.770174][  T379]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.770303][  T379]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.770434][  T379]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.770659][  T379]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.770790][  T379]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.770922][  T379]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.771085][  T379] RIP: 0033:0x7f7395d41bcb
[   19.771220][  T379] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.771796][  T379] RSP: 002b:00007fffd4db2ac8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   19.771993][  T379] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7395d41bcb
[   19.772187][  T379] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.772383][  T379] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.772583][  T379] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd4db4cf0
[   19.772871][  T379] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffd4db687e
| [   19.801282][  T380] ------------[ cut here ]------------
| [   19.801431][  T380] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/380
| [   19.801670][  T380] Modules linked in: ipvtap ipvlan
| [   19.802069][  T380] Tainted: [W]=WARN
[   19.802166][  T380] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.802330][  T380] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.802501][  T380] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.802966][  T380] RSP: 0018:ffa0000000d87020 EFLAGS: 00010286
[   19.803130][  T380] RAX: 00000000ffffffa6 RBX: ff11000013b318c0 RCX: 1ff40000001b0dca
[   19.803321][  T380] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013b3197c
[   19.803522][  T380] RBP: ff110000139d9000 R08: 1fe2200002766331 R09: ff1100000f710b58
[   19.803719][  T380] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   19.803918][  T380] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   19.804117][  T380] FS:  00007fd609084840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   19.804341][  T380] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.804507][  T380] CR2: 000000002c6a3988 CR3: 00000000121ff003 CR4: 0000000000771ef0
[   19.804703][  T380] PKRU: 55555554
[   19.804799][  T380] Call Trace:
[   19.804893][  T380]  <TASK>
[   19.804959][  T380]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.805089][  T380]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.805188][  T380]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   19.805316][  T380]  __dev_notify_flags (net/core/dev.c:9787)
[   19.805446][  T380]  ? netif_change_name (net/core/dev.c:1495)
[   19.805578][  T380]  ? __dev_change_flags (net/core/dev.c:9752)
[   19.805716][  T380]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   19.805844][  T380]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.805974][  T380]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   19.806104][  T380]  netif_change_flags (net/core/dev.c:9820)
[   19.806233][  T380]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   19.806361][  T380]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   19.806496][  T380]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   19.806628][  T380]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   19.806792][  T380]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.806922][  T380]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.807050][  T380]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   19.807179][  T380]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.807309][  T380]  ? __kernel_text_address (kernel/extable.c:79)
[   19.807440][  T380]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.807578][  T380]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.807712][  T380]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   19.807840][  T380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.807968][  T380]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.808098][  T380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.808226][  T380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.808353][  T380]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   19.808490][  T380]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   19.808622][  T380]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   19.808756][  T380]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   19.808890][  T380]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   19.809021][  T380]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   19.809152][  T380]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   19.809283][  T380]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.809412][  T380]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.809545][  T380]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.809679][  T380]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   19.809812][  T380]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.809948][  T380]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.810082][  T380]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.810210][  T380]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.810341][  T380]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.810472][  T380]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.810605][  T380]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   19.810740][  T380]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.810868][  T380]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.810995][  T380]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.811134][  T380]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.811262][  T380]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.811396][  T380]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   19.812222][  T380]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.812351][  T380]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.812488][  T380]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   19.812615][  T380]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   19.812751][  T380]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.812880][  T380]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.813008][  T380]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.813138][  T380]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   19.813267][  T380]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   19.813396][  T380]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   19.813531][  T380]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   19.813665][  T380]  ? copy_msghdr_from_user (net/socket.c:2635)
[   19.813825][  T380]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   19.813987][  T380]  ? move_addr_to_kernel (net/socket.c:258)
[   19.814118][  T380]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.814246][  T380]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.814376][  T380]  ___sys_sendmsg (net/socket.c:2752)
[   19.814508][  T380]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   19.814670][  T380]  ? copy_msghdr_from_user (net/socket.c:2603)
[   19.814810][  T380]  __sys_sendmsg (net/socket.c:2784)
[   19.814937][  T380]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   19.815064][  T380]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   19.815227][  T380]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.815358][  T380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.815490][  T380]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.815617][  T380]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.815752][  T380]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.815880][  T380]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.816039][  T380] RIP: 0033:0x7fd6092be08e
[   19.816174][  T380] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   19.816633][  T380] RSP: 002b:00007ffd33344850 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.816829][  T380] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6092be08e
[   19.817022][  T380] RDX: 0000000000000000 RSI: 00007ffd33344900 RDI: 0000000000000005
[   19.817212][  T380] RBP: 00007ffd33344860 R08: 0000000000000000 R09: 0000000000000000
[   19.817402][  T380] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacb
[   19.817597][  T380] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd33344fd0
| [   20.004165][  T383] ------------[ cut here ]------------
| [   20.004463][  T383] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/383
| [   20.004911][  T383] Modules linked in: ipvtap ipvlan
| [   20.005646][  T383] Tainted: [W]=WARN
[   20.005870][  T383] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.006181][  T383] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.006515][  T383] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.007520][  T383] RSP: 0018:ffa0000000da70b0 EFLAGS: 00010286
[   20.007839][  T383] RAX: 00000000ffffffa6 RBX: ff1100000569aac0 RCX: 1ff40000001b4ddc
[   20.008200][  T383] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000569ab7c
[   20.008566][  T383] RBP: ff11000007edc000 R08: 1fe2200000ad3571 R09: ff1100000f698b80
[   20.008949][  T383] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   20.009315][  T383] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   20.009701][  T383] FS:  00007f18bf78f840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   20.010121][  T383] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.010426][  T383] CR2: 0000000000445730 CR3: 00000000106ba006 CR4: 0000000000771ef0
[   20.010818][  T383] PKRU: 55555554
[   20.011029][  T383] Call Trace:
[   20.011236][  T383]  <TASK>
[   20.011397][  T383]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.011685][  T383]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   20.011950][  T383]  notifier_call_chain (kernel/notifier.c:85)
[   20.012213][  T383]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   20.012475][  T383]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.012762][  T383]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   20.013020][  T383]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   20.013233][  T383]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   20.013550][  T383]  ? ida_destroy (lib/idr.c:623)
[   20.013848][  T383]  netdev_upper_dev_link (net/core/dev.c:8972)
[   20.014121][  T383]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   20.014395][  T383] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   20.014695][  T383]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   20.014963][  T383]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   20.015236][  T383] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   20.015517][  T383]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   20.015804][  T383]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   20.016073][  T383]  ? __dev_get_by_name (net/core/dev.c:883)
[   20.016339][  T383]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   20.016628][  T383]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   20.016786][    C0] clocksource: Watchdog remote CPU 2 read timed out
[   20.016925][  T383]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.017451][  T383]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.017739][  T383]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.018007][  T383]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.018270][  T383]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   20.018540][  T383]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.018829][  T383]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.019101][  T383]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.019367][  T383]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.019644][  T383]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.019930][  T383]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.020197][  T383]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.020467][  T383]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.020756][  T383]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.021026][  T383]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.021295][  T383]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.021577][  T383]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.021871][  T383]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.022135][  T383]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.022409][  T383]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.022717][  T383]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.022993][  T383]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.023273][  T383]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   20.023551][  T383]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   20.023841][  T383]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   20.024118][  T383]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   20.024390][  T383]  ? copy_msghdr_from_user (net/socket.c:2635)
[   20.024694][  T383]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   20.025012][  T383]  ? move_addr_to_kernel (net/socket.c:258)
[   20.025284][  T383]  ___sys_sendmsg (net/socket.c:2752)
[   20.025557][  T383]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.025838][  T383]  ? copy_msghdr_from_user (net/socket.c:2603)
[   20.026121][  T383]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   20.026394][  T383]  __sys_sendmsg (net/socket.c:2784)
[   20.026689][  T383]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   20.026967][  T383]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.027233][  T383]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.027509][  T383]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.027799][  T383]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.028066][  T383]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.028337][  T383]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.028682][  T383] RIP: 0033:0x7f18bf9c908e
[   20.028960][  T383] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.029795][  T383] RSP: 002b:00007fffd1b387c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.030169][  T383] RAX: ffffffffffffffda RBX: 00007fffd1b38f78 RCX: 00007f18bf9c908e
[   20.030547][  T383] RDX: 0000000000000000 RSI: 00007fffd1b38870 RDI: 0000000000000005
[   20.030934][  T383] RBP: 00007fffd1b387d0 R08: 0000000000000000 R09: 0000000000000000
[   20.031304][  T383] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacb
[   20.031710][  T383] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffd1b38f30
| [   20.034779][  T383] ------------[ cut here ]------------
| [   20.035029][  T383] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/383
| [   20.035430][  T383] Modules linked in: ipvtap ipvlan
| [   20.036399][  T383] Tainted: [W]=WARN
[   20.036615][  T383] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.036943][  T383] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.037260][  T383] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.038063][  T383] RSP: 0018:ffa0000000da71b0 EFLAGS: 00010286
[   20.038373][  T383] RAX: 00000000ffffffa6 RBX: ff1100000569a900 RCX: 1ff40000001b4dfc
[   20.038751][  T383] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000569a9bc
[   20.039104][  T383] RBP: ff11000014852000 R08: 1fe2200000ad3539 R09: ff1100000f698b80
[   20.039464][  T383] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.039844][  T383] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   20.040199][  T383] FS:  00007f18bf78f840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   20.040616][  T383] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.040942][  T383] CR2: 0000000000445730 CR3: 00000000106ba006 CR4: 0000000000771ef0
[   20.041296][  T383] PKRU: 55555554
[   20.041509][  T383] Call Trace:
[   20.041733][  T383]  <TASK>
[   20.041894][  T383]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.042154][  T383]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.042360][  T383]  ? ida_destroy (lib/idr.c:623)
[   20.042627][  T383]  __dev_notify_flags (net/core/dev.c:9787)
[   20.042907][  T383]  ? netif_change_name (net/core/dev.c:1495)
[   20.043164][  T383]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.043419][  T383]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   20.043750][  T383]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   20.044050][  T383]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   20.044304][  T383]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   20.044573][  T383]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   20.044851][  T383]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   20.045114][  T383]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   20.045376][  T383]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   20.045645][  T383]  ? __dev_get_by_name (net/core/dev.c:883)
[   20.045913][  T383]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   20.046178][  T383]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   20.046441][  T383]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.046722][  T383]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.046977][  T383]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.047230][  T383]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.047493][  T383]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   20.047761][  T383]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.048024][  T383]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.048280][  T383]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.048542][  T383]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.048818][  T383]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.049070][  T383]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.049324][  T383]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.049595][  T383]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.049868][  T383]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.050129][  T383]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.050386][  T383]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.050676][  T383]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.050950][  T383]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.051206][  T383]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.051470][  T383]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.051755][  T383]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.052011][  T383]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.052268][  T383]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   20.052534][  T383]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   20.052813][  T383]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   20.053071][  T383]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   20.053326][  T383]  ? copy_msghdr_from_user (net/socket.c:2635)
[   20.053589][  T383]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   20.053908][  T383]  ? move_addr_to_kernel (net/socket.c:258)
[   20.054175][  T383]  ___sys_sendmsg (net/socket.c:2752)
[   20.054432][  T383]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.054714][  T383]  ? copy_msghdr_from_user (net/socket.c:2603)
[   20.054990][  T383]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   20.055249][  T383]  __sys_sendmsg (net/socket.c:2784)
[   20.055512][  T383]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   20.055795][  T383]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.056049][  T383]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.056291][  T383]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.056545][  T383]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.056812][  T383]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.057060][  T383]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.057361][  T383] RIP: 0033:0x7f18bf9c908e
[   20.057631][  T383] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.058231][  T383] RSP: 002b:00007fffd1b387c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.058480][  T383] RAX: ffffffffffffffda RBX: 00007fffd1b38f78 RCX: 00007f18bf9c908e
[   20.058749][  T383] RDX: 0000000000000000 RSI: 00007fffd1b38870 RDI: 0000000000000005
[   20.058995][  T383] RBP: 00007fffd1b387d0 R08: 0000000000000000 R09: 0000000000000000
[   20.059238][  T383] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacb
[   20.059493][  T383] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffd1b38f30
| [   20.107544][  T385] ------------[ cut here ]------------
| [   20.107750][  T385] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/385
| [   20.108031][  T385] Modules linked in: ipvtap ipvlan
| [   20.108532][  T385] Tainted: [W]=WARN
[   20.108692][  T385] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.108902][  T385] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.109118][  T385] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.109638][  T385] RSP: 0018:ffa0000000db7a80 EFLAGS: 00010286
[   20.109862][  T385] RAX: 00000000ffffffa6 RBX: ff1100000df8e200 RCX: 1ff40000001b6f16
[   20.110105][  T385] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df8e2bc
[   20.110347][  T385] RBP: ff110000105c9000 R08: 1fe2200001bf1c59 R09: ff1100000f69d180
[   20.110592][  T385] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.110844][  T385] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000105c9000
[   20.111086][  T385] FS:  00007f796936e840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   20.111363][  T385] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.111581][  T385] CR2: 00007f796956fc20 CR3: 0000000012084002 CR4: 0000000000771ef0
[   20.111831][  T385] PKRU: 55555554
[   20.111974][  T385] Call Trace:
[   20.112118][  T385]  <TASK>
[   20.112234][  T385]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.112422][  T385]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.112612][  T385]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.112786][  T385]  register_netdevice (net/core/dev.c:11488)
[   20.112966][  T385]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.113178][  T385]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.113360][  T385]  register_netdev (net/core/dev.c:11552)
[   20.113551][  T385]  loopback_net_init (drivers/net/loopback.c:218)
[   20.113747][  T385]  ops_init (net/core/net_namespace.c:137)
[   20.113896][  T385]  setup_net (net/core/net_namespace.c:446)
[   20.114042][  T385]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.114217][  T385]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.114394][  T385]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.114610][  T385]  copy_net_ns (net/core/net_namespace.c:579)
[   20.114805][  T385]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.114997][  T385]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.115177][  T385]  ksys_unshare (kernel/fork.c:3243)
[   20.115355][  T385]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.115542][  T385]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.115734][  T385]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.115924][  T385]  ? __ia32_sys_open (fs/open.c:1374)
[   20.116105][  T385]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.116282][  T385]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.116460][  T385]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.116645][  T385]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.116841][  T385]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.117019][  T385]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.117228][  T385] RIP: 0033:0x7f7969630bcb
[   20.117410][  T385] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.117947][  T385] RSP: 002b:00007ffe5b770d48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.118190][  T385] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7969630bcb
[   20.118429][  T385] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.118696][  T385] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.118940][  T385] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe5b772f70
[   20.119179][  T385] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5b77387e
| [   20.124089][  T385] ------------[ cut here ]------------
| [   20.124263][  T385] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/385
| [   20.124559][  T385] Modules linked in: ipvtap ipvlan
| [   20.125059][  T385] Tainted: [W]=WARN
[   20.125203][  T385] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.125416][  T385] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.125648][  T385] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.126193][  T385] RSP: 0018:ffa0000000db7918 EFLAGS: 00010286
[   20.126400][  T385] RAX: 00000000ffffffa6 RBX: ff11000009a7c580 RCX: 1ff40000001b6ee9
[   20.126647][  T385] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a7c63c
[   20.127462][  T385] RBP: ff11000014a71000 R08: 1fe220000134f8c9 R09: ff1100000f69d180
[   20.127779][  T385] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.128070][  T385] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000014a71000
[   20.128362][  T385] FS:  00007f796936e840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   20.128725][  T385] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.128991][  T385] CR2: 00007f796956fc20 CR3: 0000000012084002 CR4: 0000000000771ef0
[   20.129289][  T385] PKRU: 55555554
[   20.129492][  T385] Call Trace:
[   20.129704][  T385]  <TASK>
[   20.129872][  T385]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.130121][  T385]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.130352][  T385]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.130557][  T385]  register_netdevice (net/core/dev.c:11488)
[   20.130806][  T385]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.131067][  T385]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.131298][  T385]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   20.131535][  T385]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   20.131797][  T385]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   20.132031][  T385]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   20.132262][  T385]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   20.132505][  T385]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   20.132748][  T385]  ops_init (net/core/net_namespace.c:137)
[   20.132949][  T385]  setup_net (net/core/net_namespace.c:446)
[   20.133150][  T385]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.133389][  T385]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.133581][  T385]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.133780][  T385]  copy_net_ns (net/core/net_namespace.c:579)
[   20.133964][  T385]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.134152][  T385]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.134331][  T385]  ksys_unshare (kernel/fork.c:3243)
[   20.134534][  T385]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.134725][  T385]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.134902][  T385]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.135079][  T385]  ? __ia32_sys_open (fs/open.c:1374)
[   20.135258][  T385]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.135437][  T385]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.135621][  T385]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.135828][  T385]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.136005][  T385]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.136182][  T385]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.136387][  T385] RIP: 0033:0x7f7969630bcb
[   20.136575][  T385] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.137109][  T385] RSP: 002b:00007ffe5b770d48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.137349][  T385] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7969630bcb
[   20.137592][  T385] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.137844][  T385] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.138097][  T385] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe5b772f70
[   20.138333][  T385] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5b77387e
| [   20.148857][  T385] ------------[ cut here ]------------
| [   20.149053][  T385] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/385
| [   20.149333][  T385] Modules linked in: ipvtap ipvlan
| [   20.149865][  T385] Tainted: [W]=WARN
[   20.150019][  T385] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.150240][  T385] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.150467][  T385] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.151555][  T385] RSP: 0018:ffa0000000db78f8 EFLAGS: 00010286
[   20.151850][  T385] RAX: 00000000ffffffa6 RBX: ff11000005f19e00 RCX: 1ff40000001b6ee5
[   20.152170][  T385] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005f19ebc
[   20.152473][  T385] RBP: ff11000013154000 R08: 1fe2200000be33d9 R09: ff1100000f69d180
[   20.152799][  T385] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.153101][  T385] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013154000
[   20.153400][  T385] FS:  00007f796936e840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   20.153760][  T385] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.154028][  T385] CR2: 00007f796956fc20 CR3: 0000000012084002 CR4: 0000000000771ef0
[   20.154333][  T385] PKRU: 55555554
[   20.154543][  T385] Call Trace:
[   20.154763][  T385]  <TASK>
[   20.154935][  T385]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.155169][  T385]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.155404][  T385]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.155618][  T385]  register_netdevice (net/core/dev.c:11488)
[   20.155869][  T385]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.156137][  T385]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.156375][  T385]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   20.156622][  T385]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   20.156867][  T385]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   20.157107][  T385]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   20.157347][  T385]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   20.157587][  T385]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   20.157811][  T385]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   20.157997][  T385]  vti_init_net (net/ipv4/ip_vti.c:517)
[   20.158184][  T385]  ops_init (net/core/net_namespace.c:137)
[   20.158332][  T385]  setup_net (net/core/net_namespace.c:446)
[   20.158480][  T385]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.158681][  T385]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.158864][  T385]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.159050][  T385]  copy_net_ns (net/core/net_namespace.c:579)
[   20.159240][  T385]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.159427][  T385]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.159622][  T385]  ksys_unshare (kernel/fork.c:3243)
[   20.159821][  T385]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.160005][  T385]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.160187][  T385]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.160369][  T385]  ? __ia32_sys_open (fs/open.c:1374)
[   20.160568][  T385]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.160764][  T385]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.160943][  T385]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.161121][  T385]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.161298][  T385]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.161479][  T385]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.161715][  T385] RIP: 0033:0x7f7969630bcb
[   20.161905][  T385] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.162433][  T385] RSP: 002b:00007ffe5b770d48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.162702][  T385] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7969630bcb
[   20.162949][  T385] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.163191][  T385] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.163432][  T385] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe5b772f70
[   20.163693][  T385] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5b77387e
| [   20.168719][  T385] ------------[ cut here ]------------
| [   20.168896][  T385] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/385
| [   20.169171][  T385] Modules linked in: ipvtap ipvlan
| [   20.169684][  T385] Tainted: [W]=WARN
[   20.169829][  T385] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.170035][  T385] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.170252][  T385] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.171328][  T385] RSP: 0018:ffa0000000db7a78 EFLAGS: 00010286
[   20.171612][  T385] RAX: 00000000ffffffa6 RBX: ff1100000df8f380 RCX: 1ff40000001b6f15
[   20.171917][  T385] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df8f43c
[   20.172212][  T385] RBP: ff11000014a8c000 R08: 1fe2200001bf1e89 R09: ff1100000f69d180
[   20.172514][  T385] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.172819][  T385] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000014a8c000
[   20.173123][  T385] FS:  00007f796936e840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   20.173451][  T385] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.173730][  T385] CR2: 00007f796956fc20 CR3: 0000000012084002 CR4: 0000000000771ef0
[   20.174029][  T385] PKRU: 55555554
[   20.174228][  T385] Call Trace:
[   20.174423][  T385]  <TASK>
[   20.174600][  T385]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.174845][  T385]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.175084][  T385]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.175288][  T385]  register_netdevice (net/core/dev.c:11488)
[   20.175536][  T385]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.175816][  T385]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.176050][  T385]  register_netdev (net/core/dev.c:11552)
[   20.176258][  T385]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   20.176437][  T385]  ops_init (net/core/net_namespace.c:137)
[   20.176598][  T385]  setup_net (net/core/net_namespace.c:446)
[   20.176759][  T385]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.176947][  T385]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.177128][  T385]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.177310][  T385]  copy_net_ns (net/core/net_namespace.c:579)
[   20.177497][  T385]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.177691][  T385]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.177871][  T385]  ksys_unshare (kernel/fork.c:3243)
[   20.178048][  T385]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.178225][  T385]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.178403][  T385]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.178594][  T385]  ? __ia32_sys_open (fs/open.c:1374)
[   20.178789][  T385]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.178971][  T385]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.179151][  T385]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.179334][  T385]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.179522][  T385]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.179722][  T385]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.179937][  T385] RIP: 0033:0x7f7969630bcb
[   20.180125][  T385] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.180670][  T385] RSP: 002b:00007ffe5b770d48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.180919][  T385] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7969630bcb
[   20.181159][  T385] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.181397][  T385] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.181689][  T385] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe5b772f70
[   20.181927][  T385] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5b77387e
| [   20.186545][  T385] ------------[ cut here ]------------
| [   20.186730][  T385] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/385
| [   20.186997][  T385] Modules linked in: ipvtap ipvlan
| [   20.187495][  T385] Tainted: [W]=WARN
[   20.187640][  T385] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.187860][  T385] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.188074][  T385] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.188585][  T385] RSP: 0018:ffa0000000db7a68 EFLAGS: 00010286
[   20.188805][  T385] RAX: 00000000ffffffa6 RBX: ff11000013064ac0 RCX: 1ff40000001b6f13
[   20.189042][  T385] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013064b7c
[   20.189278][  T385] RBP: ff11000014ac1000 R08: 1fe220000260c971 R09: ff1100000f69d180
[   20.189530][  T385] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.190294][  T385] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000014ac1000
[   20.190599][  T385] FS:  00007f796936e840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   20.190940][  T385] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.191205][  T385] CR2: 00007f796956fc20 CR3: 0000000012084002 CR4: 0000000000771ef0
[   20.191509][  T385] PKRU: 55555554
[   20.191718][  T385] Call Trace:
[   20.191914][  T385]  <TASK>
[   20.192081][  T385]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.192310][  T385]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.192557][  T385]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.192772][  T385]  register_netdevice (net/core/dev.c:11488)
[   20.193007][  T385]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.193271][  T385]  register_netdev (net/core/dev.c:11552)
[   20.193509][  T385]  sit_init_net (net/ipv6/sit.c:1860)
[   20.193755][  T385]  ops_init (net/core/net_namespace.c:137)
[   20.193954][  T385]  setup_net (net/core/net_namespace.c:446)
[   20.194152][  T385]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.194382][  T385]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.194618][  T385]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.194867][  T385]  copy_net_ns (net/core/net_namespace.c:579)
[   20.195098][  T385]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.195329][  T385]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.195564][  T385]  ksys_unshare (kernel/fork.c:3243)
[   20.195801][  T385]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.195979][  T385]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.196160][  T385]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.196337][  T385]  ? __ia32_sys_open (fs/open.c:1374)
[   20.196525][  T385]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.196714][  T385]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.196891][  T385]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.197071][  T385]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.197246][  T385]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.197423][  T385]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.197642][  T385] RIP: 0033:0x7f7969630bcb
[   20.197836][  T385] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.198369][  T385] RSP: 002b:00007ffe5b770d48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.198617][  T385] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7969630bcb
[   20.198868][  T385] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.199107][  T385] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.199347][  T385] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe5b772f70
[   20.199592][  T385] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5b77387e
| [   20.204827][  T385] ------------[ cut here ]------------
| [   20.205028][  T385] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/385
| [   20.205300][  T385] Modules linked in: ipvtap ipvlan
| [   20.205808][  T385] Tainted: [W]=WARN
[   20.205973][  T385] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.206181][  T385] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.206400][  T385] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.207453][  T385] RSP: 0018:ffa0000000db7a78 EFLAGS: 00010286
[   20.207758][  T385] RAX: 00000000ffffffa6 RBX: ff11000013040040 RCX: 1ff40000001b6f15
[   20.208059][  T385] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000130400fc
[   20.208353][  T385] RBP: ff11000014ae4000 R08: 1fe2200002608021 R09: ff1100000f69d180
[   20.208718][  T385] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.209028][  T385] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000014ae4000
[   20.209321][  T385] FS:  00007f796936e840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   20.209671][  T385] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.209933][  T385] CR2: 00007f796956fc20 CR3: 0000000012084002 CR4: 0000000000771ef0
[   20.210228][  T385] PKRU: 55555554
[   20.210444][  T385] Call Trace:
[   20.210647][  T385]  <TASK>
[   20.210875][  T385]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.211142][  T385]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.211378][  T385]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.211585][  T385]  register_netdevice (net/core/dev.c:11488)
[   20.211827][  T385]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.212116][  T385]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.212349][  T385]  register_netdev (net/core/dev.c:11552)
[   20.212555][  T385]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   20.212750][  T385]  ops_init (net/core/net_namespace.c:137)
[   20.212897][  T385]  setup_net (net/core/net_namespace.c:446)
[   20.213044][  T385]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.213230][  T385]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.213424][  T385]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.213611][  T385]  copy_net_ns (net/core/net_namespace.c:579)
[   20.213805][  T385]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.213989][  T385]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.214167][  T385]  ksys_unshare (kernel/fork.c:3243)
[   20.214342][  T385]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.214526][  T385]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.214735][  T385]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.214916][  T385]  ? __ia32_sys_open (fs/open.c:1374)
[   20.215098][  T385]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.215275][  T385]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.215454][  T385]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.215639][  T385]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.215845][  T385]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.216021][  T385]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.216228][  T385] RIP: 0033:0x7f7969630bcb
[   20.216410][  T385] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.216945][  T385] RSP: 002b:00007ffe5b770d48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.217186][  T385] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7969630bcb
[   20.217425][  T385] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.217685][  T385] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.217940][  T385] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe5b772f70
[   20.218177][  T385] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe5b77387e
| [   20.250992][  T386] ------------[ cut here ]------------
| [   20.251166][  T386] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/386
| [   20.251406][  T386] Modules linked in: ipvtap ipvlan
| [   20.251826][  T386] Tainted: [W]=WARN
[   20.251926][  T386] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.252088][  T386] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.252263][  T386] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.253373][  T386] RSP: 0018:ffa0000000dc7020 EFLAGS: 00010286
[   20.253544][  T386] RAX: 00000000ffffffa6 RBX: ff11000013041c40 RCX: 1ff40000001b8dca
[   20.253744][  T386] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013041cfc
[   20.253933][  T386] RBP: ff110000105c9000 R08: 1fe22000026083a1 R09: ff1100000faa0b58
[   20.254121][  T386] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   20.254310][  T386] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   20.254510][  T386] FS:  00007f200e6aa840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   20.254739][  T386] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.254899][  T386] CR2: 000000001a166988 CR3: 0000000012085005 CR4: 0000000000771ef0
[   20.255091][  T386] PKRU: 55555554
[   20.255187][  T386] Call Trace:
[   20.255284][  T386]  <TASK>
[   20.255350][  T386]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.255489][  T386]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.255591][  T386]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   20.255731][  T386]  __dev_notify_flags (net/core/dev.c:9787)
[   20.255867][  T386]  ? netif_change_name (net/core/dev.c:1495)
[   20.255998][  T386]  ? __dev_change_flags (net/core/dev.c:9752)
[   20.256128][  T386]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   20.256261][  T386]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.256393][  T386]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   20.256533][  T386]  netif_change_flags (net/core/dev.c:9820)
[   20.256755][  T386]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   20.256893][  T386]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   20.257028][  T386]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   20.257160][  T386]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   20.257328][  T386]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.257460][  T386]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.257594][  T386]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.257729][  T386]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.257860][  T386]  ? __kernel_text_address (kernel/extable.c:79)
[   20.257989][  T386]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.258121][  T386]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.258248][  T386]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   20.258376][  T386]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.258509][  T386]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.258637][  T386]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.258768][  T386]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.258898][  T386]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   20.259027][  T386]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   20.259156][  T386]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   20.259285][  T386]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   20.259414][  T386]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   20.259552][  T386]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   20.259690][  T386]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.259825][  T386]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.259954][  T386]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.260081][  T386]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.260210][  T386]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   20.260343][  T386]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.260479][  T386]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.260610][  T386]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.260744][  T386]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.260876][  T386]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.261009][  T386]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.261141][  T386]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.261276][  T386]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.261409][  T386]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.261547][  T386]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.261683][  T386]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.261810][  T386]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.261938][  T386]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.262067][  T386]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.262195][  T386]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.262327][  T386]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.262455][  T386]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.262591][  T386]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.262726][  T386]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.262873][  T386]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.263002][  T386]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   20.263132][  T386]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   20.263261][  T386]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   20.263392][  T386]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   20.263528][  T386]  ? copy_msghdr_from_user (net/socket.c:2635)
[   20.263668][  T386]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   20.263826][  T386]  ? move_addr_to_kernel (net/socket.c:258)
[   20.263955][  T386]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.264085][  T386]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.264213][  T386]  ___sys_sendmsg (net/socket.c:2752)
[   20.264341][  T386]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   20.264512][  T386]  ? copy_msghdr_from_user (net/socket.c:2603)
[   20.264659][  T386]  __sys_sendmsg (net/socket.c:2784)
[   20.264788][  T386]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   20.264915][  T386]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   20.265076][  T386]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   20.265204][  T386]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.265335][  T386]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.265469][  T386]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.265601][  T386]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.265734][  T386]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.265893][  T386] RIP: 0033:0x7f200e8e408e
[   20.266027][  T386] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.266494][  T386] RSP: 002b:00007fffefb12420 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.266693][  T386] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f200e8e408e
[   20.266884][  T386] RDX: 0000000000000000 RSI: 00007fffefb124d0 RDI: 0000000000000005
[   20.267088][  T386] RBP: 00007fffefb12430 R08: 0000000000000000 R09: 0000000000000000
[   20.267288][  T386] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacb
[   20.267481][  T386] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffefb12ba0
| [   20.407045][  T389] ------------[ cut here ]------------
| [   20.407276][  T389] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/389
| [   20.407588][  T389] Modules linked in: ipvtap ipvlan
| [   20.408145][  T389] Tainted: [W]=WARN
[   20.408298][  T389] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.408527][  T389] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.408772][  T389] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.409325][  T389] RSP: 0018:ffa0000000df70b0 EFLAGS: 00010286
[   20.409560][  T389] RAX: 00000000ffffffa6 RBX: ff11000012914900 RCX: 1ff40000001beddc
[   20.409828][  T389] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000129149bc
[   20.410085][  T389] RBP: ff11000007edc000 R08: 1fe2200002522939 R09: ff1100000ebfae80
[   20.410342][  T389] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   20.410601][  T389] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   20.410985][  T389] FS:  00007fb4c1a2c840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   20.411335][  T389] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.411643][  T389] CR2: 0000000000445730 CR3: 0000000012137002 CR4: 0000000000771ef0
[   20.411988][  T389] PKRU: 55555554
[   20.412234][  T389] Call Trace:
[   20.412439][  T389]  <TASK>
[   20.412564][  T389]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.412770][  T389]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   20.412960][  T389]  notifier_call_chain (kernel/notifier.c:85)
[   20.413152][  T389]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   20.413338][  T389]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.413533][  T389]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   20.413735][  T389]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   20.413892][  T389]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   20.414120][  T389]  ? ida_destroy (lib/idr.c:623)
[   20.414309][  T389]  netdev_upper_dev_link (net/core/dev.c:8972)
[   20.414504][  T389]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   20.414704][  T389] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   20.414896][  T389]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   20.415082][  T389]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   20.415272][  T389] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   20.415463][  T389]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   20.415672][  T389]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   20.415861][  T389]  ? __dev_get_by_name (net/core/dev.c:883)
[   20.416050][  T389]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   20.416243][  T389]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   20.416435][  T389]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.416636][  T389]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.416843][  T389]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.417031][  T389]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.417220][  T389]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   20.417406][  T389]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.417605][  T389]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.417806][  T389]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.417995][  T389]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.418188][  T389]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.418374][  T389]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.418567][  T389]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.418769][  T389]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.418955][  T389]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.419146][  T389]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.419332][  T389]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.419530][  T389]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.419741][  T389]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.419933][  T389]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.420123][  T389]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.420311][  T389]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.420506][  T389]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.420707][  T389]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   20.420899][  T389]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   20.421088][  T389]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   20.421281][  T389]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   20.421469][  T389]  ? copy_msghdr_from_user (net/socket.c:2635)
[   20.421677][  T389]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   20.421897][  T389]  ? move_addr_to_kernel (net/socket.c:258)
[   20.422090][  T389]  ___sys_sendmsg (net/socket.c:2752)
[   20.422276][  T389]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.422464][  T389]  ? copy_msghdr_from_user (net/socket.c:2603)
[   20.422686][  T389]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   20.422876][  T389]  __sys_sendmsg (net/socket.c:2784)
[   20.423066][  T389]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   20.423257][  T389]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.423445][  T389]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.423645][  T389]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.423849][  T389]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.424040][  T389]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.424232][  T389]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.424455][  T389] RIP: 0033:0x7fb4c1c6608e
[   20.424670][  T389] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.425213][  T389] RSP: 002b:00007ffe8bedeab0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.425473][  T389] RAX: ffffffffffffffda RBX: 00007ffe8bedf268 RCX: 00007fb4c1c6608e
[   20.425753][  T389] RDX: 0000000000000000 RSI: 00007ffe8bedeb60 RDI: 0000000000000005
[   20.426011][  T389] RBP: 00007ffe8bedeac0 R08: 0000000000000000 R09: 0000000000000000
[   20.426268][  T389] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacb
[   20.426532][  T389] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe8bedf220
| [   20.428649][  T389] ------------[ cut here ]------------
| [   20.428801][  T389] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/389
| [   20.429030][  T389] Modules linked in: ipvtap ipvlan
| [   20.429439][  T389] Tainted: [W]=WARN
[   20.429545][  T389] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.429723][  T389] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.429897][  T389] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.430369][  T389] RSP: 0018:ffa0000000df71b0 EFLAGS: 00010286
[   20.430544][  T389] RAX: 00000000ffffffa6 RBX: ff1100000d7ac3c0 RCX: 1ff40000001bedfc
[   20.430750][  T389] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7ac47c
[   20.430946][  T389] RBP: ff11000013c3a000 R08: 1fe2200001af5891 R09: ff1100000ebfae80
[   20.431142][  T389] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.431341][  T389] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   20.431549][  T389] FS:  00007fb4c1a2c840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   20.431789][  T389] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.431955][  T389] CR2: 00007fb6c0e93000 CR3: 0000000012137006 CR4: 0000000000771ef0
[   20.432154][  T389] PKRU: 55555554
[   20.432255][  T389] Call Trace:
[   20.432356][  T389]  <TASK>
[   20.432426][  T389]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.432564][  T389]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.432668][  T389]  ? ida_destroy (lib/idr.c:623)
[   20.432803][  T389]  __dev_notify_flags (net/core/dev.c:9787)
[   20.432937][  T389]  ? netif_change_name (net/core/dev.c:1495)
[   20.433071][  T389]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.433205][  T389]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   20.433374][  T389]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   20.433543][  T389]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   20.433686][  T389]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   20.433822][  T389]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   20.433956][  T389]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   20.434090][  T389]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   20.434227][  T389]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   20.434360][  T389]  ? __dev_get_by_name (net/core/dev.c:883)
[   20.434496][  T389]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   20.434638][  T389]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   20.434783][  T389]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.434919][  T389]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.435054][  T389]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.435189][  T389]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.435323][  T389]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   20.435457][  T389]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.435601][  T389]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.435743][  T389]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.435880][  T389]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.436016][  T389]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.436152][  T389]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.436285][  T389]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.436421][  T389]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.436559][  T389]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.436700][  T389]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.436834][  T389]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.436968][  T389]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.437104][  T389]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.437237][  T389]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.437374][  T389]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.437515][  T389]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.437648][  T389]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.437790][  T389]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   20.437925][  T389]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   20.438060][  T389]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   20.438196][  T389]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   20.438330][  T389]  ? copy_msghdr_from_user (net/socket.c:2635)
[   20.438466][  T389]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   20.438640][  T389]  ? move_addr_to_kernel (net/socket.c:258)
[   20.438786][  T389]  ___sys_sendmsg (net/socket.c:2752)
[   20.438920][  T389]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.439055][  T389]  ? copy_msghdr_from_user (net/socket.c:2603)
[   20.439198][  T389]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   20.439336][  T389]  __sys_sendmsg (net/socket.c:2784)
[   20.439472][  T389]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   20.439613][  T389]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.439754][  T389]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.439887][  T389]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.440020][  T389]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.440155][  T389]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.440288][  T389]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.440454][  T389] RIP: 0033:0x7fb4c1c6608e
[   20.440603][  T389] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.441083][  T389] RSP: 002b:00007ffe8bedeab0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.441282][  T389] RAX: ffffffffffffffda RBX: 00007ffe8bedf268 RCX: 00007fb4c1c6608e
[   20.441481][  T389] RDX: 0000000000000000 RSI: 00007ffe8bedeb60 RDI: 0000000000000005
[   20.441690][  T389] RBP: 00007ffe8bedeac0 R08: 0000000000000000 R09: 0000000000000000
[   20.441888][  T389] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacb
[   20.442085][  T389] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe8bedf220
| [   20.497887][  T391] ------------[ cut here ]------------
| [   20.498049][  T391] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/391
| [   20.498281][  T391] Modules linked in: ipvtap ipvlan
| [   20.499063][  T391] Tainted: [W]=WARN
[   20.499163][  T391] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.499330][  T391] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.499506][  T391] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.500042][  T391] RSP: 0018:ffa0000000c27a80 EFLAGS: 00010286
[   20.500207][  T391] RAX: 00000000ffffffa6 RBX: ff11000013065e00 RCX: 1ff4000000184f16
[   20.500405][  T391] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013065ebc
[   20.500605][  T391] RBP: ff11000013fa4000 R08: 1fe220000260cbd9 R09: ff11000012bd0b80
[   20.500838][  T391] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.501033][  T391] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013fa4000
[   20.501233][  T391] FS:  00007fc390378840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   20.501464][  T391] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.501633][  T391] CR2: 00007fc3905827d0 CR3: 0000000012008006 CR4: 0000000000771ef0
[   20.501838][  T391] PKRU: 55555554
[   20.501937][  T391] Call Trace:
[   20.502037][  T391]  <TASK>
[   20.502107][  T391]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.502242][  T391]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.502375][  T391]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.502475][  T391]  register_netdevice (net/core/dev.c:11488)
[   20.502613][  T391]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.502781][  T391]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.502915][  T391]  register_netdev (net/core/dev.c:11552)
[   20.503048][  T391]  loopback_net_init (drivers/net/loopback.c:218)
[   20.503180][  T391]  ops_init (net/core/net_namespace.c:137)
[   20.503286][  T391]  setup_net (net/core/net_namespace.c:446)
[   20.503387][  T391]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.503522][  T391]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.503661][  T391]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.503796][  T391]  copy_net_ns (net/core/net_namespace.c:579)
[   20.503930][  T391]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.504064][  T391]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.504195][  T391]  ksys_unshare (kernel/fork.c:3243)
[   20.504326][  T391]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.504458][  T391]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.504592][  T391]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.504733][  T391]  ? __ia32_sys_open (fs/open.c:1374)
[   20.504866][  T391]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.505008][  T391]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.505138][  T391]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.505269][  T391]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.505402][  T391]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.505539][  T391]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.505711][  T391] RIP: 0033:0x7fc39063abcb
[   20.505848][  T391] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.506325][  T391] RSP: 002b:00007ffce5366cb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.506531][  T391] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc39063abcb
[   20.506733][  T391] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.506931][  T391] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.507128][  T391] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffce5368ee0
[   20.507323][  T391] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffce536987e
| [   20.511747][  T391] ------------[ cut here ]------------
| [   20.511888][  T391] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/391
| [   20.512117][  T391] Modules linked in: ipvtap ipvlan
| [   20.512517][  T391] Tainted: [W]=WARN
[   20.512615][  T391] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.512781][  T391] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.512950][  T391] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.513406][  T391] RSP: 0018:ffa0000000c27918 EFLAGS: 00010286
[   20.513572][  T391] RAX: 00000000ffffffa6 RBX: ff1100000df9c200 RCX: 1ff4000000184ee9
[   20.513770][  T391] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df9c2bc
[   20.513965][  T391] RBP: ff1100000e8c4000 R08: 1fe2200001bf3859 R09: ff11000012bd0b80
[   20.514160][  T391] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.514354][  T391] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e8c4000
[   20.514557][  T391] FS:  00007fc390378840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   20.514788][  T391] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.514952][  T391] CR2: 00007fc3905827d0 CR3: 0000000012008006 CR4: 0000000000771ef0
[   20.515148][  T391] PKRU: 55555554
[   20.515246][  T391] Call Trace:
[   20.515343][  T391]  <TASK>
[   20.515410][  T391]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.515546][  T391]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.515685][  T391]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.515788][  T391]  register_netdevice (net/core/dev.c:11488)
[   20.515923][  T391]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.516086][  T391]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.516220][  T391]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   20.516353][  T391]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   20.516491][  T391]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   20.516628][  T391]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   20.516785][  T391]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   20.516920][  T391]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   20.517057][  T391]  ops_init (net/core/net_namespace.c:137)
[   20.517158][  T391]  setup_net (net/core/net_namespace.c:446)
[   20.517257][  T391]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.517385][  T391]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.517521][  T391]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.517659][  T391]  copy_net_ns (net/core/net_namespace.c:579)
[   20.517790][  T391]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.517922][  T391]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.518052][  T391]  ksys_unshare (kernel/fork.c:3243)
[   20.518183][  T391]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.518311][  T391]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.518440][  T391]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.518577][  T391]  ? __ia32_sys_open (fs/open.c:1374)
[   20.519216][  T391]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.519347][  T391]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.519477][  T391]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.519613][  T391]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.519802][  T391]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.519937][  T391]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.520097][  T391] RIP: 0033:0x7fc39063abcb
[   20.520231][  T391] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.520772][  T391] RSP: 002b:00007ffce5366cb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.521023][  T391] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc39063abcb
[   20.521217][  T391] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.521411][  T391] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.521611][  T391] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffce5368ee0
[   20.521866][  T391] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffce536987e
| [   20.532503][  T391] ------------[ cut here ]------------
| [   20.532664][  T391] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/391
| [   20.532895][  T391] Modules linked in: ipvtap ipvlan
| [   20.533304][  T391] Tainted: [W]=WARN
[   20.533403][  T391] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.533572][  T391] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.533751][  T391] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.534221][  T391] RSP: 0018:ffa0000000c278f8 EFLAGS: 00010286
[   20.534388][  T391] RAX: 00000000ffffffa6 RBX: ff11000005704e40 RCX: 1ff4000000184ee5
[   20.534596][  T391] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005704efc
[   20.534798][  T391] RBP: ff1100000a354000 R08: 1fe2200000ae09e1 R09: ff11000012bd0b80
[   20.534996][  T391] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.535193][  T391] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a354000
[   20.535390][  T391] FS:  00007fc390378840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   20.535626][  T391] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.535798][  T391] CR2: 00007fb4c1af9574 CR3: 0000000012008001 CR4: 0000000000771ef0
[   20.535996][  T391] PKRU: 55555554
[   20.536104][  T391] Call Trace:
[   20.536202][  T391]  <TASK>
[   20.536272][  T391]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.536406][  T391]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.536545][  T391]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.536647][  T391]  register_netdevice (net/core/dev.c:11488)
[   20.536789][  T391]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.536955][  T391]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.537092][  T391]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   20.537227][  T391]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   20.537360][  T391]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   20.537497][  T391]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   20.537631][  T391]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   20.537770][  T391]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   20.537906][  T391]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   20.538039][  T391]  vti_init_net (net/ipv4/ip_vti.c:517)
[   20.538175][  T391]  ops_init (net/core/net_namespace.c:137)
[   20.538277][  T391]  setup_net (net/core/net_namespace.c:446)
[   20.538379][  T391]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.538515][  T391]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.538647][  T391]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.538787][  T391]  copy_net_ns (net/core/net_namespace.c:579)
[   20.538920][  T391]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.539054][  T391]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.539185][  T391]  ksys_unshare (kernel/fork.c:3243)
[   20.539318][  T391]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.539448][  T391]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.539584][  T391]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.539722][  T391]  ? __ia32_sys_open (fs/open.c:1374)
[   20.539856][  T391]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.539987][  T391]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.540119][  T391]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.540250][  T391]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.540382][  T391]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.540521][  T391]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.540690][  T391] RIP: 0033:0x7fc39063abcb
[   20.540828][  T391] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.541295][  T391] RSP: 002b:00007ffce5366cb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.541501][  T391] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc39063abcb
[   20.541702][  T391] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.541899][  T391] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.542098][  T391] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffce5368ee0
[   20.542293][  T391] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffce536987e
| [   20.546408][  T391] ------------[ cut here ]------------
| [   20.546551][  T391] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/391
| [   20.546834][  T391] Modules linked in: ipvtap ipvlan
| [   20.547231][  T391] Tainted: [W]=WARN
[   20.547328][  T391] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.547494][  T391] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.547691][  T391] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.548157][  T391] RSP: 0018:ffa0000000c27a78 EFLAGS: 00010286
[   20.548321][  T391] RAX: 00000000ffffffa6 RBX: ff11000009a7cc80 RCX: 1ff4000000184f15
[   20.548521][  T391] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a7cd3c
[   20.548719][  T391] RBP: ff11000013dc1000 R08: 1fe220000134f9a9 R09: ff11000012bd0b80
[   20.548916][  T391] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.549110][  T391] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013dc1000
[   20.549304][  T391] FS:  00007fc390378840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   20.549534][  T391] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.549703][  T391] CR2: 00007fb4c1af9574 CR3: 0000000012008001 CR4: 0000000000771ef0
[   20.549897][  T391] PKRU: 55555554
[   20.549997][  T391] Call Trace:
[   20.550094][  T391]  <TASK>
[   20.550161][  T391]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.550290][  T391]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.550419][  T391]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.550526][  T391]  register_netdevice (net/core/dev.c:11488)
[   20.550663][  T391]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.550824][  T391]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.550956][  T391]  register_netdev (net/core/dev.c:11552)
[   20.551087][  T391]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   20.551219][  T391]  ops_init (net/core/net_namespace.c:137)
[   20.551318][  T391]  setup_net (net/core/net_namespace.c:446)
[   20.551416][  T391]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.551551][  T391]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.551686][  T391]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.551819][  T391]  copy_net_ns (net/core/net_namespace.c:579)
[   20.551951][  T391]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.552085][  T391]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.552215][  T391]  ksys_unshare (kernel/fork.c:3243)
[   20.552348][  T391]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.552477][  T391]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.552610][  T391]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.552746][  T391]  ? __ia32_sys_open (fs/open.c:1374)
[   20.552877][  T391]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.553009][  T391]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.553138][  T391]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.553268][  T391]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.553399][  T391]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.553532][  T391]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.553698][  T391] RIP: 0033:0x7fc39063abcb
[   20.553834][  T391] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.554301][  T391] RSP: 002b:00007ffce5366cb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.554499][  T391] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc39063abcb
[   20.554698][  T391] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.554892][  T391] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.555084][  T391] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffce5368ee0
[   20.555277][  T391] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffce536987e
| [   20.560330][  T391] ------------[ cut here ]------------
| [   20.560492][  T391] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/391
| [   20.560733][  T391] Modules linked in: ipvtap ipvlan
| [   20.561146][  T391] Tainted: [W]=WARN
[   20.561247][  T391] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.561418][  T391] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.561595][  T391] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.562057][  T391] RSP: 0018:ffa0000000c27a68 EFLAGS: 00010286
[   20.562221][  T391] RAX: 00000000ffffffa6 RBX: ff11000009a7d700 RCX: 1ff4000000184f13
[   20.562414][  T391] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a7d7bc
[   20.562616][  T391] RBP: ff11000013f94000 R08: 1fe220000134faf9 R09: ff11000012bd0b80
[   20.562817][  T391] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.563015][  T391] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013f94000
[   20.563213][  T391] FS:  00007fc390378840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   20.563441][  T391] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.563614][  T391] CR2: 00007fb4c1af9574 CR3: 0000000012008001 CR4: 0000000000771ef0
[   20.563823][  T391] PKRU: 55555554
[   20.563923][  T391] Call Trace:
[   20.564023][  T391]  <TASK>
[   20.564090][  T391]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.564220][  T391]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.564350][  T391]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.564450][  T391]  register_netdevice (net/core/dev.c:11488)
[   20.564584][  T391]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.564760][  T391]  register_netdev (net/core/dev.c:11552)
[   20.564893][  T391]  sit_init_net (net/ipv6/sit.c:1860)
[   20.565032][  T391]  ops_init (net/core/net_namespace.c:137)
[   20.565138][  T391]  setup_net (net/core/net_namespace.c:446)
[   20.565240][  T391]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.565371][  T391]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.565509][  T391]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.565646][  T391]  copy_net_ns (net/core/net_namespace.c:579)
[   20.565788][  T391]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.565920][  T391]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.566051][  T391]  ksys_unshare (kernel/fork.c:3243)
[   20.566185][  T391]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.566317][  T391]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.566447][  T391]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.566591][  T391]  ? __ia32_sys_open (fs/open.c:1374)
[   20.566787][  T391]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.566974][  T391]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.567109][  T391]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.567240][  T391]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.567375][  T391]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.567515][  T391]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.567736][  T391] RIP: 0033:0x7fc39063abcb
[   20.567876][  T391] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.568353][  T391] RSP: 002b:00007ffce5366cb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.568559][  T391] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc39063abcb
[   20.568815][  T391] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.569019][  T391] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.569216][  T391] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffce5368ee0
[   20.569431][  T391] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffce536987e
| [   20.581136][  T391] ------------[ cut here ]------------
| [   20.581288][  T391] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/391
| [   20.581519][  T391] Modules linked in: ipvtap ipvlan
| [   20.581924][  T391] Tainted: [W]=WARN
[   20.582027][  T391] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.582190][  T391] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.582359][  T391] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.582836][  T391] RSP: 0018:ffa0000000c27a78 EFLAGS: 00010286
[   20.583004][  T391] RAX: 00000000ffffffa6 RBX: ff110000094c3000 RCX: 1ff4000000184f15
[   20.583203][  T391] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000094c30bc
[   20.583400][  T391] RBP: ff1100001400c000 R08: 1fe2200001298619 R09: ff11000012bd0b80
[   20.583603][  T391] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.583802][  T391] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001400c000
[   20.583998][  T391] FS:  00007fc390378840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   20.584230][  T391] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.584396][  T391] CR2: 00007fb4c1af9574 CR3: 0000000012008001 CR4: 0000000000771ef0
[   20.584601][  T391] PKRU: 55555554
[   20.584707][  T391] Call Trace:
[   20.584809][  T391]  <TASK>
[   20.584879][  T391]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.585010][  T391]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.585140][  T391]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.585238][  T391]  register_netdevice (net/core/dev.c:11488)
[   20.585374][  T391]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.585548][  T391]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.585692][  T391]  register_netdev (net/core/dev.c:11552)
[   20.585824][  T391]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   20.585958][  T391]  ops_init (net/core/net_namespace.c:137)
[   20.586059][  T391]  setup_net (net/core/net_namespace.c:446)
[   20.586162][  T391]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.586295][  T391]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.586430][  T391]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.586574][  T391]  copy_net_ns (net/core/net_namespace.c:579)
[   20.586735][  T391]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.586874][  T391]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.587011][  T391]  ksys_unshare (kernel/fork.c:3243)
[   20.587148][  T391]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.587281][  T391]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.587416][  T391]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.587554][  T391]  ? __ia32_sys_open (fs/open.c:1374)
[   20.587696][  T391]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.587829][  T391]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.587963][  T391]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.588095][  T391]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.588228][  T391]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.588362][  T391]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.588529][  T391] RIP: 0033:0x7fc39063abcb
[   20.588675][  T391] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.589156][  T391] RSP: 002b:00007ffce5366cb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.589352][  T391] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc39063abcb
[   20.589552][  T391] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.589757][  T391] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.589958][  T391] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffce5368ee0
[   20.590156][  T391] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffce536987e
| [   20.616038][  T392] ------------[ cut here ]------------
| [   20.616209][  T392] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/392
| [   20.616441][  T392] Modules linked in: ipvtap ipvlan
| [   20.616863][  T392] Tainted: [W]=WARN
[   20.616964][  T392] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.617135][  T392] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.617309][  T392] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.617793][  T392] RSP: 0018:ffa0000000e07020 EFLAGS: 00010286
[   20.617961][  T392] RAX: 00000000ffffffa6 RBX: ff1100000df9d1c0 RCX: 1ff40000001c0dca
[   20.618160][  T392] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000df9d27c
[   20.618362][  T392] RBP: ff11000013fa4000 R08: 1fe2200001bf3a51 R09: ff11000012bd2e58
[   20.618565][  T392] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   20.618768][  T392] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   20.618969][  T392] FS:  00007fb968d00840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   20.619205][  T392] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.619373][  T392] CR2: 00007fb968fd01a0 CR3: 0000000012005002 CR4: 0000000000771ef0
[   20.619578][  T392] PKRU: 55555554
[   20.619684][  T392] Call Trace:
[   20.619784][  T392]  <TASK>
[   20.619854][  T392]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.619993][  T392]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.620098][  T392]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   20.620232][  T392]  __dev_notify_flags (net/core/dev.c:9787)
[   20.620368][  T392]  ? netif_change_name (net/core/dev.c:1495)
[   20.620505][  T392]  ? __dev_change_flags (net/core/dev.c:9752)
[   20.620639][  T392]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   20.620779][  T392]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.620914][  T392]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   20.621055][  T392]  netif_change_flags (net/core/dev.c:9820)
[   20.621189][  T392]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   20.621323][  T392]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   20.621461][  T392]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   20.621597][  T392]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   20.621767][  T392]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.621901][  T392]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.622034][  T392]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.622164][  T392]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.622297][  T392]  ? __kernel_text_address (kernel/extable.c:79)
[   20.622433][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.622569][  T392]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.622765][  T392]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   20.622902][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.623035][  T392]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.623169][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.623304][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.623438][  T392]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   20.623581][  T392]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   20.623776][  T392]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   20.623912][  T392]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   20.624049][  T392]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   20.624187][  T392]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   20.624326][  T392]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.624462][  T392]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.624599][  T392]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.624786][  T392]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.624977][  T392]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   20.625111][  T392]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.625247][  T392]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.625380][  T392]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.625520][  T392]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.625709][  T392]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.625845][  T392]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.625978][  T392]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.626113][  T392]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.626247][  T392]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.626382][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.626524][  T392]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.626724][  T392]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.626860][  T392]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.626995][  T392]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.627129][  T392]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.627265][  T392]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.627400][  T392]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.627540][  T392]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.627753][  T392]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.627889][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.628024][  T392]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   20.628158][  T392]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   20.628293][  T392]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   20.628430][  T392]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   20.628575][  T392]  ? copy_msghdr_from_user (net/socket.c:2635)
[   20.628786][  T392]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   20.628951][  T392]  ? move_addr_to_kernel (net/socket.c:258)
[   20.629087][  T392]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.629221][  T392]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.629358][  T392]  ___sys_sendmsg (net/socket.c:2752)
[   20.629497][  T392]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   20.629743][  T392]  ? copy_msghdr_from_user (net/socket.c:2603)
[   20.629890][  T392]  __sys_sendmsg (net/socket.c:2784)
[   20.630024][  T392]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   20.630156][  T392]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   20.630324][  T392]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   20.630458][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.630598][  T392]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.630836][  T392]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.630972][  T392]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.631105][  T392]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.631270][  T392] RIP: 0033:0x7fb968f3a08e
[   20.631411][  T392] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.631957][  T392] RSP: 002b:00007ffe742a8960 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.632159][  T392] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb968f3a08e
[   20.632358][  T392] RDX: 0000000000000000 RSI: 00007ffe742a8a10 RDI: 0000000000000005
[   20.632561][  T392] RBP: 00007ffe742a8970 R08: 0000000000000000 R09: 0000000000000000
[   20.632823][  T392] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacb
[   20.633022][  T392] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe742a90e0
| [   20.763575][  T395] ------------[ cut here ]------------
| [   20.763802][  T395] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/395
| [   20.764097][  T395] Modules linked in: ipvtap ipvlan
| [   20.764638][  T395] Tainted: [W]=WARN
[   20.764882][  T395] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.765104][  T395] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.765339][  T395] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.765912][  T395] RSP: 0018:ffa0000000e270b0 EFLAGS: 00010286
[   20.766140][  T395] RAX: 00000000ffffffa6 RBX: ff110000094c2740 RCX: 1ff40000001c4ddc
[   20.766401][  T395] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000094c27fc
[   20.766680][  T395] RBP: ff11000007edc000 R08: 1fe2200001298501 R09: ff1100000f9e0b80
[   20.766940][  T395] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   20.767200][  T395] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   20.767464][  T395] FS:  00007fe258180840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   20.767779][  T395] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.768005][  T395] CR2: 0000000000445730 CR3: 0000000014054006 CR4: 0000000000771ef0
[   20.768264][  T395] PKRU: 55555554
[   20.768417][  T395] Call Trace:
[   20.768578][  T395]  <TASK>
[   20.768715][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.768908][  T395]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   20.769101][  T395]  notifier_call_chain (kernel/notifier.c:85)
[   20.769299][  T395]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   20.769499][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.769704][  T395]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   20.769896][  T395]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   20.770054][  T395]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   20.770283][  T395]  ? ida_destroy (lib/idr.c:623)
[   20.770476][  T395]  netdev_upper_dev_link (net/core/dev.c:8972)
[   20.770693][  T395]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   20.770888][  T395] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   20.771083][  T395]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   20.771275][  T395]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   20.771470][  T395] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   20.771710][  T395]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   20.771904][  T395]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   20.772111][  T395]  ? __dev_get_by_name (net/core/dev.c:883)
[   20.772304][  T395]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   20.772507][  T395]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   20.772712][  T395]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.772904][  T395]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.773093][  T395]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.773285][  T395]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.773475][  T395]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   20.773693][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.773895][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.774090][  T395]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.774282][  T395]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.774474][  T395]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.774686][  T395]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.774876][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.775070][  T395]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.775259][  T395]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.775451][  T395]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.775645][  T395]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.775854][  T395]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.776050][  T395]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.776242][  T395]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.776435][  T395]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.776639][  T395]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.776844][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.777038][  T395]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   20.777230][  T395]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   20.777422][  T395]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   20.777625][  T395]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   20.777828][  T395]  ? copy_msghdr_from_user (net/socket.c:2635)
[   20.778019][  T395]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   20.778241][  T395]  ? move_addr_to_kernel (net/socket.c:258)
[   20.778455][  T395]  ___sys_sendmsg (net/socket.c:2752)
[   20.778669][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.778863][  T395]  ? copy_msghdr_from_user (net/socket.c:2603)
[   20.779066][  T395]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   20.779260][  T395]  __sys_sendmsg (net/socket.c:2784)
[   20.779451][  T395]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   20.779665][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.779857][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.780049][  T395]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.780241][  T395]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.780436][  T395]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.780637][  T395]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.780878][  T395] RIP: 0033:0x7fe2583ba08e
[   20.781076][  T395] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.781633][  T395] RSP: 002b:00007fff3bed5810 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.781909][  T395] RAX: ffffffffffffffda RBX: 00007fff3bed5fc8 RCX: 00007fe2583ba08e
[   20.782169][  T395] RDX: 0000000000000000 RSI: 00007fff3bed58c0 RDI: 0000000000000005
[   20.782428][  T395] RBP: 00007fff3bed5820 R08: 0000000000000000 R09: 0000000000000000
[   20.782705][  T395] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacc
[   20.782968][  T395] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff3bed5f80
| [   20.785097][  T395] ------------[ cut here ]------------
| [   20.785274][  T395] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/395
| [   20.785565][  T395] Modules linked in: ipvtap ipvlan
| [   20.786090][  T395] Tainted: [W]=WARN
[   20.786239][  T395] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.786456][  T395] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.786704][  T395] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.787234][  T395] RSP: 0018:ffa0000000e271b0 EFLAGS: 00010286
[   20.787454][  T395] RAX: 00000000ffffffa6 RBX: ff110000094c2580 RCX: 1ff40000001c4dfc
[   20.787726][  T395] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000094c263c
[   20.787980][  T395] RBP: ff1100001412a000 R08: 1fe22000012984c9 R09: ff1100000f9e0b80
[   20.788230][  T395] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.788479][  T395] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   20.788754][  T395] FS:  00007fe258180840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   20.789042][  T395] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.789259][  T395] CR2: 0000000000445730 CR3: 0000000014054006 CR4: 0000000000771ef0
[   20.789518][  T395] PKRU: 55555554
[   20.789680][  T395] Call Trace:
[   20.789832][  T395]  <TASK>
[   20.789952][  T395]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.790138][  T395]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.790294][  T395]  ? ida_destroy (lib/idr.c:623)
[   20.790480][  T395]  __dev_notify_flags (net/core/dev.c:9787)
[   20.790685][  T395]  ? netif_change_name (net/core/dev.c:1495)
[   20.790867][  T395]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.791054][  T395]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   20.791275][  T395]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   20.791498][  T395]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   20.791700][  T395]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   20.791887][  T395]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   20.792071][  T395]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   20.792258][  T395]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   20.792444][  T395]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   20.792637][  T395]  ? __dev_get_by_name (net/core/dev.c:883)
[   20.792834][  T395]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   20.793029][  T395]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   20.793219][  T395]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.793405][  T395]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.793599][  T395]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.793797][  T395]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.793980][  T395]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   20.794164][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.794353][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.794551][  T395]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.794752][  T395]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.794939][  T395]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.795122][  T395]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.795305][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.795499][  T395]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.795694][  T395]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.795883][  T395]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.796067][  T395]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.796252][  T395]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.796440][  T395]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.796632][  T395]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.796831][  T395]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.797017][  T395]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.797200][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.797389][  T395]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   20.797584][  T395]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   20.797783][  T395]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   20.797969][  T395]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   20.798155][  T395]  ? copy_msghdr_from_user (net/socket.c:2635)
[   20.798339][  T395]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   20.798562][  T395]  ? move_addr_to_kernel (net/socket.c:258)
[   20.798770][  T395]  ___sys_sendmsg (net/socket.c:2752)
[   20.798952][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.799137][  T395]  ? copy_msghdr_from_user (net/socket.c:2603)
[   20.799330][  T395]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   20.799524][  T395]  __sys_sendmsg (net/socket.c:2784)
[   20.799722][  T395]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   20.799910][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.800097][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.800282][  T395]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.800466][  T395]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.800670][  T395]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.800855][  T395]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.801071][  T395] RIP: 0033:0x7fe2583ba08e
[   20.801261][  T395] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.801812][  T395] RSP: 002b:00007fff3bed5810 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.802064][  T395] RAX: ffffffffffffffda RBX: 00007fff3bed5fc8 RCX: 00007fe2583ba08e
[   20.802313][  T395] RDX: 0000000000000000 RSI: 00007fff3bed58c0 RDI: 0000000000000005
[   20.802574][  T395] RBP: 00007fff3bed5820 R08: 0000000000000000 R09: 0000000000000000
[   20.802837][  T395] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacc
[   20.803088][  T395] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff3bed5f80
| [   20.854772][  T397] ------------[ cut here ]------------
| [   20.854937][  T397] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/397
| [   20.855174][  T397] Modules linked in: ipvtap ipvlan
| [   20.855594][  T397] Tainted: [W]=WARN
[   20.855700][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.855866][  T397] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.856041][  T397] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.856518][  T397] RSP: 0018:ffa0000000e37a80 EFLAGS: 00010286
[   20.856694][  T397] RAX: 00000000ffffffa6 RBX: ff1100000d7acc80 RCX: 1ff40000001c6f16
[   20.856893][  T397] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7acd3c
[   20.857092][  T397] RBP: ff1100000f801000 R08: 1fe2200001af59a9 R09: ff1100000f880b80
[   20.857292][  T397] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.857497][  T397] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f801000
[   20.857706][  T397] FS:  00007fc04d1e3840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   20.857944][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.858113][  T397] CR2: 00007fc04d3ea430 CR3: 00000000121b0004 CR4: 0000000000771ef0
[   20.858315][  T397] PKRU: 55555554
[   20.858415][  T397] Call Trace:
[   20.858522][  T397]  <TASK>
[   20.858591][  T397]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.858734][  T397]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.858869][  T397]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.858972][  T397]  register_netdevice (net/core/dev.c:11488)
[   20.859109][  T397]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.859274][  T397]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.859410][  T397]  register_netdev (net/core/dev.c:11552)
[   20.859550][  T397]  loopback_net_init (drivers/net/loopback.c:218)
[   20.859696][  T397]  ops_init (net/core/net_namespace.c:137)
[   20.859800][  T397]  setup_net (net/core/net_namespace.c:446)
[   20.859903][  T397]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.860036][  T397]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.860170][  T397]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.860307][  T397]  copy_net_ns (net/core/net_namespace.c:579)
[   20.860442][  T397]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.860584][  T397]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.860725][  T397]  ksys_unshare (kernel/fork.c:3243)
[   20.860859][  T397]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.860993][  T397]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.861127][  T397]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.861262][  T397]  ? __ia32_sys_open (fs/open.c:1374)
[   20.861398][  T397]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.861533][  T397]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.861672][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.861804][  T397]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.861937][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.862072][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.862240][  T397] RIP: 0033:0x7fc04d4a5bcb
[   20.862383][  T397] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.862871][  T397] RSP: 002b:00007ffc905b1388 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.863074][  T397] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc04d4a5bcb
[   20.863273][  T397] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.863473][  T397] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.863684][  T397] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc905b35b0
[   20.863883][  T397] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc905b487e
| [   20.874757][  T397] ------------[ cut here ]------------
| [   20.874910][  T397] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/397
| [   20.875141][  T397] Modules linked in: ipvtap ipvlan
| [   20.875553][  T397] Tainted: [W]=WARN
[   20.876205][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.876376][  T397] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.876558][  T397] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.877086][  T397] RSP: 0018:ffa0000000e37918 EFLAGS: 00010286
[   20.877254][  T397] RAX: 00000000ffffffa6 RBX: ff11000006218740 RCX: 1ff40000001c6ee9
[   20.877451][  T397] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000062187fc
[   20.877711][  T397] RBP: ff11000015154000 R08: 1fe2200000c43101 R09: ff1100000f880b80
[   20.877912][  T397] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.878111][  T397] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000015154000
[   20.878367][  T397] FS:  00007fc04d1e3840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   20.878608][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.878829][  T397] CR2: 00007fc04d3ea430 CR3: 00000000121b0004 CR4: 0000000000771ef0
[   20.879031][  T397] PKRU: 55555554
[   20.879130][  T397] Call Trace:
[   20.879228][  T397]  <TASK>
[   20.879296][  T397]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.879429][  T397]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.879565][  T397]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.879718][  T397]  register_netdevice (net/core/dev.c:11488)
[   20.879851][  T397]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.880016][  T397]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.880148][  T397]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   20.880282][  T397]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   20.880414][  T397]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   20.880555][  T397]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   20.880748][  T397]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   20.880884][  T397]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   20.881021][  T397]  ops_init (net/core/net_namespace.c:137)
[   20.881124][  T397]  setup_net (net/core/net_namespace.c:446)
[   20.881226][  T397]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.881358][  T397]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.881498][  T397]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.881636][  T397]  copy_net_ns (net/core/net_namespace.c:579)
[   20.881826][  T397]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.881961][  T397]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.882096][  T397]  ksys_unshare (kernel/fork.c:3243)
[   20.882228][  T397]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.882360][  T397]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.882498][  T397]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.882635][  T397]  ? __ia32_sys_open (fs/open.c:1374)
[   20.882826][  T397]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.882959][  T397]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.883091][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.883223][  T397]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.883354][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.883490][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.883711][  T397] RIP: 0033:0x7fc04d4a5bcb
[   20.883850][  T397] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.884319][  T397] RSP: 002b:00007ffc905b1388 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.884526][  T397] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc04d4a5bcb
[   20.884783][  T397] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.884981][  T397] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.885178][  T397] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc905b35b0
[   20.885376][  T397] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc905b487e
| [   20.889885][  T397] ------------[ cut here ]------------
| [   20.890042][  T397] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/397
| [   20.890283][  T397] Modules linked in: ipvtap ipvlan
| [   20.890718][  T397] Tainted: [W]=WARN
[   20.890819][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.890988][  T397] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.891163][  T397] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.891646][  T397] RSP: 0018:ffa0000000e378f8 EFLAGS: 00010286
[   20.891829][  T397] RAX: 00000000ffffffa6 RBX: ff1100000a132c80 RCX: 1ff40000001c6ee5
[   20.892029][  T397] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a132d3c
[   20.892230][  T397] RBP: ff11000012b44000 R08: 1fe22000014265a9 R09: ff1100000f880b80
[   20.892432][  T397] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   20.892639][  T397] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012b44000
[   20.892847][  T397] FS:  00007fc04d1e3840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   20.893083][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.893252][  T397] CR2: 00007fb968dcd574 CR3: 00000000121b0001 CR4: 0000000000771ef0
[   20.893453][  T397] PKRU: 55555554
[   20.893561][  T397] Call Trace:
[   20.893666][  T397]  <TASK>
[   20.893735][  T397]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.893869][  T397]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.894004][  T397]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.894107][  T397]  register_netdevice (net/core/dev.c:11488)
[   20.894243][  T397]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.894412][  T397]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.894554][  T397]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   20.894696][  T397]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   20.894832][  T397]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   20.894969][  T397]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   20.895103][  T397]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   20.895241][  T397]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   20.895377][  T397]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   20.895521][  T397]  vti_init_net (net/ipv4/ip_vti.c:517)
[   20.895663][  T397]  ops_init (net/core/net_namespace.c:137)
[   20.895767][  T397]  setup_net (net/core/net_namespace.c:446)
[   20.895870][  T397]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.896006][  T397]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.896141][  T397]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.896280][  T397]  copy_net_ns (net/core/net_namespace.c:579)
[   20.896416][  T397]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.896560][  T397]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.896699][  T397]  ksys_unshare (kernel/fork.c:3243)
[   20.896836][  T397]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.896970][  T397]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.897105][  T397]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.897243][  T397]  ? __ia32_sys_open (fs/open.c:1374)
[   20.897379][  T397]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.897519][  T397]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.897661][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.897796][  T397]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.897932][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.898065][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.898232][  T397] RIP: 0033:0x7fc04d4a5bcb
[   20.898376][  T397] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.898866][  T397] RSP: 002b:00007ffc905b1388 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.899069][  T397] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc04d4a5bcb
[   20.899270][  T397] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.899471][  T397] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.899686][  T397] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc905b35b0
[   20.899888][  T397] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc905b487e
| [   20.904108][  T397] ------------[ cut here ]------------
| [   20.904255][  T397] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/397
| [   20.904490][  T397] Modules linked in: ipvtap ipvlan
| [   20.904902][  T397] Tainted: [W]=WARN
[   20.905004][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.905168][  T397] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.905342][  T397] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.905828][  T397] RSP: 0018:ffa0000000e37a78 EFLAGS: 00010286
[   20.905994][  T397] RAX: 00000000ffffffa6 RBX: ff11000014138900 RCX: 1ff40000001c6f15
[   20.906192][  T397] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000141389bc
[   20.906391][  T397] RBP: ff1100000f091000 R08: 1fe2200002827139 R09: ff1100000f880b80
[   20.906595][  T397] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   20.906797][  T397] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f091000
[   20.906999][  T397] FS:  00007fc04d1e3840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   20.907232][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.907398][  T397] CR2: 00007fb968dcd574 CR3: 00000000121b0001 CR4: 0000000000771ef0
[   20.907602][  T397] PKRU: 55555554
[   20.907706][  T397] Call Trace:
[   20.907807][  T397]  <TASK>
[   20.907875][  T397]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.908009][  T397]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.908144][  T397]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.908245][  T397]  register_netdevice (net/core/dev.c:11488)
[   20.908380][  T397]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.908554][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.908696][  T397]  register_netdev (net/core/dev.c:11552)
[   20.908830][  T397]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   20.908967][  T397]  ops_init (net/core/net_namespace.c:137)
[   20.909072][  T397]  setup_net (net/core/net_namespace.c:446)
[   20.909174][  T397]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.909309][  T397]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.909445][  T397]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.909588][  T397]  copy_net_ns (net/core/net_namespace.c:579)
[   20.909730][  T397]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.909868][  T397]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.910003][  T397]  ksys_unshare (kernel/fork.c:3243)
[   20.910138][  T397]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.910273][  T397]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.910409][  T397]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.910551][  T397]  ? __ia32_sys_open (fs/open.c:1374)
[   20.910692][  T397]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.910826][  T397]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.910958][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.911091][  T397]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.911225][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.911359][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.911531][  T397] RIP: 0033:0x7fc04d4a5bcb
[   20.911676][  T397] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.912151][  T397] RSP: 002b:00007ffc905b1388 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.912352][  T397] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc04d4a5bcb
[   20.912555][  T397] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.912761][  T397] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.912957][  T397] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc905b35b0
[   20.913155][  T397] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc905b487e
| [   20.918563][  T397] ------------[ cut here ]------------
| [   20.918718][  T397] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/397
| [   20.918956][  T397] Modules linked in: ipvtap ipvlan
| [   20.919366][  T397] Tainted: [W]=WARN
[   20.919465][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.919635][  T397] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.919875][  T397] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.920351][  T397] RSP: 0018:ffa0000000e37a68 EFLAGS: 00010286
[   20.920525][  T397] RAX: 00000000ffffffa6 RBX: ff11000014139000 RCX: 1ff40000001c6f13
[   20.920780][  T397] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000141390bc
[   20.920984][  T397] RBP: ff11000015179000 R08: 1fe2200002827219 R09: ff1100000f880b80
[   20.921181][  T397] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   20.921379][  T397] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000015179000
[   20.921586][  T397] FS:  00007fc04d1e3840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   20.921882][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.922052][  T397] CR2: 00007fb968dcd574 CR3: 00000000121b0001 CR4: 0000000000771ef0
[   20.922251][  T397] PKRU: 55555554
[   20.922351][  T397] Call Trace:
[   20.922451][  T397]  <TASK>
[   20.922526][  T397]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.922716][  T397]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.922867][  T397]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.922968][  T397]  register_netdevice (net/core/dev.c:11488)
[   20.923105][  T397]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.923273][  T397]  register_netdev (net/core/dev.c:11552)
[   20.923406][  T397]  sit_init_net (net/ipv6/sit.c:1860)
[   20.923546][  T397]  ops_init (net/core/net_namespace.c:137)
[   20.923705][  T397]  setup_net (net/core/net_namespace.c:446)
[   20.923813][  T397]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.923946][  T397]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.924080][  T397]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.924217][  T397]  copy_net_ns (net/core/net_namespace.c:579)
[   20.924353][  T397]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.924494][  T397]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.924628][  T397]  ksys_unshare (kernel/fork.c:3243)
[   20.924818][  T397]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.924953][  T397]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.925086][  T397]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.925220][  T397]  ? __ia32_sys_open (fs/open.c:1374)
[   20.925355][  T397]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.925492][  T397]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.925626][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.925816][  T397]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.925949][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.926082][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.926245][  T397] RIP: 0033:0x7fc04d4a5bcb
[   20.926383][  T397] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.926921][  T397] RSP: 002b:00007ffc905b1388 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.927121][  T397] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc04d4a5bcb
[   20.927319][  T397] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.927524][  T397] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.927782][  T397] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc905b35b0
[   20.927981][  T397] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc905b487e
| [   20.932983][  T397] ------------[ cut here ]------------
| [   20.933171][  T397] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/397
| [   20.933449][  T397] Modules linked in: ipvtap ipvlan
| [   20.933969][  T397] Tainted: [W]=WARN
[   20.934121][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.934334][  T397] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.934564][  T397] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.935096][  T397] RSP: 0018:ffa0000000e37a78 EFLAGS: 00010286
[   20.935317][  T397] RAX: 00000000ffffffa6 RBX: ff11000013ee2200 RCX: 1ff40000001c6f15
[   20.935571][  T397] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013ee22bc
[   20.935829][  T397] RBP: ff1100001519c000 R08: 1fe22000027dc459 R09: ff1100000f880b80
[   20.936074][  T397] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.936323][  T397] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001519c000
[   20.936584][  T397] FS:  00007fc04d1e3840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   20.936893][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.937111][  T397] CR2: 00005559e9c93d5c CR3: 00000000121b0002 CR4: 0000000000771ef0
[   20.937373][  T397] PKRU: 55555554
[   20.937530][  T397] Call Trace:
[   20.937691][  T397]  <TASK>
[   20.937809][  T397]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.937992][  T397]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.938174][  T397]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.938325][  T397]  register_netdevice (net/core/dev.c:11488)
[   20.938515][  T397]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.938817][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.939059][  T397]  register_netdev (net/core/dev.c:11552)
[   20.939264][  T397]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   20.939454][  T397]  ops_init (net/core/net_namespace.c:137)
[   20.939606][  T397]  setup_net (net/core/net_namespace.c:446)
[   20.939770][  T397]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.939950][  T397]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.940133][  T397]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.940321][  T397]  copy_net_ns (net/core/net_namespace.c:579)
[   20.940512][  T397]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.940708][  T397]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.940892][  T397]  ksys_unshare (kernel/fork.c:3243)
[   20.941075][  T397]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.941258][  T397]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.941445][  T397]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.941635][  T397]  ? __ia32_sys_open (fs/open.c:1374)
[   20.941834][  T397]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.942016][  T397]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.942197][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.942380][  T397]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.942566][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.942764][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.942981][  T397] RIP: 0033:0x7fc04d4a5bcb
[   20.943170][  T397] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.943706][  T397] RSP: 002b:00007ffc905b1388 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.943955][  T397] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc04d4a5bcb
[   20.944205][  T397] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.944466][  T397] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.944733][  T397] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc905b35b0
[   20.944978][  T397] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc905b487e
| [   20.976595][  T398] ------------[ cut here ]------------
| [   20.976765][  T398] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/398
| [   20.976996][  T398] Modules linked in: ipvtap ipvlan
| [   20.977426][  T398] Tainted: [W]=WARN
[   20.977530][  T398] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.977702][  T398] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.977870][  T398] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.978327][  T398] RSP: 0018:ffa0000000e37020 EFLAGS: 00010286
[   20.978492][  T398] RAX: 00000000ffffffa6 RBX: ff11000006219380 RCX: 1ff40000001c6dca
[   20.978690][  T398] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000621943c
[   20.978880][  T398] RBP: ff1100000f801000 R08: 1fe2200000c43289 R09: ff1100000f882e58
[   20.979071][  T398] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   20.979261][  T398] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   20.979462][  T398] FS:  00007f29ff682840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   20.979696][  T398] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.979856][  T398] CR2: 00007f29ff9521a0 CR3: 00000000120ce006 CR4: 0000000000771ef0
[   20.980048][  T398] PKRU: 55555554
[   20.980143][  T398] Call Trace:
[   20.980238][  T398]  <TASK>
[   20.980307][  T398]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.980436][  T398]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.980540][  T398]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   20.980673][  T398]  __dev_notify_flags (net/core/dev.c:9787)
[   20.980802][  T398]  ? netif_change_name (net/core/dev.c:1495)
[   20.980929][  T398]  ? __dev_change_flags (net/core/dev.c:9752)
[   20.981058][  T398]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   20.981186][  T398]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.981314][  T398]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   20.981445][  T398]  netif_change_flags (net/core/dev.c:9820)
[   20.981580][  T398]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   20.981716][  T398]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   20.981847][  T398]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   20.981978][  T398]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   20.982143][  T398]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.982271][  T398]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.982400][  T398]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.982530][  T398]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.982665][  T398]  ? __kernel_text_address (kernel/extable.c:79)
[   20.982796][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.982926][  T398]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.983058][  T398]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   20.983188][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.983316][  T398]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.983447][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.983582][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.983718][  T398]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   20.983846][  T398]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   20.983978][  T398]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   20.984108][  T398]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   20.984239][  T398]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   20.984369][  T398]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   20.984507][  T398]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.984637][  T398]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.984771][  T398]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.984899][  T398]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.985028][  T398]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   20.985156][  T398]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.985286][  T398]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.985413][  T398]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.985545][  T398]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.985678][  T398]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.985809][  T398]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.985936][  T398]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.986065][  T398]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.986193][  T398]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.986321][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.986452][  T398]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.986584][  T398]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.986719][  T398]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.986848][  T398]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.986977][  T398]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.987111][  T398]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.987237][  T398]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.987368][  T398]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.987501][  T398]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.987631][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.987766][  T398]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   20.987895][  T398]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   20.988028][  T398]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   20.988158][  T398]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   20.988289][  T398]  ? copy_msghdr_from_user (net/socket.c:2635)
[   20.988418][  T398]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   20.988582][  T398]  ? move_addr_to_kernel (net/socket.c:258)
[   20.988718][  T398]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.988848][  T398]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.988982][  T398]  ___sys_sendmsg (net/socket.c:2752)
[   20.989111][  T398]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   20.989272][  T398]  ? copy_msghdr_from_user (net/socket.c:2603)
[   20.989416][  T398]  __sys_sendmsg (net/socket.c:2784)
[   20.989557][  T398]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   20.989695][  T398]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   20.989865][  T398]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   20.989999][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.990128][  T398]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.990255][  T398]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.990387][  T398]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.990526][  T398]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.990692][  T398] RIP: 0033:0x7f29ff8bc08e
[   20.990827][  T398] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.991289][  T398] RSP: 002b:00007fff19eeea30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.991492][  T398] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f29ff8bc08e
[   20.991692][  T398] RDX: 0000000000000000 RSI: 00007fff19eeeae0 RDI: 0000000000000005
[   20.991885][  T398] RBP: 00007fff19eeea40 R08: 0000000000000000 R09: 0000000000000000
[   20.992078][  T398] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacc
[   20.992272][  T398] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff19eef1b0
| [   21.110758][  T401] ------------[ cut here ]------------
| [   21.110930][  T401] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/401
| [   21.111170][  T401] Modules linked in: ipvtap ipvlan
| [   21.111599][  T401] Tainted: [W]=WARN
[   21.112428][  T401] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.112606][  T401] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.112790][  T401] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.113278][  T401] RSP: 0018:ffa0000000e670b0 EFLAGS: 00010286
[   21.113483][  T401] RAX: 00000000ffffffa6 RBX: ff11000006219e00 RCX: 1ff40000001ccddc
[   21.113696][  T401] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000006219ebc
[   21.113904][  T401] RBP: ff11000007edc000 R08: 1fe2200000c433d9 R09: ff1100000a270b80
[   21.114110][  T401] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   21.114315][  T401] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   21.114527][  T401] FS:  00007f24572fa840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   21.114772][  T401] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.114946][  T401] CR2: 0000000000445730 CR3: 0000000015228003 CR4: 0000000000771ef0
[   21.115160][  T401] PKRU: 55555554
[   21.115265][  T401] Call Trace:
[   21.115369][  T401]  <TASK>
[   21.115440][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.115584][  T401]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   21.115728][  T401]  notifier_call_chain (kernel/notifier.c:85)
[   21.115870][  T401]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   21.116008][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.116145][  T401]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   21.116283][  T401]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   21.116387][  T401]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   21.116567][  T401]  ? ida_destroy (lib/idr.c:623)
[   21.116713][  T401]  netdev_upper_dev_link (net/core/dev.c:8972)
[   21.116851][  T401]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   21.116989][  T401] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   21.117129][  T401]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   21.117268][  T401]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   21.117407][  T401] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   21.117550][  T401]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   21.117694][  T401]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   21.117836][  T401]  ? __dev_get_by_name (net/core/dev.c:883)
[   21.117975][  T401]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   21.118119][  T401]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   21.118261][  T401]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   21.118400][  T401]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.118545][  T401]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.118689][  T401]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.118827][  T401]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   21.118964][  T401]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.119106][  T401]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.119247][  T401]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.119384][  T401]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   21.119526][  T401]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.119666][  T401]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.119804][  T401]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.119943][  T401]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.120080][  T401]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.120218][  T401]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   21.120356][  T401]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.120497][  T401]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.120637][  T401]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.120778][  T401]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.120919][  T401]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.121059][  T401]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.121196][  T401]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.121333][  T401]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   21.121473][  T401]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   21.121614][  T401]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   21.121759][  T401]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   21.121896][  T401]  ? copy_msghdr_from_user (net/socket.c:2635)
[   21.122034][  T401]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   21.122205][  T401]  ? move_addr_to_kernel (net/socket.c:258)
[   21.122347][  T401]  ___sys_sendmsg (net/socket.c:2752)
[   21.122484][  T401]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.122626][  T401]  ? copy_msghdr_from_user (net/socket.c:2603)
[   21.122776][  T401]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   21.122915][  T401]  __sys_sendmsg (net/socket.c:2784)
[   21.123052][  T401]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   21.123193][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.123329][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.123466][  T401]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.123609][  T401]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.123750][  T401]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.123887][  T401]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.124058][  T401] RIP: 0033:0x7f245753408e
[   21.124202][  T401] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.124700][  T401] RSP: 002b:00007ffe2a905990 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.124908][  T401] RAX: ffffffffffffffda RBX: 00007ffe2a906148 RCX: 00007f245753408e
[   21.125117][  T401] RDX: 0000000000000000 RSI: 00007ffe2a905a40 RDI: 0000000000000005
[   21.125322][  T401] RBP: 00007ffe2a9059a0 R08: 0000000000000000 R09: 0000000000000000
[   21.125529][  T401] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacc
[   21.125739][  T401] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe2a906100
| [   21.127331][  T401] ------------[ cut here ]------------
| [   21.127458][  T401] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/401
| [   21.127694][  T401] Modules linked in: ipvtap ipvlan
| [   21.128092][  T401] Tainted: [W]=WARN
[   21.128190][  T401] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.128353][  T401] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.128529][  T401] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.129001][  T401] RSP: 0018:ffa0000000e671b0 EFLAGS: 00010286
[   21.129167][  T401] RAX: 00000000ffffffa6 RBX: ff110000062198c0 RCX: 1ff40000001ccdfc
[   21.129364][  T401] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000621997c
[   21.129566][  T401] RBP: ff11000013d4a000 R08: 1fe2200000c43331 R09: ff1100000a270b80
[   21.129763][  T401] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   21.129958][  T401] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   21.130157][  T401] FS:  00007f24572fa840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   21.130389][  T401] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.130557][  T401] CR2: 0000000000445730 CR3: 0000000015228003 CR4: 0000000000771ef0
[   21.130759][  T401] PKRU: 55555554
[   21.130857][  T401] Call Trace:
[   21.130955][  T401]  <TASK>
[   21.131022][  T401]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.131156][  T401]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.131258][  T401]  ? ida_destroy (lib/idr.c:623)
[   21.131391][  T401]  __dev_notify_flags (net/core/dev.c:9787)
[   21.131530][  T401]  ? netif_change_name (net/core/dev.c:1495)
[   21.131665][  T401]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   21.131796][  T401]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   21.131963][  T401]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   21.132126][  T401]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   21.132261][  T401]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   21.132395][  T401]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   21.132532][  T401]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   21.132668][  T401]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   21.132900][  T401]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   21.133034][  T401]  ? __dev_get_by_name (net/core/dev.c:883)
[   21.133164][  T401]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   21.133304][  T401]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   21.133532][  T401]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   21.133699][  T401]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.133840][  T401]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.133977][  T401]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.134201][  T401]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   21.134336][  T401]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.134476][  T401]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.134617][  T401]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.134760][  T401]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   21.134897][  T401]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.135032][  T401]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.135169][  T401]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.135399][  T401]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.135539][  T401]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.135682][  T401]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   21.135817][  T401]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.136041][  T401]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.136180][  T401]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.136316][  T401]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.136454][  T401]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.136688][  T401]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.136825][  T401]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.136963][  T401]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   21.137099][  T401]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   21.137327][  T401]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   21.137465][  T401]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   21.137602][  T401]  ? copy_msghdr_from_user (net/socket.c:2635)
[   21.137741][  T401]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   21.137998][  T401]  ? move_addr_to_kernel (net/socket.c:258)
[   21.138140][  T401]  ___sys_sendmsg (net/socket.c:2752)
[   21.138277][  T401]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.138413][  T401]  ? copy_msghdr_from_user (net/socket.c:2603)
[   21.138658][  T401]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   21.138797][  T401]  __sys_sendmsg (net/socket.c:2784)
[   21.138934][  T401]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   21.139077][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.139304][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.139440][  T401]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.139583][  T401]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.139829][  T401]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.139967][  T401]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.140136][  T401] RIP: 0033:0x7f245753408e
[   21.140277][  T401] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.140878][  T401] RSP: 002b:00007ffe2a905990 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.141172][  T401] RAX: ffffffffffffffda RBX: 00007ffe2a906148 RCX: 00007f245753408e
[   21.141374][  T401] RDX: 0000000000000000 RSI: 00007ffe2a905a40 RDI: 0000000000000005
[   21.141582][  T401] RBP: 00007ffe2a9059a0 R08: 0000000000000000 R09: 0000000000000000
[   21.141786][  T401] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacc
[   21.141993][  T401] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe2a906100
| [   21.194798][  T403] ------------[ cut here ]------------
| [   21.194998][  T403] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/403
| [   21.195279][  T403] Modules linked in: ipvtap ipvlan
| [   21.196133][  T403] Tainted: [W]=WARN
[   21.196281][  T403] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.196503][  T403] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.196739][  T403] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.197267][  T403] RSP: 0018:ffa0000000d87a80 EFLAGS: 00010286
[   21.197484][  T403] RAX: 00000000ffffffa6 RBX: ff11000013ee4c80 RCX: 1ff40000001b0f16
[   21.197748][  T403] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013ee4d3c
[   21.197996][  T403] RBP: ff1100000e8b4000 R08: 1fe22000027dc9a9 R09: ff1100000f99d180
[   21.198241][  T403] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   21.198498][  T403] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e8b4000
[   21.198774][  T403] FS:  00007fa25c0e4840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   21.199055][  T403] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.199268][  T403] CR2: 00007fa25c2f0690 CR3: 0000000004bd3004 CR4: 0000000000771ef0
[   21.199524][  T403] PKRU: 55555554
[   21.199684][  T403] Call Trace:
[   21.199831][  T403]  <TASK>
[   21.199951][  T403]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.200135][  T403]  ? notifier_call_chain (kernel/notifier.c:85)
[   21.200318][  T403]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.200469][  T403]  register_netdevice (net/core/dev.c:11488)
[   21.200737][  T403]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   21.201014][  T403]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   21.201254][  T403]  register_netdev (net/core/dev.c:11552)
[   21.201445][  T403]  loopback_net_init (drivers/net/loopback.c:218)
[   21.201637][  T403]  ops_init (net/core/net_namespace.c:137)
[   21.201803][  T403]  setup_net (net/core/net_namespace.c:446)
[   21.201957][  T403]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   21.202136][  T403]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   21.202320][  T403]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   21.202511][  T403]  copy_net_ns (net/core/net_namespace.c:579)
[   21.202708][  T403]  create_new_namespaces (kernel/nsproxy.c:132)
[   21.202895][  T403]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   21.203080][  T403]  ksys_unshare (kernel/fork.c:3243)
[   21.203262][  T403]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   21.203445][  T403]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   21.203636][  T403]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   21.203833][  T403]  ? __ia32_sys_open (fs/open.c:1374)
[   21.204019][  T403]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   21.204200][  T403]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   21.204383][  T403]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.204575][  T403]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.204770][  T403]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.204954][  T403]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.205170][  T403] RIP: 0033:0x7fa25c3a6bcb
[   21.205358][  T403] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   21.205903][  T403] RSP: 002b:00007ffde3831f38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   21.206157][  T403] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa25c3a6bcb
[   21.206402][  T403] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   21.206670][  T403] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   21.206916][  T403] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffde3834160
[   21.207164][  T403] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde383487e
| [   21.219215][  T403] ------------[ cut here ]------------
| [   21.219405][  T403] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/403
| [   21.219713][  T403] Modules linked in: ipvtap ipvlan
| [   21.220209][  T403] Tainted: [W]=WARN
[   21.220356][  T403] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.220578][  T403] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.220810][  T403] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.221325][  T403] RSP: 0018:ffa0000000d87918 EFLAGS: 00010286
[   21.221550][  T403] RAX: 00000000ffffffa6 RBX: ff11000013ee3700 RCX: 1ff40000001b0ee9
[   21.221811][  T403] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013ee37bc
[   21.222060][  T403] RBP: ff110000153d1000 R08: 1fe22000027dc6f9 R09: ff1100000f99d180
[   21.222304][  T403] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   21.222560][  T403] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000153d1000
[   21.222824][  T403] FS:  00007fa25c0e4840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   21.223106][  T403] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.223321][  T403] CR2: 00007fa25c2f0690 CR3: 0000000004bd3004 CR4: 0000000000771ef0
[   21.223579][  T403] PKRU: 55555554
[   21.223736][  T403] Call Trace:
[   21.223886][  T403]  <TASK>
[   21.224004][  T403]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.224189][  T403]  ? notifier_call_chain (kernel/notifier.c:85)
[   21.224371][  T403]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.224531][  T403]  register_netdevice (net/core/dev.c:11488)
[   21.224735][  T403]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   21.224948][  T403]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   21.225131][  T403]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   21.225314][  T403]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   21.225503][  T403]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   21.225699][  T403]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   21.225881][  T403]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   21.226069][  T403]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   21.226252][  T403]  ops_init (net/core/net_namespace.c:137)
[   21.226403][  T403]  setup_net (net/core/net_namespace.c:446)
[   21.226560][  T403]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   21.226755][  T403]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   21.226938][  T403]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   21.227121][  T403]  copy_net_ns (net/core/net_namespace.c:579)
[   21.227304][  T403]  create_new_namespaces (kernel/nsproxy.c:132)
[   21.227500][  T403]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   21.227695][  T403]  ksys_unshare (kernel/fork.c:3243)
[   21.227876][  T403]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   21.228056][  T403]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   21.228235][  T403]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   21.228417][  T403]  ? __ia32_sys_open (fs/open.c:1374)
[   21.228604][  T403]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   21.228801][  T403]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   21.228982][  T403]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.229162][  T403]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.229341][  T403]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.229534][  T403]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.229759][  T403] RIP: 0033:0x7fa25c3a6bcb
[   21.229945][  T403] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   21.230465][  T403] RSP: 002b:00007ffde3831f38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   21.230733][  T403] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa25c3a6bcb
[   21.230976][  T403] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   21.231223][  T403] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   21.231467][  T403] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffde3834160
[   21.231730][  T403] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde383487e
| [   21.236511][  T403] ------------[ cut here ]------------
| [   21.236703][  T403] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/403
| [   21.236981][  T403] Modules linked in: ipvtap ipvlan
| [   21.237484][  T403] Tainted: [W]=WARN
[   21.237640][  T403] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.237868][  T403] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.238116][  T403] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.238665][  T403] RSP: 0018:ffa0000000d878f8 EFLAGS: 00010286
[   21.238882][  T403] RAX: 00000000ffffffa6 RBX: ff110000104cb1c0 RCX: 1ff40000001b0ee5
[   21.239127][  T403] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104cb27c
[   21.239374][  T403] RBP: ff11000014304000 R08: 1fe2200002099651 R09: ff1100000f99d180
[   21.239632][  T403] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   21.239891][  T403] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000014304000
[   21.240140][  T403] FS:  00007fa25c0e4840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   21.240421][  T403] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.240662][  T403] CR2: 00007fa25c2f0690 CR3: 0000000004bd3004 CR4: 0000000000771ef0
[   21.240913][  T403] PKRU: 55555554
[   21.241061][  T403] Call Trace:
[   21.241210][  T403]  <TASK>
[   21.241326][  T403]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.241516][  T403]  ? notifier_call_chain (kernel/notifier.c:85)
[   21.241714][  T403]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.241869][  T403]  register_netdevice (net/core/dev.c:11488)
[   21.242055][  T403]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   21.242272][  T403]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   21.242457][  T403]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   21.242646][  T403]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   21.242840][  T403]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   21.243022][  T403]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   21.243208][  T403]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   21.243392][  T403]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   21.243587][  T403]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   21.243786][  T403]  vti_init_net (net/ipv4/ip_vti.c:517)
[   21.243971][  T403]  ops_init (net/core/net_namespace.c:137)
[   21.244122][  T403]  setup_net (net/core/net_namespace.c:446)
[   21.244271][  T403]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   21.244452][  T403]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   21.244643][  T403]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   21.244843][  T403]  copy_net_ns (net/core/net_namespace.c:579)
[   21.245028][  T403]  create_new_namespaces (kernel/nsproxy.c:132)
[   21.245214][  T403]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   21.245398][  T403]  ksys_unshare (kernel/fork.c:3243)
[   21.245589][  T403]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   21.245787][  T403]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   21.245977][  T403]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   21.246162][  T403]  ? __ia32_sys_open (fs/open.c:1374)
[   21.246346][  T403]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   21.246547][  T403]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   21.246744][  T403]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.246930][  T403]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.247112][  T403]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.247297][  T403]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.247522][  T403] RIP: 0033:0x7fa25c3a6bcb
[   21.247726][  T403] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   21.248248][  T403] RSP: 002b:00007ffde3831f38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   21.248508][  T403] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa25c3a6bcb
[   21.248769][  T403] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   21.249015][  T403] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   21.249260][  T403] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffde3834160
[   21.249517][  T403] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde383487e
| [   21.255090][  T403] ------------[ cut here ]------------
| [   21.255278][  T403] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/403
| [   21.255565][  T403] Modules linked in: ipvtap ipvlan
| [   21.256078][  T403] Tainted: [W]=WARN
[   21.256237][  T403] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.256452][  T403] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.256698][  T403] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.257215][  T403] RSP: 0018:ffa0000000d87a78 EFLAGS: 00010286
[   21.257434][  T403] RAX: 00000000ffffffa6 RBX: ff110000104caac0 RCX: 1ff40000001b0f15
[   21.257771][  T403] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104cab7c
[   21.258081][  T403] RBP: ff11000014321000 R08: 1fe2200002099571 R09: ff1100000f99d180
[   21.258381][  T403] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   21.258702][  T403] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000014321000
[   21.259008][  T403] FS:  00007fa25c0e4840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   21.259343][  T403] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.259623][  T403] CR2: 00007fa25c2f0690 CR3: 0000000004bd3004 CR4: 0000000000771ef0
[   21.259941][  T403] PKRU: 55555554
[   21.260142][  T403] Call Trace:
[   21.260344][  T403]  <TASK>
[   21.260521][  T403]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.260778][  T403]  ? notifier_call_chain (kernel/notifier.c:85)
[   21.261013][  T403]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.261217][  T403]  register_netdevice (net/core/dev.c:11488)
[   21.261452][  T403]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   21.261736][  T403]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.261971][  T403]  register_netdev (net/core/dev.c:11552)
[   21.262208][  T403]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   21.262443][  T403]  ops_init (net/core/net_namespace.c:137)
[   21.262668][  T403]  setup_net (net/core/net_namespace.c:446)
[   21.262874][  T403]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   21.263110][  T403]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   21.263344][  T403]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   21.263589][  T403]  copy_net_ns (net/core/net_namespace.c:579)
[   21.263837][  T403]  create_new_namespaces (kernel/nsproxy.c:132)
[   21.264077][  T403]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   21.264311][  T403]  ksys_unshare (kernel/fork.c:3243)
[   21.264553][  T403]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   21.264803][  T403]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   21.265037][  T403]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   21.265271][  T403]  ? __ia32_sys_open (fs/open.c:1374)
[   21.265516][  T403]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   21.265767][  T403]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   21.266002][  T403]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.266235][  T403]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.266459][  T403]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.266647][  T403]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.266875][  T403] RIP: 0033:0x7fa25c3a6bcb
[   21.267062][  T403] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   21.267589][  T403] RSP: 002b:00007ffde3831f38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   21.267848][  T403] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa25c3a6bcb
[   21.268093][  T403] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   21.268341][  T403] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   21.268594][  T403] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffde3834160
[   21.268853][  T403] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde383487e
| [   21.273568][  T403] ------------[ cut here ]------------
| [   21.273765][  T403] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/403
| [   21.274055][  T403] Modules linked in: ipvtap ipvlan
| [   21.274567][  T403] Tainted: [W]=WARN
[   21.274729][  T403] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.274944][  T403] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.275168][  T403] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.275735][  T403] RSP: 0018:ffa0000000d87a68 EFLAGS: 00010286
[   21.275947][  T403] RAX: 00000000ffffffa6 RBX: ff1100000ce0a200 RCX: 1ff40000001b0f13
[   21.276186][  T403] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce0a2bc
[   21.276424][  T403] RBP: ff110000153f4000 R08: 1fe22000019c1459 R09: ff1100000f99d180
[   21.277197][  T403] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   21.277502][  T403] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000153f4000
[   21.277811][  T403] FS:  00007fa25c0e4840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   21.278136][  T403] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.278401][  T403] CR2: 00007fa25c2f0690 CR3: 0000000004bd3004 CR4: 0000000000771ef0
[   21.278719][  T403] PKRU: 55555554
[   21.278916][  T403] Call Trace:
[   21.279113][  T403]  <TASK>
[   21.279281][  T403]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.279532][  T403]  ? notifier_call_chain (kernel/notifier.c:85)
[   21.279775][  T403]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.279977][  T403]  register_netdevice (net/core/dev.c:11488)
[   21.280209][  T403]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   21.280475][  T403]  register_netdev (net/core/dev.c:11552)
[   21.280730][  T403]  sit_init_net (net/ipv6/sit.c:1860)
[   21.280961][  T403]  ops_init (net/core/net_namespace.c:137)
[   21.281161][  T403]  setup_net (net/core/net_namespace.c:446)
[   21.281362][  T403]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   21.281601][  T403]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   21.281849][  T403]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   21.282081][  T403]  copy_net_ns (net/core/net_namespace.c:579)
[   21.282310][  T403]  create_new_namespaces (kernel/nsproxy.c:132)
[   21.282540][  T403]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   21.282733][  T403]  ksys_unshare (kernel/fork.c:3243)
[   21.282912][  T403]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   21.283093][  T403]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   21.283269][  T403]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   21.283449][  T403]  ? __ia32_sys_open (fs/open.c:1374)
[   21.283635][  T403]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   21.283825][  T403]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   21.284001][  T403]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.284178][  T403]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.284354][  T403]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.284543][  T403]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.284767][  T403] RIP: 0033:0x7fa25c3a6bcb
[   21.284950][  T403] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   21.285450][  T403] RSP: 002b:00007ffde3831f38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   21.285712][  T403] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa25c3a6bcb
[   21.285952][  T403] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   21.286190][  T403] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   21.286428][  T403] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffde3834160
[   21.286690][  T403] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde383487e
| [   21.291807][  T403] ------------[ cut here ]------------
| [   21.291982][  T403] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/403
| [   21.292257][  T403] Modules linked in: ipvtap ipvlan
| [   21.292768][  T403] Tainted: [W]=WARN
[   21.292913][  T403] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.293124][  T403] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.293343][  T403] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.294413][  T403] RSP: 0018:ffa0000000d87a78 EFLAGS: 00010286
[   21.294703][  T403] RAX: 00000000ffffffa6 RBX: ff110000133ab8c0 RCX: 1ff40000001b0f15
[   21.295011][  T403] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000133ab97c
[   21.295305][  T403] RBP: ff11000015421000 R08: 1fe2200002675731 R09: ff1100000f99d180
[   21.295609][  T403] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   21.295917][  T403] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000015421000
[   21.296218][  T403] FS:  00007fa25c0e4840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   21.296553][  T403] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.296832][  T403] CR2: 00007fa25c2f0690 CR3: 0000000004bd3004 CR4: 0000000000771ef0
[   21.297128][  T403] PKRU: 55555554
[   21.297325][  T403] Call Trace:
[   21.297530][  T403]  <TASK>
[   21.297717][  T403]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.297950][  T403]  ? notifier_call_chain (kernel/notifier.c:85)
[   21.298181][  T403]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.298385][  T403]  register_netdevice (net/core/dev.c:11488)
[   21.298717][  T403]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   21.298991][  T403]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.299229][  T403]  register_netdev (net/core/dev.c:11552)
[   21.299472][  T403]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   21.299703][  T403]  ops_init (net/core/net_namespace.c:137)
[   21.299855][  T403]  setup_net (net/core/net_namespace.c:446)
[   21.300007][  T403]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   21.300190][  T403]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   21.300373][  T403]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   21.300568][  T403]  copy_net_ns (net/core/net_namespace.c:579)
[   21.300770][  T403]  create_new_namespaces (kernel/nsproxy.c:132)
[   21.300956][  T403]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   21.301139][  T403]  ksys_unshare (kernel/fork.c:3243)
[   21.301323][  T403]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   21.301528][  T403]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   21.301730][  T403]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   21.301915][  T403]  ? __ia32_sys_open (fs/open.c:1374)
[   21.302105][  T403]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   21.302290][  T403]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   21.302474][  T403]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.302680][  T403]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.302862][  T403]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.303045][  T403]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.303260][  T403] RIP: 0033:0x7fa25c3a6bcb
[   21.303450][  T403] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   21.303993][  T403] RSP: 002b:00007ffde3831f38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   21.304241][  T403] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa25c3a6bcb
[   21.304496][  T403] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   21.304761][  T403] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   21.305007][  T403] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffde3834160
[   21.305255][  T403] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde383487e
| [   21.338541][  T404] ------------[ cut here ]------------
| [   21.338717][  T404] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/404
| [   21.338952][  T404] Modules linked in: ipvtap ipvlan
| [   21.339362][  T404] Tainted: [W]=WARN
[   21.339462][  T404] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.339632][  T404] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.339812][  T404] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.340283][  T404] RSP: 0018:ffa0000000e77020 EFLAGS: 00010286
[   21.340449][  T404] RAX: 00000000ffffffa6 RBX: ff11000006219540 RCX: 1ff40000001cedca
[   21.340659][  T404] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000062195fc
[   21.340857][  T404] RBP: ff1100000e8b4000 R08: 1fe2200000c432c1 R09: ff1100000f992e58
[   21.341056][  T404] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   21.341253][  T404] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   21.341452][  T404] FS:  00007f70452d0840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   21.341695][  T404] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.341861][  T404] CR2: 00007f70455a01a0 CR3: 000000001523f005 CR4: 0000000000771ef0
[   21.342059][  T404] PKRU: 55555554
[   21.342159][  T404] Call Trace:
[   21.342257][  T404]  <TASK>
[   21.342326][  T404]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.342460][  T404]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.342563][  T404]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   21.342700][  T404]  __dev_notify_flags (net/core/dev.c:9787)
[   21.342833][  T404]  ? netif_change_name (net/core/dev.c:1495)
[   21.342965][  T404]  ? __dev_change_flags (net/core/dev.c:9752)
[   21.343097][  T404]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   21.343228][  T404]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.343361][  T404]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   21.343502][  T404]  netif_change_flags (net/core/dev.c:9820)
[   21.343635][  T404]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   21.343773][  T404]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   21.343906][  T404]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   21.344040][  T404]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   21.344205][  T404]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.344339][  T404]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.344473][  T404]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.344613][  T404]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.344752][  T404]  ? __kernel_text_address (kernel/extable.c:79)
[   21.344885][  T404]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.345018][  T404]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.345149][  T404]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   21.345281][  T404]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.345414][  T404]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   21.345551][  T404]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.345767][  T404]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.345902][  T404]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   21.346034][  T404]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   21.346166][  T404]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   21.346298][  T404]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   21.346431][  T404]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   21.346573][  T404]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   21.346775][  T404]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   21.346910][  T404]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.347042][  T404]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.347175][  T404]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.347307][  T404]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   21.347439][  T404]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.347581][  T404]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.347768][  T404]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.347989][  T404]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.348123][  T404]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.348256][  T404]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.348389][  T404]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   21.348527][  T404]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.348747][  T404]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.348880][  T404]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.349014][  T404]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.349146][  T404]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.349278][  T404]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   21.349411][  T404]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.349551][  T404]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.349762][  T404]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.349894][  T404]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.350029][  T404]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.350161][  T404]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.350292][  T404]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.350425][  T404]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   21.350563][  T404]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   21.350755][  T404]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   21.350888][  T404]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   21.351021][  T404]  ? copy_msghdr_from_user (net/socket.c:2635)
[   21.351152][  T404]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   21.351315][  T404]  ? move_addr_to_kernel (net/socket.c:258)
[   21.351450][  T404]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.351586][  T404]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.351724][  T404]  ___sys_sendmsg (net/socket.c:2752)
[   21.351856][  T404]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   21.352021][  T404]  ? copy_msghdr_from_user (net/socket.c:2603)
[   21.352164][  T404]  __sys_sendmsg (net/socket.c:2784)
[   21.352297][  T404]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   21.352428][  T404]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   21.352600][  T404]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   21.352738][  T404]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.352871][  T404]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.353004][  T404]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.353138][  T404]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.353270][  T404]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.353435][  T404] RIP: 0033:0x7f704550a08e
[   21.353577][  T404] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.354054][  T404] RSP: 002b:00007ffe816a9c20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.354253][  T404] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f704550a08e
[   21.354450][  T404] RDX: 0000000000000000 RSI: 00007ffe816a9cd0 RDI: 0000000000000005
[   21.354661][  T404] RBP: 00007ffe816a9c30 R08: 0000000000000000 R09: 0000000000000000
[   21.354861][  T404] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacc
[   21.355058][  T404] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe816aa3a0
| [   21.482498][  T407] ------------[ cut here ]------------
| [   21.482686][  T407] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/407
| [   21.482948][  T407] Modules linked in: ipvtap ipvlan
| [   21.483391][  T407] Tainted: [W]=WARN
[   21.483505][  T407] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.483689][  T407] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.483874][  T407] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.484377][  T407] RSP: 0018:ffa0000000e970b0 EFLAGS: 00010286
[   21.484561][  T407] RAX: 00000000ffffffa6 RBX: ff11000012979700 RCX: 1ff40000001d2ddc
[   21.484775][  T407] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000129797bc
[   21.484987][  T407] RBP: ff11000007edc000 R08: 1fe220000252f2f9 R09: ff11000009c42e80
[   21.485196][  T407] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   21.485407][  T407] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   21.485625][  T407] FS:  00007f67d3e1d840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   21.485881][  T407] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.486058][  T407] CR2: 0000000000445730 CR3: 0000000013988004 CR4: 0000000000771ef0
[   21.486269][  T407] PKRU: 55555554
[   21.486376][  T407] Call Trace:
[   21.486482][  T407]  <TASK>
[   21.486560][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.486706][  T407]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   21.486848][  T407]  notifier_call_chain (kernel/notifier.c:85)
[   21.486992][  T407]  __netdev_upper_dev_link (net/core/dev.c:8931)
[   21.487133][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.487274][  T407]  ? netdev_wait_allrefs_any (net/core/dev.c:11629)
[   21.487414][  T407]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   21.487526][  T407]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   21.487709][  T407]  ? ida_destroy (lib/idr.c:623)
[   21.487855][  T407]  netdev_upper_dev_link (net/core/dev.c:8972)
[   21.487997][  T407]  ? __netdev_upper_dev_link (net/core/dev.c:8112)
[   21.488140][  T407] ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:625) ipvlan
[   21.488284][  T407]  ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182)
[   21.488426][  T407]  ? netdev_is_rx_handler_busy (net/core/dev.c:5878 (discriminator 4))
[   21.488573][  T407] ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   21.488723][  T407]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   21.488867][  T407]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   21.489009][  T407]  ? __dev_get_by_name (net/core/dev.c:883)
[   21.489149][  T407]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   21.489297][  T407]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   21.489442][  T407]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   21.489593][  T407]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.489737][  T407]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.489879][  T407]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.490019][  T407]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   21.490158][  T407]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.490303][  T407]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.490445][  T407]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.490592][  T407]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   21.490735][  T407]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.490875][  T407]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.491018][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.491161][  T407]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.491301][  T407]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.491441][  T407]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   21.491588][  T407]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.491734][  T407]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.491880][  T407]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.492019][  T407]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.492164][  T407]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.492307][  T407]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.492450][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.492599][  T407]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   21.492749][  T407]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   21.492890][  T407]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   21.493032][  T407]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   21.493174][  T407]  ? copy_msghdr_from_user (net/socket.c:2635)
[   21.493314][  T407]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   21.493492][  T407]  ? move_addr_to_kernel (net/socket.c:258)
[   21.493639][  T407]  ___sys_sendmsg (net/socket.c:2752)
[   21.493785][  T407]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.493926][  T407]  ? copy_msghdr_from_user (net/socket.c:2603)
[   21.494076][  T407]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   21.494224][  T407]  __sys_sendmsg (net/socket.c:2784)
[   21.494365][  T407]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   21.494517][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.494664][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.494807][  T407]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.494950][  T407]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.495090][  T407]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.495236][  T407]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.495412][  T407] RIP: 0033:0x7f67d405708e
[   21.495564][  T407] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.496067][  T407] RSP: 002b:00007ffd23ec7400 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.496287][  T407] RAX: ffffffffffffffda RBX: 00007ffd23ec7bb8 RCX: 00007f67d405708e
[   21.496501][  T407] RDX: 0000000000000000 RSI: 00007ffd23ec74b0 RDI: 0000000000000005
[   21.496717][  T407] RBP: 00007ffd23ec7410 R08: 0000000000000000 R09: 0000000000000000
[   21.496928][  T407] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacc
[   21.497140][  T407] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd23ec7b70
| [   21.498799][  T407] ------------[ cut here ]------------
| [   21.498931][  T407] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/407
| [   21.499164][  T407] Modules linked in: ipvtap ipvlan
| [   21.499580][  T407] Tainted: [W]=WARN
[   21.499687][  T407] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.499855][  T407] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.500030][  T407] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.500515][  T407] RSP: 0018:ffa0000000e971b0 EFLAGS: 00010286
[   21.500690][  T407] RAX: 00000000ffffffa6 RBX: ff11000012979380 RCX: 1ff40000001d2dfc
[   21.500893][  T407] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001297943c
[   21.501096][  T407] RBP: ff1100001535a000 R08: 1fe220000252f289 R09: ff11000009c42e80
[   21.501295][  T407] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   21.501501][  T407] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03cdf00
[   21.501709][  T407] FS:  00007f67d3e1d840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   21.501947][  T407] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.502117][  T407] CR2: 0000000000445730 CR3: 0000000013988004 CR4: 0000000000771ef0
[   21.502320][  T407] PKRU: 55555554
[   21.502421][  T407] Call Trace:
[   21.502527][  T407]  <TASK>
[   21.502598][  T407]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.502739][  T407]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.502844][  T407]  ? ida_destroy (lib/idr.c:623)
[   21.502979][  T407]  __dev_notify_flags (net/core/dev.c:9787)
[   21.503117][  T407]  ? netif_change_name (net/core/dev.c:1495)
[   21.503253][  T407]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   21.503389][  T407]  ? ipvlan_set_port_mode (drivers/net/ipvlan/ipvlan_main.c:17 (discriminator 1)) ipvlan
[   21.503563][  T407]  ? netif_stacked_transfer_operstate (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4593 net/core/dev.c:11142)
[   21.503734][  T407]  ? netif_carrier_on (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:85 net/sched/sch_generic.c:615)
[   21.503871][  T407]  ? ipvlan_link_new (drivers/net/ipvlan/ipvlan_main.c:643) ipvlan
[   21.504007][  T407]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   21.504143][  T407]  ? ipvtap_newlink (drivers/net/ipvlan/ipvtap.c:101) ipvtap
[   21.504280][  T407]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   21.504418][  T407]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   21.504559][  T407]  ? __dev_get_by_name (net/core/dev.c:883)
[   21.504700][  T407]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   21.504843][  T407]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   21.504983][  T407]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   21.505120][  T407]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.505255][  T407]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.505392][  T407]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.505535][  T407]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   21.505676][  T407]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.505817][  T407]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.505954][  T407]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.506091][  T407]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   21.506226][  T407]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.506361][  T407]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.506502][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.506641][  T407]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.506803][  T407]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.506941][  T407]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   21.507075][  T407]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.507214][  T407]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.507353][  T407]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.507494][  T407]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.507632][  T407]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.507774][  T407]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.507912][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.508048][  T407]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   21.508185][  T407]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   21.508322][  T407]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   21.508458][  T407]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   21.508599][  T407]  ? copy_msghdr_from_user (net/socket.c:2635)
[   21.508740][  T407]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   21.508909][  T407]  ? move_addr_to_kernel (net/socket.c:258)
[   21.509051][  T407]  ___sys_sendmsg (net/socket.c:2752)
[   21.509187][  T407]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.509322][  T407]  ? copy_msghdr_from_user (net/socket.c:2603)
[   21.509467][  T407]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   21.509612][  T407]  __sys_sendmsg (net/socket.c:2784)
[   21.509755][  T407]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   21.509894][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.510032][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.510168][  T407]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.510304][  T407]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.510440][  T407]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.510581][  T407]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.510754][  T407] RIP: 0033:0x7f67d405708e
[   21.510894][  T407] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.511377][  T407] RSP: 002b:00007ffd23ec7400 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.511588][  T407] RAX: ffffffffffffffda RBX: 00007ffd23ec7bb8 RCX: 00007f67d405708e
[   21.511795][  T407] RDX: 0000000000000000 RSI: 00007ffd23ec74b0 RDI: 0000000000000005
[   21.511998][  T407] RBP: 00007ffd23ec7410 R08: 0000000000000000 R09: 0000000000000000
[   21.512200][  T407] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacc
[   21.512404][  T407] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd23ec7b70
| [   22.121280][  T512] ------------[ cut here ]------------
| [   22.121578][  T512] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/512
| [   22.122029][  T512] Modules linked in: ipvtap ipvlan
| [   22.122728][  T512] Tainted: [W]=WARN
[   22.122951][  T512] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.123250][  T512] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.123563][  T512] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.124314][  T512] RSP: 0018:ffa0000001317020 EFLAGS: 00010286
[   22.124648][  T512] RAX: 00000000ffffffa6 RBX: ff11000012978040 RCX: 1ff4000000262dca
[   22.125124][  T512] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000129780fc
[   22.125506][  T512] RBP: ff1100000e4ba000 R08: 1fe220000252f021 R09: ff11000016e70b58
[   22.125876][  T512] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   22.126240][  T512] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.126708][  T512] FS:  00007fe40935c840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   22.127097][  T512] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.127381][  T512] CR2: 000000001272c988 CR3: 0000000004f06005 CR4: 0000000000771ef0
[   22.127707][  T512] PKRU: 55555554
[   22.127935][  T512] Call Trace:
[   22.128188][  T512]  <TASK>
[   22.128388][  T512]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.128688][  T512]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.129035][  T512]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.129328][  T512]  __dev_notify_flags (net/core/dev.c:9787)
[   22.129635][  T512]  ? netif_change_name (net/core/dev.c:1495)
[   22.129947][  T512]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.130244][  T512]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.130554][  T512]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.130851][  T512]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.131136][  T512]  netif_change_flags (net/core/dev.c:9820)
[   22.131373][  T512]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.131647][  T512]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.132017][  T512]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.132288][  T512]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.132554][  T512]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.132746][  T512]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.132930][  T512]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.133109][  T512]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.133293][  T512]  ? __kernel_text_address (kernel/extable.c:79)
[   22.133479][  T512]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.133683][  T512]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.133863][  T512]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.134042][  T512]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.134224][  T512]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.134404][  T512]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.134594][  T512]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.134788][  T512]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.134970][  T512]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.135151][  T512]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.135334][  T512]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.135526][  T512]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.135723][  T512]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.135907][  T512]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.136089][  T512]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.136270][  T512]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.136454][  T512]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.136638][  T512]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.136831][  T512]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.137017][  T512]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.137201][  T512]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.137386][  T512]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.137578][  T512]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.137777][  T512]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.137965][  T512]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.138149][  T512]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.138331][  T512]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.138521][  T512]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.138720][  T512]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.138899][  T512]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.139084][  T512]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.139266][  T512]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.139451][  T512]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.139646][  T512]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.139841][  T512]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.140023][  T512]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.140204][  T512]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.140413][  T512]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.140609][  T512]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.140810][  T512]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.140994][  T512]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.141180][  T512]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.141365][  T512]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.141562][  T512]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.141795][  T512]  ? move_addr_to_kernel (net/socket.c:258)
[   22.141983][  T512]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.142168][  T512]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.142353][  T512]  ___sys_sendmsg (net/socket.c:2752)
[   22.142538][  T512]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.142768][  T512]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.142996][  T512]  __sys_sendmsg (net/socket.c:2784)
[   22.143180][  T512]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.143368][  T512]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.143597][  T512]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.143794][  T512]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.143979][  T512]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.144166][  T512]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.144353][  T512]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.144546][  T512]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.144772][  T512] RIP: 0033:0x7fe40959608e
[   22.144965][  T512] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.145499][  T512] RSP: 002b:00007ffc5c5ca690 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.145768][  T512] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe40959608e
[   22.146022][  T512] RDX: 0000000000000000 RSI: 00007ffc5c5ca740 RDI: 0000000000000005
[   22.146272][  T512] RBP: 00007ffc5c5ca6a0 R08: 0000000000000000 R09: 0000000000000000
[   22.146531][  T512] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.146795][  T512] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc5c5cae00
| [   22.152163][  T509] ------------[ cut here ]------------
| [   22.152356][  T509] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/509
| [   22.152677][  T509] Modules linked in: ipvtap ipvlan
| [   22.153231][  T509] Tainted: [W]=WARN
[   22.153384][  T509] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.153625][  T509] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.153869][  T509] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.154397][  T509] RSP: 0018:ffa00000013e7020 EFLAGS: 00010286
[   22.154629][  T509] RAX: 00000000ffffffa6 RBX: ff11000012abb700 RCX: 1ff400000027cdca
[   22.154897][  T509] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012abb7bc
[   22.155151][  T509] RBP: ff1100000feba000 R08: 1fe22000025576f9 R09: ff11000016dc5158
[   22.155411][  T509] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   22.155751][  T509] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.156063][  T509] FS:  00007fa7f1ef8840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   22.156414][  T509] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.156716][  T509] CR2: 000000001d3de988 CR3: 0000000013304003 CR4: 0000000000771ef0
[   22.157028][  T509] PKRU: 55555554
[   22.157234][  T509] Call Trace:
[   22.157446][  T509]  <TASK>
[   22.157681][  T509]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.157954][  T509]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.158206][  T509]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.158500][  T509]  __dev_notify_flags (net/core/dev.c:9787)
[   22.158797][  T509]  ? netif_change_name (net/core/dev.c:1495)
[   22.159190][  T509]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.159506][  T509]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.159815][  T509]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.160119][  T509]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.160421][  T509]  netif_change_flags (net/core/dev.c:9820)
[   22.160743][  T509]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.161022][  T509]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.161289][  T509]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.161588][  T509]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.161916][  T509]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.162236][  T509]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.162480][  T509]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.162768][  T509]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.163047][  T509]  ? __kernel_text_address (kernel/extable.c:79)
[   22.163340][  T509]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.163615][  T509]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.163879][  T509]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.164165][  T509]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.164444][  T509]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.164734][  T509]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.165009][  T509]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.165249][  T509]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.165458][  T509]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.165663][  T509]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.165849][  T509]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.166037][  T509]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.166225][  T509]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.166411][  T509]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.166605][  T509]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.166805][  T509]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.166989][  T509]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.167170][  T509]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.167351][  T509]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.167542][  T509]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.167738][  T509]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.167923][  T509]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.168106][  T509]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.168323][  T509]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.168518][  T509]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.168718][  T509]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.168904][  T509]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.169088][  T509]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.169276][  T509]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.169461][  T509]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.169669][  T509]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.169857][  T509]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.170045][  T509]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.170237][  T509]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.170421][  T509]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.170618][  T509]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.170822][  T509]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.171008][  T509]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.171198][  T509]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.171386][  T509]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.171576][  T509]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.171772][  T509]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.171965][  T509]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.172146][  T509]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.172366][  T509]  ? move_addr_to_kernel (net/socket.c:258)
[   22.172559][  T509]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.172761][  T509]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.172948][  T509]  ___sys_sendmsg (net/socket.c:2752)
[   22.173131][  T509]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.173350][  T509]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.173558][  T509]  __sys_sendmsg (net/socket.c:2784)
[   22.173762][  T509]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.173948][  T509]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.174168][  T509]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.174355][  T509]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.174547][  T509]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.174750][  T509]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.174940][  T509]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.175126][  T509]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.175342][  T509] RIP: 0033:0x7fa7f213208e
[   22.175538][  T509] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.176073][  T509] RSP: 002b:00007fff72e89940 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.176323][  T509] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa7f213208e
[   22.176582][  T509] RDX: 0000000000000000 RSI: 00007fff72e899f0 RDI: 0000000000000005
[   22.176843][  T509] RBP: 00007fff72e89950 R08: 0000000000000000 R09: 0000000000000000
[   22.177096][  T509] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.177351][  T509] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff72e8a0b0
| [   22.205840][  T531] ------------[ cut here ]------------
| [   22.206012][  T531] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/531
| [   22.206251][  T531] Modules linked in: ipvtap ipvlan
| [   22.206749][  T531] Tainted: [W]=WARN
[   22.206854][  T531] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.207022][  T531] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.207199][  T531] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.207747][  T531] RSP: 0018:ffa0000001407020 EFLAGS: 00010286
[   22.207918][  T531] RAX: 00000000ffffffa6 RBX: ff11000012aba740 RCX: 1ff4000000280dca
[   22.208119][  T531] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012aba7fc
[   22.208321][  T531] RBP: ff1100000f392000 R08: 1fe2200002557501 R09: ff11000013450b58
[   22.208532][  T531] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   22.208804][  T531] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.209007][  T531] FS:  00007f0a2f82f840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   22.209248][  T531] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.209420][  T531] CR2: 000055bde0bcf548 CR3: 000000000f71e005 CR4: 0000000000771ef0
[   22.209632][  T531] PKRU: 55555554
[   22.209793][  T531] Call Trace:
[   22.209895][  T531]  <TASK>
[   22.209966][  T531]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.210103][  T531]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.210204][  T531]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.210343][  T531]  __dev_notify_flags (net/core/dev.c:9787)
[   22.210480][  T531]  ? netif_change_name (net/core/dev.c:1495)
[   22.210622][  T531]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.210815][  T531]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.210951][  T531]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.211090][  T531]  ? trace_hrtimer_start (./include/trace/events/timer.h:223 (discriminator 22))
[   22.211233][  T531]  netif_change_flags (net/core/dev.c:9820)
[   22.211372][  T531]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.211512][  T531]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.211647][  T531]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.211842][  T531]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.211980][  T531]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.212114][  T531]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.212249][  T531]  ? reinit_class (kernel/locking/lockdep.c:6290 (discriminator 1))
[   22.212386][  T531]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.212524][  T531]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.212717][  T531]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.212855][  T531]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.212990][  T531]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.213125][  T531]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.213258][  T531]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[   22.213428][  T531]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   22.213567][  T531]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   22.213790][  T531]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.213925][  T531]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.214065][  T531]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.214202][  T531]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.214339][  T531]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.214476][  T531]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.214614][  T531]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.214831][  T531]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.214969][  T531]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.215104][  T531]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.215240][  T531]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.215375][  T531]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.215512][  T531]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.215648][  T531]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.215902][  T531]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.216037][  T531]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.216170][  T531]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.216304][  T531]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.216443][  T531]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.216583][  T531]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.216810][  T531]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.216950][  T531]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.217087][  T531]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.217223][  T531]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.217364][  T531]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.217501][  T531]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.217637][  T531]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.217866][  T531]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.218003][  T531]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.218140][  T531]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.218278][  T531]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.218417][  T531]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.218560][  T531]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.218774][  T531]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.218909][  T531]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.219078][  T531]  ? move_addr_to_kernel (net/socket.c:258)
[   22.219215][  T531]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.219353][  T531]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.219497][  T531]  ___sys_sendmsg (net/socket.c:2752)
[   22.219632][  T531]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.219889][  T531]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.220040][  T531]  __sys_sendmsg (net/socket.c:2784)
[   22.220177][  T531]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.220316][  T531]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.220487][  T531]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.220628][  T531]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.220863][  T531]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.220999][  T531]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.221135][  T531]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.221268][  T531]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.221438][  T531] RIP: 0033:0x7f0a2fa6908e
[   22.221590][  T531] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.222165][  T531] RSP: 002b:00007fff794ba510 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.222371][  T531] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0a2fa6908e
[   22.222577][  T531] RDX: 0000000000000000 RSI: 00007fff794ba5c0 RDI: 0000000000000005
[   22.222873][  T531] RBP: 00007fff794ba520 R08: 0000000000000000 R09: 0000000000000000
[   22.223074][  T531] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.223275][  T531] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff794bac80
| [   22.263547][  T538] ------------[ cut here ]------------
| [   22.263728][  T538] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/538
| [   22.263970][  T538] Modules linked in: ipvtap ipvlan
| [   22.264386][  T538] Tainted: [W]=WARN
[   22.264493][  T538] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.264673][  T538] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.264851][  T538] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.265337][  T538] RSP: 0018:ffa0000001377020 EFLAGS: 00010286
[   22.265508][  T538] RAX: 00000000ffffffa6 RBX: ff11000014138740 RCX: 1ff400000026edca
[   22.265715][  T538] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000141387fc
[   22.265918][  T538] RBP: ff11000012cb2000 R08: 1fe2200002827101 R09: ff11000016f7d158
[   22.266120][  T538] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   22.266319][  T538] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.266526][  T538] FS:  00007f91bca69840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   22.266790][  T538] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.266959][  T538] CR2: 00007f1f56c9f888 CR3: 0000000017024004 CR4: 0000000000771ef0
[   22.267160][  T538] PKRU: 55555554
[   22.267272][  T538] Call Trace:
[   22.267377][  T538]  <TASK>
[   22.267451][  T538]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.267593][  T538]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.267701][  T538]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.267839][  T538]  __dev_notify_flags (net/core/dev.c:9787)
[   22.267978][  T538]  ? netif_change_name (net/core/dev.c:1495)
[   22.268112][  T538]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.268246][  T538]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.268384][  T538]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.268524][  T538]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.268666][  T538]  netif_change_flags (net/core/dev.c:9820)
[   22.268805][  T538]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.269186][  T538]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.269323][  T538]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.269460][  T538]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.269631][  T538]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.269767][  T538]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.270103][  T538]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.270239][  T538]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.270374][  T538]  ? __kernel_text_address (kernel/extable.c:79)
[   22.270513][  T538]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.270657][  T538]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.270792][  T538]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.270927][  T538]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.271068][  T538]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.271213][  T538]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.271350][  T538]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.271506][  T538]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.271641][  T538]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.271847][  T538]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.272040][  T538]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.272178][  T538]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.272314][  T538]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.272451][  T538]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.272591][  T538]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.272782][  T538]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.272923][  T538]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.273056][  T538]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.273187][  T538]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.273330][  T538]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.273468][  T538]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.273610][  T538]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.273802][  T538]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.273937][  T538]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.274071][  T538]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.274204][  T538]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.274345][  T538]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.274478][  T538]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.274621][  T538]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.274812][  T538]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.274946][  T538]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.275080][  T538]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.275213][  T538]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.275357][  T538]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.275495][  T538]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.275650][  T538]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.275842][  T538]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.275975][  T538]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.276108][  T538]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.276242][  T538]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.276380][  T538]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.276521][  T538]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.276718][  T538]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.276856][  T538]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.277021][  T538]  ? move_addr_to_kernel (net/socket.c:258)
[   22.277159][  T538]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.277295][  T538]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.277431][  T538]  ___sys_sendmsg (net/socket.c:2752)
[   22.277569][  T538]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.277795][  T538]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.277942][  T538]  __sys_sendmsg (net/socket.c:2784)
[   22.278079][  T538]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.278212][  T538]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.278389][  T538]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.278527][  T538]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.278722][  T538]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.278856][  T538]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.278993][  T538]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.279128][  T538]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.279295][  T538] RIP: 0033:0x7f91bcca308e
[   22.279443][  T538] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.280005][  T538] RSP: 002b:00007ffea9631570 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.280208][  T538] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f91bcca308e
[   22.280415][  T538] RDX: 0000000000000000 RSI: 00007ffea9631620 RDI: 0000000000000005
[   22.280621][  T538] RBP: 00007ffea9631580 R08: 0000000000000000 R09: 0000000000000000
[   22.280905][  T538] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.281110][  T538] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffea9631ce0
| [   22.294911][  T513] ------------[ cut here ]------------
| [   22.295072][  T513] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/513
| [   22.295312][  T513] Modules linked in: ipvtap ipvlan
| [   22.295746][  T513] Tainted: [W]=WARN
[   22.295849][  T513] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.296023][  T513] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.296199][  T513] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.296690][  T513] RSP: 0018:ffa00000012c7020 EFLAGS: 00010286
[   22.296863][  T513] RAX: 00000000ffffffa6 RBX: ff11000005704200 RCX: 1ff4000000258dca
[   22.297153][  T513] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000057042bc
[   22.297356][  T513] RBP: ff1100000fef2000 R08: 1fe2200000ae0859 R09: ff11000016e75158
[   22.297563][  T513] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   22.297775][  T513] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.297980][  T513] FS:  00007fef0273c840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   22.298309][  T513] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.298483][  T513] CR2: 00007fed1578b020 CR3: 000000000f6bb006 CR4: 0000000000771ef0
[   22.298701][  T513] PKRU: 55555554
[   22.298811][  T513] Call Trace:
[   22.299000][  T513]  <TASK>
[   22.299070][  T513]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[   22.299209][  T513]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.299346][  T513]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.299448][  T513]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.299849][  T513]  __dev_notify_flags (net/core/dev.c:9787)
[   22.299986][  T513]  ? netif_change_name (net/core/dev.c:1495)
[   22.300122][  T513]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.300261][  T513]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.300397][  T513]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.300537][  T513]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.300680][  T513]  netif_change_flags (net/core/dev.c:9820)
[   22.300815][  T513]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.300950][  T513]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.301087][  T513]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.301225][  T513]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.301392][  T513]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.301531][  T513]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.301669][  T513]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.301808][  T513]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.302029][  T513]  ? __kernel_text_address (kernel/extable.c:79)
[   22.302167][  T513]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.302303][  T513]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.302437][  T513]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.302669][  T513]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.302805][  T513]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.302937][  T513]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.303070][  T513]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.303290][  T513]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.303431][  T513]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.303569][  T513]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.303708][  T513]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.304019][  T513]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.304157][  T513]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.304293][  T513]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.304431][  T513]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.304657][  T513]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.304793][  T513]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.304926][  T513]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.305057][  T513]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.305277][  T513]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.305411][  T513]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.305550][  T513]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.305687][  T513]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.305993][  T513]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.306224][  T513]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.306462][  T513]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.306603][  T513]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.306742][  T513]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.306879][  T513]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.307013][  T513]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.307234][  T513]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.307553][  T513]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.307696][  T513]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.307920][  T513]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.308055][  T513]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.308194][  T513]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.308331][  T513]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.308467][  T513]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.308607][  T513]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.308833][  T513]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.308972][  T513]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.309110][  T513]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.309247][  T513]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.309382][  T513]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.309640][  T513]  ? move_addr_to_kernel (net/socket.c:258)
[   22.309784][  T513]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.309920][  T513]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.310059][  T513]  ___sys_sendmsg (net/socket.c:2752)
[   22.310192][  T513]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.310362][  T513]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.310516][  T513]  __sys_sendmsg (net/socket.c:2784)
[   22.310658][  T513]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.310880][  T513]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.311059][  T513]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.311193][  T513]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.311415][  T513]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.311555][  T513]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.311695][  T513]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.311830][  T513]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.312006][  T513] RIP: 0033:0x7fef0297608e
[   22.312241][  T513] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.312735][  T513] RSP: 002b:00007ffe08a80f40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.312938][  T513] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fef0297608e
[   22.313138][  T513] RDX: 0000000000000000 RSI: 00007ffe08a80ff0 RDI: 0000000000000005
[   22.313341][  T513] RBP: 00007ffe08a80f50 R08: 0000000000000000 R09: 0000000000000000
[   22.313820][  T513] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.314030][  T513] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe08a816b0
| [   22.404641][  T510] ------------[ cut here ]------------
| [   22.404824][  T510] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/510
| [   22.405069][  T510] Modules linked in: ipvtap ipvlan
| [   22.405506][  T510] Tainted: [W]=WARN
[   22.405614][  T510] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.405800][  T510] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.405986][  T510] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.406494][  T510] RSP: 0018:ffa00000013f7020 EFLAGS: 00010286
[   22.406675][  T510] RAX: 00000000ffffffa6 RBX: ff110000133abc40 RCX: 1ff400000027edca
[   22.406882][  T510] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000133abcfc
[   22.407089][  T510] RBP: ff1100000e56a000 R08: 1fe22000026757a1 R09: ff110000164ed158
[   22.407295][  T510] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   22.407503][  T510] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.407714][  T510] FS:  00007f84c446f840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   22.407953][  T510] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.408128][  T510] CR2: 000000003d4d7988 CR3: 00000000121d6002 CR4: 0000000000771ef0
[   22.408336][  T510] PKRU: 55555554
[   22.408440][  T510] Call Trace:
[   22.408550][  T510]  <TASK>
[   22.408623][  T510]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.408771][  T510]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.408877][  T510]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.409018][  T510]  __dev_notify_flags (net/core/dev.c:9787)
[   22.409160][  T510]  ? netif_change_name (net/core/dev.c:1495)
[   22.409299][  T510]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.409440][  T510]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.409580][  T510]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.409721][  T510]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.409864][  T510]  netif_change_flags (net/core/dev.c:9820)
[   22.410003][  T510]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.410141][  T510]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.410281][  T510]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.410418][  T510]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.410596][  T510]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.410737][  T510]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.410875][  T510]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.411013][  T510]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.411151][  T510]  ? __kernel_text_address (kernel/extable.c:79)
[   22.411292][  T510]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.411434][  T510]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.411573][  T510]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.411717][  T510]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.411853][  T510]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.411988][  T510]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.412125][  T510]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.412263][  T510]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.412404][  T510]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.412544][  T510]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.412688][  T510]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.412827][  T510]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.412967][  T510]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.413113][  T510]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.413249][  T510]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.413383][  T510]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.413521][  T510]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.413662][  T510]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.413795][  T510]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.413935][  T510]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.414068][  T510]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.414200][  T510]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.414336][  T510]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.414475][  T510]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.414619][  T510]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.414760][  T510]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.414897][  T510]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.415030][  T510]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.415169][  T510]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.415303][  T510]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.415441][  T510]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.415581][  T510]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.415721][  T510]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.415860][  T510]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.415995][  T510]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.416136][  T510]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.416271][  T510]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.416407][  T510]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.416547][  T510]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.416688][  T510]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.416826][  T510]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.416963][  T510]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.417102][  T510]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.417242][  T510]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.417413][  T510]  ? move_addr_to_kernel (net/socket.c:258)
[   22.417554][  T510]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.417694][  T510]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.417833][  T510]  ___sys_sendmsg (net/socket.c:2752)
[   22.417967][  T510]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.418134][  T510]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.418286][  T510]  __sys_sendmsg (net/socket.c:2784)
[   22.418426][  T510]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.418568][  T510]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.418745][  T510]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.418884][  T510]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.419021][  T510]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.419156][  T510]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.419293][  T510]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.419430][  T510]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.419603][  T510] RIP: 0033:0x7f84c46a908e
[   22.419751][  T510] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.420230][  T510] RSP: 002b:00007fff84805c50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.420433][  T510] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f84c46a908e
[   22.420640][  T510] RDX: 0000000000000000 RSI: 00007fff84805d00 RDI: 0000000000000005
[   22.420847][  T510] RBP: 00007fff84805c60 R08: 0000000000000000 R09: 0000000000000000
[   22.421047][  T510] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.421245][  T510] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff848063c0
| [   22.443993][  T546] ------------[ cut here ]------------
| [   22.444164][  T546] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/546
| [   22.444407][  T546] Modules linked in: ipvtap ipvlan
| [   22.445449][  T546] Tainted: [W]=WARN
[   22.445566][  T546] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.445827][  T546] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.446006][  T546] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.446481][  T546] RSP: 0018:ffa0000001537020 EFLAGS: 00010286
[   22.446736][  T546] RAX: 00000000ffffffa6 RBX: ff110000133ab000 RCX: 1ff40000002a6dca
[   22.446937][  T546] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000133ab0bc
[   22.447138][  T546] RBP: ff1100000e8ca000 R08: 1fe2200002675619 R09: ff11000014b55158
[   22.447336][  T546] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[   22.447539][  T546] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.447832][  T546] FS:  00007fb366fca840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   22.448068][  T546] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.448237][  T546] CR2: 000000003409e988 CR3: 0000000015a03006 CR4: 0000000000771ef0
[   22.448439][  T546] PKRU: 55555554
[   22.448545][  T546] Call Trace:
[   22.448645][  T546]  <TASK>
[   22.448793][  T546]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.448932][  T546]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.449034][  T546]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.449169][  T546]  __dev_notify_flags (net/core/dev.c:9787)
[   22.449305][  T546]  ? netif_change_name (net/core/dev.c:1495)
[   22.449439][  T546]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.449578][  T546]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.449920][  T546]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.450054][  T546]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.450189][  T546]  netif_change_flags (net/core/dev.c:9820)
[   22.450324][  T546]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.450461][  T546]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.450602][  T546]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.450842][  T546]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.451008][  T546]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.451140][  T546]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.451273][  T546]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.451404][  T546]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.451542][  T546]  ? __kernel_text_address (kernel/extable.c:79)
[   22.451788][  T546]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.451929][  T546]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.452061][  T546]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.452196][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.452332][  T546]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.452466][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.452603][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.452844][  T546]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.452982][  T546]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.453117][  T546]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.453252][  T546]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.453390][  T546]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.453534][  T546]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.453782][  T546]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.453921][  T546]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.454055][  T546]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.454189][  T546]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.454322][  T546]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.454456][  T546]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.454596][  T546]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.454822][  T546]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.454957][  T546]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.455088][  T546]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.455221][  T546]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.455354][  T546]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.455488][  T546]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.455626][  T546]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.455843][  T546]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.455980][  T546]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.456112][  T546]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.456246][  T546]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.456380][  T546]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.456519][  T546]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.456712][  T546]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.456849][  T546]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.456985][  T546]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.457121][  T546]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.457256][  T546]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.457393][  T546]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.457534][  T546]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.457722][  T546]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.457857][  T546]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.457990][  T546]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.458125][  T546]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.458292][  T546]  ? move_addr_to_kernel (net/socket.c:258)
[   22.458428][  T546]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.458567][  T546]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.458759][  T546]  ___sys_sendmsg (net/socket.c:2752)
[   22.458894][  T546]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.459061][  T546]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.459206][  T546]  __sys_sendmsg (net/socket.c:2784)
[   22.459341][  T546]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.459474][  T546]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.459648][  T546]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.459818][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.459952][  T546]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.460086][  T546]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.460222][  T546]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.460355][  T546]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.460527][  T546] RIP: 0033:0x7fb36720408e
[   22.460676][  T546] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.461156][  T546] RSP: 002b:00007ffdfdeb9600 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.461359][  T546] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb36720408e
[   22.461566][  T546] RDX: 0000000000000000 RSI: 00007ffdfdeb96b0 RDI: 0000000000000005
[   22.461772][  T546] RBP: 00007ffdfdeb9610 R08: 0000000000000000 R09: 0000000000000000
[   22.461973][  T546] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.462171][  T546] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdfdeb9d70
| [   22.472504][  T563] ------------[ cut here ]------------
| [   22.472685][  T563] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/563
| [   22.472918][  T563] Modules linked in: ipvtap ipvlan
| [   22.473328][  T563] Tainted: [W]=WARN
[   22.473429][  T563] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.473602][  T563] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.473780][  T563] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.474259][  T563] RSP: 0018:ffa00000015a7020 EFLAGS: 00010286
[   22.474432][  T563] RAX: 00000000ffffffa6 RBX: ff11000015ec2200 RCX: 1ff40000002b4dca
[   22.474641][  T563] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015ec22bc
[   22.474904][  T563] RBP: ff11000012baa000 R08: 1fe2200002bd8459 R09: ff11000015090b58
[   22.475103][  T563] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[   22.475303][  T563] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.475510][  T563] FS:  00007fb1d0621840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   22.475806][  T563] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.475977][  T563] CR2: 00007fb1d08f11a0 CR3: 0000000017338004 CR4: 0000000000771ef0
[   22.476176][  T563] PKRU: 55555554
[   22.476394][  T563] Call Trace:
[   22.476517][  T563]  <TASK>
[   22.476588][  T563]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[   22.476784][  T563]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.476919][  T563]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.477019][  T563]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.477208][  T563]  __dev_notify_flags (net/core/dev.c:9787)
[   22.477345][  T563]  ? netif_change_name (net/core/dev.c:1495)
[   22.477482][  T563]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.477621][  T563]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.477812][  T563]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.477945][  T563]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.478081][  T563]  netif_change_flags (net/core/dev.c:9820)
[   22.478215][  T563]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.478350][  T563]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.478488][  T563]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.478629][  T563]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.478852][  T563]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.478985][  T563]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.479117][  T563]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.479250][  T563]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.479384][  T563]  ? __kernel_text_address (kernel/extable.c:79)
[   22.479520][  T563]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.479712][  T563]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.479846][  T563]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.479981][  T563]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.480113][  T563]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.480245][  T563]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.480376][  T563]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.480517][  T563]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.480733][  T563]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.480868][  T563]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.481001][  T563]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.481136][  T563]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.481271][  T563]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.481405][  T563]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.481540][  T563]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.481737][  T563]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.481869][  T563]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.482001][  T563]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.482134][  T563]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.482269][  T563]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.482401][  T563]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.482536][  T563]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.482735][  T563]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.482869][  T563]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.483002][  T563]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.483136][  T563]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.483268][  T563]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.483401][  T563]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.483614][  T563]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.483802][  T563]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.483938][  T563]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.484072][  T563]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.484203][  T563]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.484339][  T563]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.484472][  T563]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.484611][  T563]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.484800][  T563]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.484935][  T563]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.485067][  T563]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.485199][  T563]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.485334][  T563]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.485467][  T563]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.485604][  T563]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.485815][  T563]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.485980][  T563]  ? move_addr_to_kernel (net/socket.c:258)
[   22.486116][  T563]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.486249][  T563]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.486382][  T563]  ___sys_sendmsg (net/socket.c:2752)
[   22.486516][  T563]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.486757][  T563]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.486900][  T563]  __sys_sendmsg (net/socket.c:2784)
[   22.487033][  T563]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.487164][  T563]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.487331][  T563]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.487463][  T563]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.487598][  T563]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.487816][  T563]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.487949][  T563]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.488080][  T563]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.488249][  T563] RIP: 0033:0x7fb1d085b08e
[   22.488389][  T563] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.488949][  T563] RSP: 002b:00007ffc87cc9c40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.489149][  T563] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb1d085b08e
[   22.489350][  T563] RDX: 0000000000000000 RSI: 00007ffc87cc9cf0 RDI: 0000000000000005
[   22.489556][  T563] RBP: 00007ffc87cc9c50 R08: 0000000000000000 R09: 0000000000000000
[   22.489845][  T563] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.490048][  T563] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc87cca3b0
| [   22.501073][  T552] ------------[ cut here ]------------
| [   22.501240][  T552] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/552
| [   22.501481][  T552] Modules linked in: ipvtap ipvlan
| [   22.501930][  T552] Tainted: [W]=WARN
[   22.502033][  T552] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.502209][  T552] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.502393][  T552] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.502901][  T552] RSP: 0018:ffa0000001517020 EFLAGS: 00010286
[   22.503092][  T552] RAX: 00000000ffffffa6 RBX: ff11000015ec3c40 RCX: 1ff40000002a2dca
[   22.503298][  T552] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015ec3cfc
[   22.503510][  T552] RBP: ff1100000d7fa000 R08: 1fe2200002bd87a1 R09: ff1100000f882e58
[   22.503725][  T552] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   22.503926][  T552] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.504144][  T552] FS:  00007fd830e7b840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   22.504393][  T552] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.504576][  T552] CR2: 00007ffc9e2fb838 CR3: 0000000016fe4005 CR4: 0000000000771ef0
[   22.504793][  T552] PKRU: 55555554
[   22.504897][  T552] Call Trace:
[   22.505000][  T552]  <TASK>
[   22.505072][  T552]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.505219][  T552]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.505325][  T552]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.505468][  T552]  __dev_notify_flags (net/core/dev.c:9787)
[   22.505616][  T552]  ? netif_change_name (net/core/dev.c:1495)
[   22.505763][  T552]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.505902][  T552]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.506039][  T552]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.506182][  T552]  ? trace_hrtimer_start (./include/trace/events/timer.h:223 (discriminator 22))
[   22.506323][  T552]  netif_change_flags (net/core/dev.c:9820)
[   22.506463][  T552]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.506609][  T552]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.506751][  T552]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.506889][  T552]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.507026][  T552]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.507164][  T552]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.507301][  T552]  ? reinit_class (kernel/locking/lockdep.c:6290 (discriminator 1))
[   22.507442][  T552]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.507587][  T552]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.507732][  T552]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.507874][  T552]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.508011][  T552]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.508149][  T552]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.508288][  T552]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[   22.508459][  T552]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   22.508601][  T552]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   22.508777][  T552]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.508915][  T552]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.509053][  T552]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.509191][  T552]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.509330][  T552]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.509469][  T552]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.509609][  T552]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.509749][  T552]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.509887][  T552]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.510021][  T552]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.510160][  T552]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.510293][  T552]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.510430][  T552]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.510569][  T552]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.510780][  T552]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.510919][  T552]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.511056][  T552]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.511194][  T552]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.511328][  T552]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.511468][  T552]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.511608][  T552]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.511800][  T552]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.511939][  T552]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.512076][  T552]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.512270][  T552]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.512406][  T552]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.512548][  T552]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.512742][  T552]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.512877][  T552]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.513015][  T552]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.513150][  T552]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.513287][  T552]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.513425][  T552]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.513569][  T552]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.513760][  T552]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.513928][  T552]  ? move_addr_to_kernel (net/socket.c:258)
[   22.514066][  T552]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.514202][  T552]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.514337][  T552]  ___sys_sendmsg (net/socket.c:2752)
[   22.514469][  T552]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.514638][  T552]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.514840][  T552]  __sys_sendmsg (net/socket.c:2784)
[   22.514975][  T552]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.515109][  T552]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.515281][  T552]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.515417][  T552]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.515559][  T552]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.515749][  T552]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.515884][  T552]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.516018][  T552]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.516185][  T552] RIP: 0033:0x7fd8310b508e
[   22.516331][  T552] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.516872][  T552] RSP: 002b:00007ffcf6cfb9a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.517076][  T552] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd8310b508e
[   22.517280][  T552] RDX: 0000000000000000 RSI: 00007ffcf6cfba50 RDI: 0000000000000005
[   22.517483][  T552] RBP: 00007ffcf6cfb9b0 R08: 0000000000000000 R09: 0000000000000000
[   22.517746][  T552] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.517949][  T552] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcf6cfc110
| [   22.522662][  T549] ------------[ cut here ]------------
| [   22.522828][  T549] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/549
| [   22.523072][  T549] Modules linked in: ipvtap ipvlan
| [   22.523499][  T549] Tainted: [W]=WARN
[   22.523604][  T549] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.523780][  T549] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.523959][  T549] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.524444][  T549] RSP: 0018:ffa0000001527020 EFLAGS: 00010286
[   22.524625][  T549] RAX: 00000000ffffffa6 RBX: ff11000016522580 RCX: 1ff40000002a4dca
[   22.524832][  T549] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001652263c
[   22.525038][  T549] RBP: ff1100000f2a2000 R08: 1fe2200002ca44c9 R09: ff11000014b50b58
[   22.525242][  T549] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   22.525446][  T549] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.525663][  T549] FS:  00007ff074d92840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   22.525903][  T549] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.526075][  T549] CR2: 0000560b2787c3a8 CR3: 0000000016f5b005 CR4: 0000000000771ef0
[   22.526278][  T549] PKRU: 55555554
[   22.526380][  T549] Call Trace:
[   22.526482][  T549]  <TASK>
[   22.526559][  T549]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.526702][  T549]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.526807][  T549]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.526942][  T549]  __dev_notify_flags (net/core/dev.c:9787)
[   22.527082][  T549]  ? netif_change_name (net/core/dev.c:1495)
[   22.527216][  T549]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.527355][  T549]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.527500][  T549]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.527638][  T549]  ? trace_hrtimer_start (./include/trace/events/timer.h:223 (discriminator 22))
[   22.527783][  T549]  netif_change_flags (net/core/dev.c:9820)
[   22.527922][  T549]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.528067][  T549]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.528202][  T549]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.528338][  T549]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.528479][  T549]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.528621][  T549]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.528762][  T549]  ? reinit_class (kernel/locking/lockdep.c:6290 (discriminator 1))
[   22.528901][  T549]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.529044][  T549]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.529182][  T549]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.529318][  T549]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.529457][  T549]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.529601][  T549]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.529743][  T549]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[   22.529911][  T549]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   22.530048][  T549]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   22.530218][  T549]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.530360][  T549]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.530502][  T549]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.530642][  T549]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.530788][  T549]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.530926][  T549]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.531061][  T549]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.531197][  T549]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.531336][  T549]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.531475][  T549]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.531624][  T549]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.531765][  T549]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.531900][  T549]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.532037][  T549]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.532175][  T549]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.532313][  T549]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.532452][  T549]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.532592][  T549]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.532732][  T549]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.532868][  T549]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.533004][  T549]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.533141][  T549]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.533279][  T549]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.533416][  T549]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.533563][  T549]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.533703][  T549]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.533841][  T549]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.533979][  T549]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.534117][  T549]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.534256][  T549]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.534396][  T549]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.534541][  T549]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.534684][  T549]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.534838][  T549]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.534974][  T549]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.535141][  T549]  ? move_addr_to_kernel (net/socket.c:258)
[   22.535280][  T549]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.535416][  T549]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.535559][  T549]  ___sys_sendmsg (net/socket.c:2752)
[   22.535700][  T549]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.535869][  T549]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.536017][  T549]  __sys_sendmsg (net/socket.c:2784)
[   22.536152][  T549]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.536286][  T549]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.536457][  T549]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.536597][  T549]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.536737][  T549]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.536872][  T549]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.537006][  T549]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.537141][  T549]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.537309][  T549] RIP: 0033:0x7ff074fcc08e
[   22.537451][  T549] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.537939][  T549] RSP: 002b:00007ffeebad6a60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.538142][  T549] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff074fcc08e
[   22.538343][  T549] RDX: 0000000000000000 RSI: 00007ffeebad6b10 RDI: 0000000000000005
[   22.538553][  T549] RBP: 00007ffeebad6a70 R08: 0000000000000000 R09: 0000000000000000
[   22.538758][  T549] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.538961][  T549] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffeebad71d0
| [   22.572519][  T611] ------------[ cut here ]------------
| [   22.572712][  T611] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/611
| [   22.572959][  T611] Modules linked in: ipvtap ipvlan
| [   22.573385][  T611] Tainted: [W]=WARN
[   22.573495][  T611] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.573680][  T611] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.573869][  T611] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.574365][  T611] RSP: 0018:ffa0000001577020 EFLAGS: 00010286
[   22.574542][  T611] RAX: 00000000ffffffa6 RBX: ff1100001654b540 RCX: 1ff40000002aedca
[   22.574751][  T611] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001654b5fc
[   22.574949][  T611] RBP: ff110000133c2000 R08: 1fe2200002ca96c1 R09: ff11000017ae2e58
[   22.575151][  T611] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[   22.575355][  T611] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.575564][  T611] FS:  00007f0bca7d4840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   22.576014][  T611] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.576184][  T611] CR2: 0000000024b32988 CR3: 0000000018155001 CR4: 0000000000771ef0
[   22.576385][  T611] PKRU: 55555554
[   22.576493][  T611] Call Trace:
[   22.576596][  T611]  <TASK>
[   22.576778][  T611]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.576916][  T611]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.577019][  T611]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.577157][  T611]  __dev_notify_flags (net/core/dev.c:9787)
[   22.577296][  T611]  ? netif_change_name (net/core/dev.c:1495)
[   22.577431][  T611]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.577574][  T611]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.577823][  T611]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.577957][  T611]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.578094][  T611]  netif_change_flags (net/core/dev.c:9820)
[   22.578231][  T611]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.578367][  T611]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.578509][  T611]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.578647][  T611]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.578934][  T611]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.579068][  T611]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.579202][  T611]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.579335][  T611]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.579470][  T611]  ? __kernel_text_address (kernel/extable.c:79)
[   22.579613][  T611]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.579864][  T611]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.579999][  T611]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.580135][  T611]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.580269][  T611]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.580406][  T611]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.580543][  T611]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.580757][  T611]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.580897][  T611]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.581031][  T611]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.581168][  T611]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.581307][  T611]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.581445][  T611]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.581590][  T611]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.581801][  T611]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.581937][  T611]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.582073][  T611]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.582208][  T611]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.582343][  T611]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.582481][  T611]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.582622][  T611]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.582849][  T611]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.582985][  T611]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.583123][  T611]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.583262][  T611]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.583397][  T611]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.583534][  T611]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.583737][  T611]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.583874][  T611]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.584007][  T611]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.584140][  T611]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.584274][  T611]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.584411][  T611]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.584585][  T611]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.584776][  T611]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.584909][  T611]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.585039][  T611]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.585168][  T611]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.585299][  T611]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.585431][  T611]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.585567][  T611]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.585758][  T611]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.585890][  T611]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.586019][  T611]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.586180][  T611]  ? move_addr_to_kernel (net/socket.c:258)
[   22.586313][  T611]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.586445][  T611]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.586581][  T611]  ___sys_sendmsg (net/socket.c:2752)
[   22.586782][  T611]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.586944][  T611]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.587085][  T611]  __sys_sendmsg (net/socket.c:2784)
[   22.587214][  T611]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.587341][  T611]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.587507][  T611]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.587636][  T611]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.587839][  T611]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.587969][  T611]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.588099][  T611]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.588227][  T611]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.588387][  T611] RIP: 0033:0x7f0bcaa0e08e
[   22.588528][  T611] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.589081][  T611] RSP: 002b:00007ffeb3261820 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.589275][  T611] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0bcaa0e08e
[   22.589466][  T611] RDX: 0000000000000000 RSI: 00007ffeb32618d0 RDI: 0000000000000005
[   22.589741][  T611] RBP: 00007ffeb3261830 R08: 0000000000000000 R09: 0000000000000000
[   22.589936][  T611] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.590130][  T611] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffeb3261f90
| [   22.707176][  T602] ------------[ cut here ]------------
| [   22.707355][  T602] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/602
| [   22.707601][  T602] Modules linked in: ipvtap ipvlan
| [   22.708031][  T602] Tainted: [W]=WARN
[   22.708136][  T602] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.708307][  T602] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.708486][  T602] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.709040][  T602] RSP: 0018:ffa0000001727020 EFLAGS: 00010286
[   22.709211][  T602] RAX: 00000000ffffffa6 RBX: ff11000016e39380 RCX: 1ff40000002e4dca
[   22.709416][  T602] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016e3943c
[   22.709621][  T602] RBP: ff1100001351a000 R08: 1fe2200002dc7289 R09: ff110000180a5158
[   22.709878][  T602] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[   22.710081][  T602] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.710284][  T602] FS:  00007f058727b840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   22.710523][  T602] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.710749][  T602] CR2: 000000003f897988 CR3: 0000000017395005 CR4: 0000000000771ef0
[   22.710954][  T602] PKRU: 55555554
[   22.711054][  T602] Call Trace:
[   22.711210][  T602]  <TASK>
[   22.711281][  T602]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.711416][  T602]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.711521][  T602]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.711713][  T602]  __dev_notify_flags (net/core/dev.c:9787)
[   22.711851][  T602]  ? netif_change_name (net/core/dev.c:1495)
[   22.711986][  T602]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.712123][  T602]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.712259][  T602]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.712393][  T602]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.712538][  T602]  netif_change_flags (net/core/dev.c:9820)
[   22.712765][  T602]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.712902][  T602]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.713043][  T602]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.713179][  T602]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.713347][  T602]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.713480][  T602]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.713617][  T602]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.713827][  T602]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.713963][  T602]  ? __kernel_text_address (kernel/extable.c:79)
[   22.714100][  T602]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.714236][  T602]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.714372][  T602]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.714513][  T602]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.714649][  T602]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.714870][  T602]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.715005][  T602]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.715140][  T602]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.715278][  T602]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.715415][  T602]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.715557][  T602]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.715772][  T602]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.715909][  T602]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.716047][  T602]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.716185][  T602]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.716322][  T602]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.716452][  T602]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.716587][  T602]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.716810][  T602]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.716949][  T602]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.717082][  T602]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.717216][  T602]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.717350][  T602]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.717485][  T602]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.717625][  T602]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.717838][  T602]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.717969][  T602]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.718099][  T602]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.718229][  T602]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.718357][  T602]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.718494][  T602]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.718625][  T602]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.718814][  T602]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.718999][  T602]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.719144][  T602]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.719286][  T602]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.719428][  T602]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.719580][  T602]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.719788][  T602]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.719928][  T602]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.720070][  T602]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.720213][  T602]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.720354][  T602]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.720500][  T602]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.720741][  T602]  ? move_addr_to_kernel (net/socket.c:258)
[   22.720885][  T602]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.721027][  T602]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.721167][  T602]  ___sys_sendmsg (net/socket.c:2752)
[   22.721308][  T602]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.721482][  T602]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.721642][  T602]  __sys_sendmsg (net/socket.c:2784)
[   22.721838][  T602]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.721981][  T602]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.722157][  T602]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.722299][  T602]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.722438][  T602]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.722584][  T602]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.722782][  T602]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.722921][  T602]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.723098][  T602] RIP: 0033:0x7f05874b508e
[   22.723246][  T602] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.723807][  T602] RSP: 002b:00007ffd2a6ae550 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.724015][  T602] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f05874b508e
[   22.724222][  T602] RDX: 0000000000000000 RSI: 00007ffd2a6ae600 RDI: 0000000000000005
[   22.724428][  T602] RBP: 00007ffd2a6ae560 R08: 0000000000000000 R09: 0000000000000000
[   22.724641][  T602] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.724929][  T602] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd2a6aecc0
| [   22.742384][  T601] ------------[ cut here ]------------
| [   22.742632][  T601] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/601
| [   22.743000][  T601] Modules linked in: ipvtap ipvlan
| [   22.743631][  T601] Tainted: [W]=WARN
[   22.743785][  T601] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.744035][  T601] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.744288][  T601] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.745057][  T601] RSP: 0018:ffa00000016f7020 EFLAGS: 00010286
[   22.745299][  T601] RAX: 00000000ffffffa6 RBX: ff11000016d36040 RCX: 1ff40000002dedca
[   22.745592][  T601] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016d360fc
[   22.745940][  T601] RBP: ff1100000fdb2000 R08: 1fe2200002da6c21 R09: ff1100001784ae58
[   22.746224][  T601] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[   22.746518][  T601] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.746886][  T601] FS:  00007f9566dd3840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   22.747226][  T601] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.747466][  T601] CR2: 000000003cefe988 CR3: 0000000004e24003 CR4: 0000000000771ef0
[   22.747811][  T601] PKRU: 55555554
[   22.747954][  T601] Call Trace:
[   22.748095][  T601]  <TASK>
[   22.748194][  T601]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.748386][  T601]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.748538][  T601]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.748791][  T601]  __dev_notify_flags (net/core/dev.c:9787)
[   22.748987][  T601]  ? netif_change_name (net/core/dev.c:1495)
[   22.749186][  T601]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.749382][  T601]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.749577][  T601]  ? clockevents_program_event (kernel/time/clockevents.c:363)
[   22.749869][  T601]  netif_change_flags (net/core/dev.c:9820)
[   22.750148][  T601]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.750341][  T601]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.750501][  T601]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.750640][  T601]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.750849][  T601]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.750987][  T601]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[   22.751159][  T601]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   22.751299][  T601]  ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:164)
[   22.751440][  T601]  ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:164)
[   22.751582][  T601]  ? lockdep_hardirqs_off (kernel/locking/lockdep.c:4511)
[   22.751775][  T601]  ? irqentry_enter (./include/linux/irq-entry-common.h:439 kernel/entry/common.c:117)
[   22.751913][  T601]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[   22.752082][  T601]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.752220][  T601]  ? osq_unlock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1324 kernel/locking/osq_lock.c:218)
[   22.752356][  T601]  ? mutex_spin_on_owner (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:392)
[   22.752498][  T601]  ? osq_lock (kernel/locking/osq_lock.c:204 (discriminator 2))
[   22.752604][  T601]  ? mutex_spin_on_owner (./arch/x86/include/asm/vdso/processor.h:13 ./arch/x86/include/asm/vdso/processor.h:18 kernel/locking/mutex.c:416)
[   22.752799][  T601]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.752940][  T601]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.753077][  T601]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.753214][  T601]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.753352][  T601]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.753486][  T601]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.753627][  T601]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.753839][  T601]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.753972][  T601]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.754104][  T601]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.754242][  T601]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.754377][  T601]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.754518][  T601]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.754719][  T601]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.754851][  T601]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.754984][  T601]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.755119][  T601]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.755255][  T601]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.755389][  T601]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.755529][  T601]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.755717][  T601]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.755853][  T601]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.755984][  T601]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.756120][  T601]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.756254][  T601]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.756386][  T601]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.756531][  T601]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.756719][  T601]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.756858][  T601]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.756992][  T601]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.757126][  T601]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.757261][  T601]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.757396][  T601]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.757536][  T601]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.757730][  T601]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.757867][  T601]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.758001][  T601]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.758169][  T601]  ? move_addr_to_kernel (net/socket.c:258)
[   22.758304][  T601]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.758439][  T601]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.758580][  T601]  ___sys_sendmsg (net/socket.c:2752)
[   22.758789][  T601]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.759030][  T601]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.759175][  T601]  __sys_sendmsg (net/socket.c:2784)
[   22.759312][  T601]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.759444][  T601]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.759617][  T601]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.759756][  T601]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.759894][  T601]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.760031][  T601]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.760166][  T601]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.760305][  T601]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.760472][  T601] RIP: 0033:0x7f956700d08e
[   22.760617][  T601] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.761098][  T601] RSP: 002b:00007fff47e148b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.761302][  T601] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f956700d08e
[   22.761505][  T601] RDX: 0000000000000000 RSI: 00007fff47e14960 RDI: 0000000000000005
[   22.761708][  T601] RBP: 00007fff47e148c0 R08: 0000000000000000 R09: 0000000000000000
[   22.761910][  T601] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.762112][  T601] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff47e15020
| [   22.771898][  T620] ------------[ cut here ]------------
| [   22.772057][  T620] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/620
| [   22.772303][  T620] Modules linked in: ipvtap ipvlan
| [   22.772738][  T620] Tainted: [W]=WARN
[   22.772841][  T620] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.773008][  T620] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.773185][  T620] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.773675][  T620] RSP: 0018:ffa0000001667020 EFLAGS: 00010286
[   22.773842][  T620] RAX: 00000000ffffffa6 RBX: ff1100000561c900 RCX: 1ff40000002ccdca
[   22.774044][  T620] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000561c9bc
[   22.774240][  T620] RBP: ff110000137d2000 R08: 1fe2200000ac3939 R09: ff110000179e5158
[   22.774444][  T620] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   22.774648][  T620] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.774860][  T620] FS:  00007f9f45f97840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   22.775098][  T620] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.775271][  T620] CR2: 000000003b719988 CR3: 0000000017946006 CR4: 0000000000771ef0
[   22.775475][  T620] PKRU: 55555554
[   22.775581][  T620] Call Trace:
[   22.775688][  T620]  <TASK>
[   22.775759][  T620]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.775896][  T620]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.776002][  T620]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.776142][  T620]  __dev_notify_flags (net/core/dev.c:9787)
[   22.776277][  T620]  ? netif_change_name (net/core/dev.c:1495)
[   22.776411][  T620]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.776556][  T620]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.776695][  T620]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.776829][  T620]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.776968][  T620]  netif_change_flags (net/core/dev.c:9820)
[   22.777103][  T620]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.777237][  T620]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.777373][  T620]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.777513][  T620]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.777687][  T620]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.777822][  T620]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.777958][  T620]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.778091][  T620]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.778226][  T620]  ? __kernel_text_address (kernel/extable.c:79)
[   22.778362][  T620]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.778505][  T620]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.778640][  T620]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.778783][  T620]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.778918][  T620]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.779053][  T620]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.779188][  T620]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.779321][  T620]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.779459][  T620]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.779600][  T620]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.779742][  T620]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.779880][  T620]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.780016][  T620]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.780152][  T620]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.780290][  T620]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.780422][  T620]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.780558][  T620]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.780695][  T620]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.780828][  T620]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.780966][  T620]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.781100][  T620]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.781234][  T620]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.781369][  T620]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.781506][  T620]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.781641][  T620]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.781778][  T620]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.781914][  T620]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.782046][  T620]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.782181][  T620]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.782312][  T620]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.782446][  T620]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.782584][  T620]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.782724][  T620]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.782863][  T620]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.782997][  T620]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.783132][  T620]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.783268][  T620]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.783405][  T620]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.783543][  T620]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.783683][  T620]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.783819][  T620]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.783958][  T620]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.784097][  T620]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.784234][  T620]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.784401][  T620]  ? move_addr_to_kernel (net/socket.c:258)
[   22.784543][  T620]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.784682][  T620]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.784819][  T620]  ___sys_sendmsg (net/socket.c:2752)
[   22.784953][  T620]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.785118][  T620]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.785264][  T620]  __sys_sendmsg (net/socket.c:2784)
[   22.785401][  T620]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.785540][  T620]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.785716][  T620]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.785854][  T620]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.785995][  T620]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.786128][  T620]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.786264][  T620]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.786401][  T620]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.786573][  T620] RIP: 0033:0x7f9f461d108e
[   22.786725][  T620] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.787218][  T620] RSP: 002b:00007ffceb43e8e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.787424][  T620] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9f461d108e
[   22.787630][  T620] RDX: 0000000000000000 RSI: 00007ffceb43e990 RDI: 0000000000000005
[   22.787837][  T620] RBP: 00007ffceb43e8f0 R08: 0000000000000000 R09: 0000000000000000
[   22.788043][  T620] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.788243][  T620] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffceb43f050
| [   22.817537][  T627] ------------[ cut here ]------------
| [   22.817713][  T627] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/627
| [   22.817955][  T627] Modules linked in: ipvtap ipvlan
| [   22.818380][  T627] Tainted: [W]=WARN
[   22.818483][  T627] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.818666][  T627] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.818850][  T627] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.819338][  T627] RSP: 0018:ffa00000016d7020 EFLAGS: 00010286
[   22.819527][  T627] RAX: 00000000ffffffa6 RBX: ff11000016e20900 RCX: 1ff40000002dadca
[   22.819741][  T627] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016e209bc
[   22.819938][  T627] RBP: ff11000012dba000 R08: 1fe2200002dc4139 R09: ff11000018250b58
[   22.820137][  T627] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[   22.820340][  T627] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.820549][  T627] FS:  00007ff449439840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   22.820792][  T627] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.820964][  T627] CR2: 0000000007928988 CR3: 0000000014060001 CR4: 0000000000771ef0
[   22.821171][  T627] PKRU: 55555554
[   22.821273][  T627] Call Trace:
[   22.821374][  T627]  <TASK>
[   22.821445][  T627]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.821590][  T627]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.821767][  T627]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.821901][  T627]  __dev_notify_flags (net/core/dev.c:9787)
[   22.822036][  T627]  ? netif_change_name (net/core/dev.c:1495)
[   22.822171][  T627]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.822306][  T627]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.822441][  T627]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.822584][  T627]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.822775][  T627]  netif_change_flags (net/core/dev.c:9820)
[   22.822909][  T627]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.823043][  T627]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.823181][  T627]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.823314][  T627]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.823480][  T627]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.823620][  T627]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.823848][  T627]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.823981][  T627]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.824118][  T627]  ? __kernel_text_address (kernel/extable.c:79)
[   22.824252][  T627]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.824387][  T627]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.824525][  T627]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.824737][  T627]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.824870][  T627]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.825003][  T627]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.825137][  T627]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.825271][  T627]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.825409][  T627]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.825553][  T627]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.825757][  T627]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.825893][  T627]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.826029][  T627]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.826164][  T627]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.826301][  T627]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.826433][  T627]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.826573][  T627]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.826783][  T627]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.826916][  T627]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.827055][  T627]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.827186][  T627]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.827320][  T627]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.827455][  T627]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.827594][  T627]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.827792][  T627]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.827927][  T627]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.828060][  T627]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.828192][  T627]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.828328][  T627]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.828462][  T627]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.828604][  T627]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.828797][  T627]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.828934][  T627]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.829072][  T627]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.829209][  T627]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.829345][  T627]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.829480][  T627]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.829616][  T627]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.829817][  T627]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.829952][  T627]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.830085][  T627]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.830222][  T627]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.830359][  T627]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.830496][  T627]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.830715][  T627]  ? move_addr_to_kernel (net/socket.c:258)
[   22.830850][  T627]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.830984][  T627]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.831119][  T627]  ___sys_sendmsg (net/socket.c:2752)
[   22.831251][  T627]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.831418][  T627]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.831570][  T627]  __sys_sendmsg (net/socket.c:2784)
[   22.831759][  T627]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.831892][  T627]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.832059][  T627]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.832191][  T627]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.832325][  T627]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.832462][  T627]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.832600][  T627]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.832801][  T627]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.832965][  T627] RIP: 0033:0x7ff44967308e
[   22.833103][  T627] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.833581][  T627] RSP: 002b:00007ffcd6b59470 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.833859][  T627] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff44967308e
[   22.834056][  T627] RDX: 0000000000000000 RSI: 00007ffcd6b59520 RDI: 0000000000000005
[   22.834254][  T627] RBP: 00007ffcd6b59480 R08: 0000000000000000 R09: 0000000000000000
[   22.834455][  T627] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.834714][  T627] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcd6b59be0
| [   22.840459][  T622] ------------[ cut here ]------------
| [   22.840613][  T622] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/622
| [   22.840953][  T622] Modules linked in: ipvtap ipvlan
| [   22.841376][  T622] Tainted: [W]=WARN
[   22.841478][  T622] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.841857][  T622] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.842149][  T622] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.842640][  T622] RSP: 0018:ffa0000001317020 EFLAGS: 00010286
[   22.842927][  T622] RAX: 00000000ffffffa6 RBX: ff11000016e21a80 RCX: 1ff4000000262dca
[   22.843129][  T622] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016e21b3c
[   22.843329][  T622] RBP: ff11000013532000 R08: 1fe2200002dc4369 R09: ff110000179f2e58
[   22.843539][  T622] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   22.843856][  T622] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.844054][  T622] FS:  00007f9d1d6d5840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   22.844290][  T622] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.844461][  T622] CR2: 00007f037475d310 CR3: 00000000172e7002 CR4: 0000000000771ef0
[   22.844789][  T622] PKRU: 55555554
[   22.844891][  T622] Call Trace:
[   22.844991][  T622]  <TASK>
[   22.845063][  T622]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.845204][  T622]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.845308][  T622]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.845443][  T622]  __dev_notify_flags (net/core/dev.c:9787)
[   22.845584][  T622]  ? netif_change_name (net/core/dev.c:1495)
[   22.845827][  T622]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.845960][  T622]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.846098][  T622]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.846235][  T622]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.846374][  T622]  netif_change_flags (net/core/dev.c:9820)
[   22.846512][  T622]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.846648][  T622]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.846896][  T622]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.847033][  T622]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.847204][  T622]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.847338][  T622]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.847473][  T622]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.847615][  T622]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.847867][  T622]  ? __kernel_text_address (kernel/extable.c:79)
[   22.848002][  T622]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.848139][  T622]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.848272][  T622]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.848411][  T622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.848551][  T622]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.848803][  T622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.848940][  T622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.849074][  T622]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.849210][  T622]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.849350][  T622]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.849487][  T622]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.849629][  T622]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.849874][  T622]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.850016][  T622]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.850153][  T622]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.850287][  T622]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.850425][  T622]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.850566][  T622]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.850810][  T622]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.850950][  T622]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.851085][  T622]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.851218][  T622]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.851354][  T622]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.851493][  T622]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.851632][  T622]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.851877][  T622]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.852014][  T622]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.852147][  T622]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.852280][  T622]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.852416][  T622]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.852557][  T622]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.852772][  T622]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.852908][  T622]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.853046][  T622]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.853181][  T622]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.853319][  T622]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.853457][  T622]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.853683][  T622]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.853819][  T622]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.853956][  T622]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.854093][  T622]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.854230][  T622]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.854366][  T622]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.854507][  T622]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.854771][  T622]  ? move_addr_to_kernel (net/socket.c:258)
[   22.854908][  T622]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.855048][  T622]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.855184][  T622]  ___sys_sendmsg (net/socket.c:2752)
[   22.855318][  T622]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.855485][  T622]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.855639][  T622]  __sys_sendmsg (net/socket.c:2784)
[   22.855865][  T622]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.856001][  T622]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.856172][  T622]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.856407][  T622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.856549][  T622]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.856775][  T622]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.856916][  T622]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.857052][  T622]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.857218][  T622] RIP: 0033:0x7f9d1d90f08e
[   22.857359][  T622] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.857867][  T622] RSP: 002b:00007ffe8a985bf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.858075][  T622] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9d1d90f08e
[   22.858275][  T622] RDX: 0000000000000000 RSI: 00007ffe8a985ca0 RDI: 0000000000000005
[   22.858475][  T622] RBP: 00007ffe8a985c00 R08: 0000000000000000 R09: 0000000000000000
[   22.858684][  T622] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.858887][  T622] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe8a986360
| [   22.864051][  T637] ------------[ cut here ]------------
| [   22.864208][  T637] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/637
| [   22.864447][  T637] Modules linked in: ipvtap ipvlan
| [   22.865210][  T637] Tainted: [W]=WARN
[   22.865315][  T637] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.865489][  T637] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.865679][  T637] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.866153][  T637] RSP: 0018:ffa0000001607020 EFLAGS: 00010286
[   22.866321][  T637] RAX: 00000000ffffffa6 RBX: ff11000012978900 RCX: 1ff40000002c0dca
[   22.866527][  T637] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000129789bc
[   22.866730][  T637] RBP: ff11000013ada000 R08: 1fe220000252f139 R09: ff11000012e0d158
[   22.866928][  T637] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[   22.867125][  T637] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.867328][  T637] FS:  00007fcd50a94840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   22.867568][  T637] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.867745][  T637] CR2: 000000003c3a7988 CR3: 0000000017001001 CR4: 0000000000771ef0
[   22.867946][  T637] PKRU: 55555554
[   22.868046][  T637] Call Trace:
[   22.868146][  T637]  <TASK>
[   22.868216][  T637]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.868354][  T637]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.868459][  T637]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.868596][  T637]  __dev_notify_flags (net/core/dev.c:9787)
[   22.868734][  T637]  ? netif_change_name (net/core/dev.c:1495)
[   22.868868][  T637]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.869003][  T637]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.869138][  T637]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.869272][  T637]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.869409][  T637]  netif_change_flags (net/core/dev.c:9820)
[   22.869548][  T637]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.869690][  T637]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.869826][  T637]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.869966][  T637]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.870134][  T637]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.870272][  T637]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.870406][  T637]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.870545][  T637]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.870685][  T637]  ? __kernel_text_address (kernel/extable.c:79)
[   22.870821][  T637]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.870956][  T637]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.871089][  T637]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.871223][  T637]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.871357][  T637]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.871496][  T637]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.871631][  T637]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.871773][  T637]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.871908][  T637]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.872042][  T637]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.872180][  T637]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.872318][  T637]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.872456][  T637]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.872600][  T637]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.872742][  T637]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.872877][  T637]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.873012][  T637]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.873146][  T637]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.873281][  T637]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.873417][  T637]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.873554][  T637]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.873693][  T637]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.873831][  T637]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.873970][  T637]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.874105][  T637]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.874241][  T637]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.874374][  T637]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.874511][  T637]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.874648][  T637]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.874788][  T637]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.874923][  T637]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.875056][  T637]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.875191][  T637]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.875329][  T637]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.875464][  T637]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.875608][  T637]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.875753][  T637]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.875887][  T637]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.876021][  T637]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.876156][  T637]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.876292][  T637]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.876430][  T637]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.876573][  T637]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.876712][  T637]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.876878][  T637]  ? move_addr_to_kernel (net/socket.c:258)
[   22.877012][  T637]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.877147][  T637]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.877285][  T637]  ___sys_sendmsg (net/socket.c:2752)
[   22.877419][  T637]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.877593][  T637]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.877745][  T637]  __sys_sendmsg (net/socket.c:2784)
[   22.877881][  T637]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.878015][  T637]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.878184][  T637]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.878318][  T637]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.878452][  T637]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.878591][  T637]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.878734][  T637]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.878869][  T637]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.879038][  T637] RIP: 0033:0x7fcd50cce08e
[   22.879178][  T637] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.879666][  T637] RSP: 002b:00007fffb0eab390 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.879869][  T637] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fcd50cce08e
[   22.880067][  T637] RDX: 0000000000000000 RSI: 00007fffb0eab440 RDI: 0000000000000005
[   22.880268][  T637] RBP: 00007fffb0eab3a0 R08: 0000000000000000 R09: 0000000000000000
[   22.880469][  T637] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.880678][  T637] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffb0eabb00
| [   22.884446][  T649] ------------[ cut here ]------------
| [   22.884602][  T649] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/649
| [   22.885757][  T649] Modules linked in: ipvtap ipvlan
| [   22.886182][  T649] Tainted: [W]=WARN
[   22.886286][  T649] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.886574][  T649] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.886876][  T649] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.887367][  T649] RSP: 0018:ffa00000017d7020 EFLAGS: 00010286
[   22.887543][  T649] RAX: 00000000ffffffa6 RBX: ff11000006218740 RCX: 1ff40000002fadca
[   22.887847][  T649] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000062187fc
[   22.888050][  T649] RBP: ff11000013652000 R08: 1fe2200000c43101 R09: ff11000018305158
[   22.888252][  T649] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   22.888453][  T649] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.888776][  T649] FS:  00007f16908ea840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   22.889015][  T649] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.889186][  T649] CR2: 00000000330ab988 CR3: 0000000015bf5005 CR4: 0000000000771ef0
[   22.889392][  T649] PKRU: 55555554
[   22.889498][  T649] Call Trace:
[   22.889600][  T649]  <TASK>
[   22.889769][  T649]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.889908][  T649]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.890013][  T649]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.890147][  T649]  __dev_notify_flags (net/core/dev.c:9787)
[   22.890285][  T649]  ? netif_change_name (net/core/dev.c:1495)
[   22.890426][  T649]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.890567][  T649]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.890758][  T649]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.890895][  T649]  ? trace_hrtimer_start (./include/trace/events/timer.h:223 (discriminator 22))
[   22.891033][  T649]  netif_change_flags (net/core/dev.c:9820)
[   22.891169][  T649]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.891311][  T649]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.891451][  T649]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.891595][  T649]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.891807][  T649]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.891945][  T649]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.892082][  T649]  ? reinit_class (kernel/locking/lockdep.c:6290 (discriminator 1))
[   22.892220][  T649]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.892354][  T649]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.892499][  T649]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.892636][  T649]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.892864][  T649]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.893003][  T649]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.893139][  T649]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[   22.893307][  T649]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   22.893442][  T649]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   22.893614][  T649]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.893836][  T649]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.893976][  T649]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.894117][  T649]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.894258][  T649]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.894398][  T649]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.894539][  T649]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.894744][  T649]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.894887][  T649]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.895024][  T649]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.895162][  T649]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.895297][  T649]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.895431][  T649]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.895576][  T649]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.895785][  T649]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.895922][  T649]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.896059][  T649]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.896197][  T649]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.896336][  T649]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.896475][  T649]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.896613][  T649]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.896839][  T649]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.896978][  T649]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.897113][  T649]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.897254][  T649]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.897390][  T649]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.897533][  T649]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.897757][  T649]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.897894][  T649]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.898029][  T649]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.898165][  T649]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.898306][  T649]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.898521][  T649]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.898727][  T649]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.898864][  T649]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.899032][  T649]  ? move_addr_to_kernel (net/socket.c:258)
[   22.899170][  T649]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.899306][  T649]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.899443][  T649]  ___sys_sendmsg (net/socket.c:2752)
[   22.899586][  T649]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.899855][  T649]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.900008][  T649]  __sys_sendmsg (net/socket.c:2784)
[   22.900149][  T649]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.900289][  T649]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.900465][  T649]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.900614][  T649]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.900833][  T649]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.900971][  T649]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.901109][  T649]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.901244][  T649]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.901417][  T649] RIP: 0033:0x7f1690b2408e
[   22.901566][  T649] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.902143][  T649] RSP: 002b:00007fff5fce0ac0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.902350][  T649] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f1690b2408e
[   22.902558][  T649] RDX: 0000000000000000 RSI: 00007fff5fce0b70 RDI: 0000000000000005
[   22.902866][  T649] RBP: 00007fff5fce0ad0 R08: 0000000000000000 R09: 0000000000000000
[   22.903073][  T649] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.903277][  T649] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff5fce1230
| [   22.913496][  T639] ------------[ cut here ]------------
| [   22.913699][  T639] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/639
| [   22.913980][  T639] Modules linked in: ipvtap ipvlan
| [   22.914504][  T639] Tainted: [W]=WARN
[   22.914668][  T639] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.914916][  T639] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.915155][  T639] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.915702][  T639] RSP: 0018:ffa00000017a7020 EFLAGS: 00010286
[   22.915920][  T639] RAX: 00000000ffffffa6 RBX: ff11000017102900 RCX: 1ff40000002f4dca
[   22.916177][  T639] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000171029bc
[   22.916429][  T639] RBP: ff11000013c0a000 R08: 1fe2200002e20539 R09: ff110000182f2e58
[   22.916698][  T639] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   22.916945][  T639] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.917202][  T639] FS:  00007f550ebb5840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   22.917486][  T639] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.917722][  T639] CR2: 00000000077e6988 CR3: 000000001708f006 CR4: 0000000000771ef0
[   22.917970][  T639] PKRU: 55555554
[   22.918117][  T639] Call Trace:
[   22.918264][  T639]  <TASK>
[   22.918384][  T639]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.918577][  T639]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.918744][  T639]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.918928][  T639]  __dev_notify_flags (net/core/dev.c:9787)
[   22.919114][  T639]  ? netif_change_name (net/core/dev.c:1495)
[   22.919296][  T639]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.919485][  T639]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.919690][  T639]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.919880][  T639]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.920069][  T639]  netif_change_flags (net/core/dev.c:9820)
[   22.920256][  T639]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.920441][  T639]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.920637][  T639]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.920837][  T639]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.921057][  T639]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.921241][  T639]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.921424][  T639]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.921615][  T639]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.921828][  T639]  ? __kernel_text_address (kernel/extable.c:79)
[   22.922014][  T639]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.922197][  T639]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.922383][  T639]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.922574][  T639]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.922840][  T639]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.923086][  T639]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.923324][  T639]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.923597][  T639]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.923899][  T639]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.924147][  T639]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.924330][  T639]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.924523][  T639]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.924725][  T639]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.924913][  T639]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.925099][  T639]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.925285][  T639]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.925469][  T639]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.925672][  T639]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.925859][  T639]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.926045][  T639]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.926234][  T639]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.926419][  T639]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.926609][  T639]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.926812][  T639]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.926998][  T639]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.927185][  T639]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.927370][  T639]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.927562][  T639]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.927776][  T639]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.927962][  T639]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.928151][  T639]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.928336][  T639]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.928530][  T639]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.928733][  T639]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.928920][  T639]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.929109][  T639]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.929294][  T639]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.929481][  T639]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.929690][  T639]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.929878][  T639]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.930066][  T639]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.930251][  T639]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.930437][  T639]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.930629][  T639]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.930856][  T639]  ? move_addr_to_kernel (net/socket.c:258)
[   22.931072][  T639]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.931258][  T639]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.931477][  T639]  ___sys_sendmsg (net/socket.c:2752)
[   22.931681][  T639]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.931928][  T639]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.932123][  T639]  __sys_sendmsg (net/socket.c:2784)
[   22.932313][  T639]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.932506][  T639]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.932739][  T639]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.932925][  T639]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.933111][  T639]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.933300][  T639]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.933501][  T639]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.933699][  T639]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.933914][  T639] RIP: 0033:0x7f550edef08e
[   22.934104][  T639] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.934641][  T639] RSP: 002b:00007ffd05fdb050 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.934908][  T639] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f550edef08e
[   22.935161][  T639] RDX: 0000000000000000 RSI: 00007ffd05fdb100 RDI: 0000000000000005
[   22.935413][  T639] RBP: 00007ffd05fdb060 R08: 0000000000000000 R09: 0000000000000000
[   22.935686][  T639] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   22.935935][  T639] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd05fdb7c0
| [   22.950807][  T657] ------------[ cut here ]------------
| [   22.951011][  T657] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/657
| [   22.951295][  T657] Modules linked in: ipvtap ipvlan
| [   22.951827][  T657] Tainted: [W]=WARN
[   22.951978][  T657] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.952225][  T657] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.952460][  T657] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.953035][  T657] RSP: 0018:ffa00000017e7020 EFLAGS: 00010286
[   22.953251][  T657] RAX: 00000000ffffffa6 RBX: ff110000173e8200 RCX: 1ff40000002fcdca
[   22.953509][  T657] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000173e82bc
[   22.953770][  T657] RBP: ff110000135d2000 R08: 1fe2200002e7d059 R09: ff11000016415158
[   22.954019][  T657] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   22.954266][  T657] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.954522][  T657] FS:  00007f53ad3d7840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   22.954839][  T657] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.955055][  T657] CR2: 00000000286c6988 CR3: 00000000121b6001 CR4: 0000000000771ef0
[   22.955311][  T657] PKRU: 55555554
[   22.955460][  T657] Call Trace:
[   22.955612][  T657]  <TASK>
[   22.955746][  T657]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.955933][  T657]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.956089][  T657]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.956275][  T657]  __dev_notify_flags (net/core/dev.c:9787)
[   22.956463][  T657]  ? netif_change_name (net/core/dev.c:1495)
[   22.956669][  T657]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.956855][  T657]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.957037][  T657]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.957224][  T657]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.957413][  T657]  netif_change_flags (net/core/dev.c:9820)
[   22.957613][  T657]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.957806][  T657]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.957992][  T657]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.958176][  T657]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.958392][  T657]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.958584][  T657]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.958777][  T657]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.958964][  T657]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.959149][  T657]  ? __kernel_text_address (kernel/extable.c:79)
[   22.959332][  T657]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.959524][  T657]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.959719][  T657]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.959909][  T657]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.960097][  T657]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.960280][  T657]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.960470][  T657]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.960677][  T657]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.960862][  T657]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.961045][  T657]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.961231][  T657]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.961418][  T657]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.961610][  T657]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.961815][  T657]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.962001][  T657]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.962183][  T657]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.962367][  T657]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.962558][  T657]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.962753][  T657]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.962939][  T657]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.963124][  T657]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.963307][  T657]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.963488][  T657]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.963698][  T657]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.963884][  T657]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.964069][  T657]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.964250][  T657]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.964434][  T657]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.964632][  T657]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.964825][  T657]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.965011][  T657]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.965192][  T657]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.965376][  T657]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.965574][  T657]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.965771][  T657]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.965965][  T657]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.966154][  T657]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.966340][  T657]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.966538][  T657]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.966739][  T657]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.966926][  T657]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.967112][  T657]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.967299][  T657]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.967482][  T657]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.967719][  T657]  ? move_addr_to_kernel (net/socket.c:258)
[   22.967904][  T657]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.968089][  T657]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.968304][  T657]  ___sys_sendmsg (net/socket.c:2752)
[   22.968486][  T657]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.968724][  T657]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.968922][  T657]  __sys_sendmsg (net/socket.c:2784)
[   22.969108][  T657]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.969290][  T657]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.969545][  T657]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.969747][  T657]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.969940][  T657]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.970127][  T657]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.970313][  T657]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.970507][  T657]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.970742][  T657] RIP: 0033:0x7f53ad61108e
[   22.970950][  T657] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.971507][  T657] RSP: 002b:00007ffe3a2f1cb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.971771][  T657] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f53ad61108e
[   22.972019][  T657] RDX: 0000000000000000 RSI: 00007ffe3a2f1d60 RDI: 0000000000000005
[   22.972269][  T657] RBP: 00007ffe3a2f1cc0 R08: 0000000000000000 R09: 0000000000000000
[   22.972532][  T657] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dace
[   22.972797][  T657] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe3a2f2420
| [   22.992166][  T669] ------------[ cut here ]------------
| [   22.992325][  T669] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/669
| [   22.992567][  T669] Modules linked in: ipvtap ipvlan
| [   22.993905][  T669] Tainted: [W]=WARN
[   22.994010][  T669] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.994183][  T669] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.994363][  T669] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.994916][  T669] RSP: 0018:ffa0000001467020 EFLAGS: 00010286
[   22.995091][  T669] RAX: 00000000ffffffa6 RBX: ff110000173f8900 RCX: 1ff400000028cdca
[   22.995293][  T669] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000173f89bc
[   22.995502][  T669] RBP: ff11000001eea000 R08: 1fe2200002e7f139 R09: ff1100000903d158
[   22.995762][  T669] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   22.995969][  T669] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.996206][  T669] FS:  00007f21380fe840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   22.996446][  T669] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.996619][  T669] CR2: 0000000029915988 CR3: 0000000017a9c006 CR4: 0000000000771ef0
[   22.996827][  T669] PKRU: 55555554
[   22.996929][  T669] Call Trace:
[   22.997029][  T669]  <TASK>
[   22.997100][  T669]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.997235][  T669]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.997342][  T669]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.997481][  T669]  __dev_notify_flags (net/core/dev.c:9787)
[   22.997620][  T669]  ? netif_change_name (net/core/dev.c:1495)
[   22.997765][  T669]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.997902][  T669]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.998039][  T669]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.998176][  T669]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.998319][  T669]  netif_change_flags (net/core/dev.c:9820)
[   22.998455][  T669]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.998595][  T669]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.998734][  T669]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.998869][  T669]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.999039][  T669]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.999175][  T669]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.999309][  T669]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.999446][  T669]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.999589][  T669]  ? __kernel_text_address (kernel/extable.c:79)
[   22.999730][  T669]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.999866][  T669]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.999999][  T669]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.000135][  T669]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.000271][  T669]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.000407][  T669]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.000550][  T669]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.000691][  T669]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   23.000827][  T669]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   23.000963][  T669]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   23.001100][  T669]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.001235][  T669]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   23.001376][  T669]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   23.001521][  T669]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   23.001665][  T669]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.001801][  T669]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.001947][  T669]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.002084][  T669]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.002219][  T669]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.002358][  T669]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.002489][  T669]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.002627][  T669]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.002769][  T669]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.002907][  T669]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.003050][  T669]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   23.003186][  T669]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.003322][  T669]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.003457][  T669]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.003598][  T669]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.003740][  T669]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.003877][  T669]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   23.004012][  T669]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.004153][  T669]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.004292][  T669]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.004427][  T669]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.004568][  T669]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.004709][  T669]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.004845][  T669]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.004980][  T669]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   23.005117][  T669]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   23.005253][  T669]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   23.005389][  T669]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   23.005530][  T669]  ? copy_msghdr_from_user (net/socket.c:2635)
[   23.005736][  T669]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   23.005909][  T669]  ? move_addr_to_kernel (net/socket.c:258)
[   23.006046][  T669]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.006182][  T669]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.006319][  T669]  ___sys_sendmsg (net/socket.c:2752)
[   23.006454][  T669]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   23.006627][  T669]  ? copy_msghdr_from_user (net/socket.c:2603)
[   23.006777][  T669]  __sys_sendmsg (net/socket.c:2784)
[   23.006912][  T669]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   23.007050][  T669]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   23.007220][  T669]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.007360][  T669]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.007496][  T669]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.007630][  T669]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.007768][  T669]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.007903][  T669]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.008071][  T669] RIP: 0033:0x7f213833808e
[   23.008213][  T669] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.008699][  T669] RSP: 002b:00007ffdd3de72c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.008904][  T669] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f213833808e
[   23.009104][  T669] RDX: 0000000000000000 RSI: 00007ffdd3de7370 RDI: 0000000000000005
[   23.009308][  T669] RBP: 00007ffdd3de72d0 R08: 0000000000000000 R09: 0000000000000000
[   23.009513][  T669] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dace
[   23.009720][  T669] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdd3de7a30
| [   23.020839][  T666] ------------[ cut here ]------------
| [   23.021035][  T666] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/666
| [   23.021272][  T666] Modules linked in: ipvtap ipvlan
| [   23.021707][  T666] Tainted: [W]=WARN
[   23.021814][  T666] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.021988][  T666] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.022166][  T666] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.022668][  T666] RSP: 0018:ffa00000015e7020 EFLAGS: 00010286
[   23.022842][  T666] RAX: 00000000ffffffa6 RBX: ff1100001714c3c0 RCX: 1ff40000002bcdca
[   23.023047][  T666] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001714c47c
[   23.023252][  T666] RBP: ff11000013d4a000 R08: 1fe2200002e29891 R09: ff1100000f712e58
[   23.023453][  T666] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   23.023666][  T666] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   23.023876][  T666] FS:  00007f779236d840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   23.024116][  T666] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.024289][  T666] CR2: 00000000043c2988 CR3: 000000000f084006 CR4: 0000000000771ef0
[   23.024498][  T666] PKRU: 55555554
[   23.024601][  T666] Call Trace:
[   23.024709][  T666]  <TASK>
[   23.024780][  T666]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.024919][  T666]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.025024][  T666]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.025160][  T666]  __dev_notify_flags (net/core/dev.c:9787)
[   23.025298][  T666]  ? netif_change_name (net/core/dev.c:1495)
[   23.025433][  T666]  ? __dev_change_flags (net/core/dev.c:9752)
[   23.025575][  T666]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   23.025720][  T666]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.025858][  T666]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   23.025998][  T666]  netif_change_flags (net/core/dev.c:9820)
[   23.026136][  T666]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   23.026272][  T666]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   23.026412][  T666]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   23.026551][  T666]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   23.026729][  T666]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.026866][  T666]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.027007][  T666]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   23.027147][  T666]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.027284][  T666]  ? __kernel_text_address (kernel/extable.c:79)
[   23.027423][  T666]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.027568][  T666]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.027709][  T666]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.027848][  T666]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.027983][  T666]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.028118][  T666]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.028255][  T666]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.028393][  T666]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   23.028538][  T666]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   23.028681][  T666]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   23.028817][  T666]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.028960][  T666]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   23.029101][  T666]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   23.029242][  T666]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   23.029381][  T666]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.029523][  T666]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.029666][  T666]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.029805][  T666]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.029940][  T666]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.030078][  T666]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.030213][  T666]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.030350][  T666]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.030486][  T666]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.030632][  T666]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.030777][  T666]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   23.030912][  T666]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.031050][  T666]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.031185][  T666]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.031324][  T666]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.031460][  T666]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.031603][  T666]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   23.031746][  T666]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.031883][  T666]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.032027][  T666]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.032163][  T666]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.032301][  T666]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.032439][  T666]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.032582][  T666]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.032726][  T666]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   23.032865][  T666]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   23.033006][  T666]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   23.033148][  T666]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   23.033286][  T666]  ? copy_msghdr_from_user (net/socket.c:2635)
[   23.033423][  T666]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   23.033598][  T666]  ? move_addr_to_kernel (net/socket.c:258)
[   23.033740][  T666]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.033878][  T666]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.034018][  T666]  ___sys_sendmsg (net/socket.c:2752)
[   23.034156][  T666]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   23.034329][  T666]  ? copy_msghdr_from_user (net/socket.c:2603)
[   23.034480][  T666]  __sys_sendmsg (net/socket.c:2784)
[   23.034625][  T666]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   23.034765][  T666]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   23.034935][  T666]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.035068][  T666]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.035214][  T666]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.035347][  T666]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.035480][  T666]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.035619][  T666]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.035788][  T666] RIP: 0033:0x7f77925a708e
[   23.035927][  T666] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.036405][  T666] RSP: 002b:00007fff59748c10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.036609][  T666] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f77925a708e
[   23.036813][  T666] RDX: 0000000000000000 RSI: 00007fff59748cc0 RDI: 0000000000000005
[   23.037014][  T666] RBP: 00007fff59748c20 R08: 0000000000000000 R09: 0000000000000000
[   23.037212][  T666] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dace
[   23.037411][  T666] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff59749380
| [   23.050372][  T680] ------------[ cut here ]------------
| [   23.050583][  T680] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/680
| [   23.050998][  T680] Modules linked in: ipvtap ipvlan
| [   23.051582][  T680] Tainted: [W]=WARN
[   23.051792][  T680] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.052111][  T680] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.052359][  T680] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.053128][  T680] RSP: 0018:ffa0000001837020 EFLAGS: 00010286
[   23.053366][  T680] RAX: 00000000ffffffa6 RBX: ff1100001714da80 RCX: 1ff4000000306dca
[   23.053737][  T680] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001714db3c
[   23.054017][  T680] RBP: ff11000012dc2000 R08: 1fe2200002e29b69 R09: ff11000015ffae58
[   23.054299][  T680] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   23.054588][  T680] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   23.054967][  T680] FS:  00007f4f04786840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   23.055279][  T680] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.055521][  T680] CR2: 000000002b601988 CR3: 0000000017294004 CR4: 0000000000771ef0
[   23.055876][  T680] PKRU: 55555554
[   23.056019][  T680] Call Trace:
[   23.056167][  T680]  <TASK>
[   23.056269][  T680]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.056462][  T680]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.056613][  T680]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.056886][  T680]  __dev_notify_flags (net/core/dev.c:9787)
[   23.057075][  T680]  ? netif_change_name (net/core/dev.c:1495)
[   23.057263][  T680]  ? __dev_change_flags (net/core/dev.c:9752)
[   23.057454][  T680]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   23.057843][  T680]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.058033][  T680]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   23.058223][  T680]  netif_change_flags (net/core/dev.c:9820)
[   23.058414][  T680]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   23.058608][  T680]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   23.058905][  T680]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   23.059094][  T680]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   23.059330][  T680]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.059636][  T680]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.059942][  T680]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   23.060136][  T680]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.060329][  T680]  ? __kernel_text_address (kernel/extable.c:79)
[   23.060529][  T680]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.060825][  T680]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.061014][  T680]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.061195][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.061386][  T680]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.061581][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.061872][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.062064][  T680]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   23.062255][  T680]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   23.062447][  T680]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   23.062641][  T680]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.062918][  T680]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   23.063113][  T680]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   23.063309][  T680]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   23.063501][  T680]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.063744][  T680]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.063936][  T680]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.064125][  T680]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.064314][  T680]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.064503][  T680]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.064694][  T680]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.064886][  T680]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.065081][  T680]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.065275][  T680]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.065457][  T680]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   23.065646][  T680]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.065844][  T680]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.066034][  T680]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.066233][  T680]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.066417][  T680]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.066630][  T680]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   23.066822][  T680]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.067013][  T680]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.067199][  T680]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.067389][  T680]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.067587][  T680]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.067785][  T680]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.067976][  T680]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.068173][  T680]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   23.068363][  T680]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   23.068564][  T680]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   23.068759][  T680]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   23.068950][  T680]  ? copy_msghdr_from_user (net/socket.c:2635)
[   23.069134][  T680]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   23.069373][  T680]  ? move_addr_to_kernel (net/socket.c:258)
[   23.069569][  T680]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.069761][  T680]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.069955][  T680]  ___sys_sendmsg (net/socket.c:2752)
[   23.070138][  T680]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   23.070371][  T680]  ? copy_msghdr_from_user (net/socket.c:2603)
[   23.070581][  T680]  __sys_sendmsg (net/socket.c:2784)
[   23.070777][  T680]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   23.070965][  T680]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   23.071207][  T680]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.071396][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.071591][  T680]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.071787][  T680]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.071978][  T680]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.072163][  T680]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.072399][  T680] RIP: 0033:0x7f4f049c008e
[   23.072596][  T680] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.073278][  T680] RSP: 002b:00007ffc82e9d4a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.073565][  T680] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4f049c008e
[   23.073850][  T680] RDX: 0000000000000000 RSI: 00007ffc82e9d550 RDI: 0000000000000005
[   23.074140][  T680] RBP: 00007ffc82e9d4b0 R08: 0000000000000000 R09: 0000000000000000
[   23.074426][  T680] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dace
[   23.074715][  T680] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc82e9dc10
| [   23.079166][  T674] ------------[ cut here ]------------
| [   23.079368][  T674] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/674
| [   23.079703][  T674] Modules linked in: ipvtap ipvlan
| [   23.080269][  T674] Tainted: [W]=WARN
[   23.080413][  T674] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.080659][  T674] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.080906][  T674] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.081587][  T674] RSP: 0018:ffa0000001717020 EFLAGS: 00010286
[   23.081833][  T674] RAX: 00000000ffffffa6 RBX: ff1100000ba24e40 RCX: 1ff40000002e2dca
[   23.082121][  T674] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba24efc
[   23.082402][  T674] RBP: ff11000013992000 R08: 1fe22000017449e1 R09: ff11000015fad158
[   23.082695][  T674] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   23.082973][  T674] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   23.083252][  T674] FS:  00007fec38a95840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   23.083594][  T674] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.083829][  T674] CR2: 00007f4f04853574 CR3: 0000000004f65004 CR4: 0000000000771ef0
[   23.084119][  T674] PKRU: 55555554
[   23.084262][  T674] Call Trace:
[   23.084405][  T674]  <TASK>
[   23.084511][  T674]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.084707][  T674]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.084852][  T674]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.085041][  T674]  __dev_notify_flags (net/core/dev.c:9787)
[   23.085237][  T674]  ? netif_change_name (net/core/dev.c:1495)
[   23.085428][  T674]  ? __dev_change_flags (net/core/dev.c:9752)
[   23.085626][  T674]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   23.085822][  T674]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.086022][  T674]  ? trace_hrtimer_start (./include/trace/events/timer.h:223 (discriminator 22))
[   23.086206][  T674]  netif_change_flags (net/core/dev.c:9820)
[   23.086398][  T674]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   23.086599][  T674]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.086795][  T674]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.086987][  T674]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   23.087175][  T674]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.087368][  T674]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.087566][  T674]  ? reinit_class (kernel/locking/lockdep.c:6290 (discriminator 1))
[   23.087760][  T674]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.087938][  T674]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.088119][  T674]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.088313][  T674]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.088511][  T674]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.088701][  T674]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.088891][  T674]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[   23.089126][  T674]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.089317][  T674]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   23.089559][  T674]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   23.089750][  T674]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.089939][  T674]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   23.090138][  T674]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   23.090332][  T674]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   23.090525][  T674]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.090724][  T674]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.090913][  T674]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.091085][  T674]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.091276][  T674]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.091471][  T674]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.091673][  T674]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.091867][  T674]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.092059][  T674]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.092249][  T674]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.092441][  T674]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   23.092639][  T674]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.092830][  T674]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.093016][  T674]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.093214][  T674]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.093402][  T674]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.093597][  T674]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   23.093791][  T674]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.093982][  T674]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.094177][  T674]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.094358][  T674]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.094556][  T674]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.094749][  T674]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.094938][  T674]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.095134][  T674]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   23.095329][  T674]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   23.095532][  T674]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   23.095730][  T674]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   23.095912][  T674]  ? copy_msghdr_from_user (net/socket.c:2635)
[   23.096113][  T674]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   23.096348][  T674]  ? move_addr_to_kernel (net/socket.c:258)
[   23.096547][  T674]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.096753][  T674]  ? queued_spin_lock_slowpath (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1279 ./arch/x86/include/asm/paravirt-spinlock.h:137 kernel/locking/qspinlock.c:141)
[   23.096986][  T674]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.097179][  T674]  ___sys_sendmsg (net/socket.c:2752)
[   23.097370][  T674]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   23.097616][  T674]  ? copy_msghdr_from_user (net/socket.c:2603)
[   23.097823][  T674]  __sys_sendmsg (net/socket.c:2784)
[   23.098006][  T674]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   23.098199][  T674]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   23.098448][  T674]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.098648][  T674]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.098848][  T674]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.099038][  T674]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.099233][  T674]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.099427][  T674]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.099680][  T674] RIP: 0033:0x7fec38ccf08e
[   23.099868][  T674] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.100349][  T674] RSP: 002b:00007ffef29c7420 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.100560][  T674] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fec38ccf08e
[   23.100769][  T674] RDX: 0000000000000000 RSI: 00007ffef29c74d0 RDI: 0000000000000005
[   23.100969][  T674] RBP: 00007ffef29c7430 R08: 0000000000000000 R09: 0000000000000000
[   23.101166][  T674] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dace
[   23.101375][  T674] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffef29c7b90
| [   23.106747][  T686] ------------[ cut here ]------------
| [   23.106960][  T686] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/686
| [   23.107297][  T686] Modules linked in: ipvtap ipvlan
| [   23.107894][  T686] Tainted: [W]=WARN
[   23.108038][  T686] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.108276][  T686] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.108525][  T686] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.109197][  T686] RSP: 0018:ffa0000001577020 EFLAGS: 00010286
[   23.109439][  T686] RAX: 00000000ffffffa6 RBX: ff110000166e3700 RCX: 1ff40000002aedca
[   23.109727][  T686] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166e37bc
[   23.110009][  T686] RBP: ff1100001535a000 R08: 1fe2200002cdc6f9 R09: ff11000016ca2e58
[   23.110292][  T686] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[   23.110581][  T686] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   23.110927][  T686] FS:  00007fe047019840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   23.111258][  T686] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.111498][  T686] CR2: 00000000332ef988 CR3: 000000001830f004 CR4: 0000000000771ef0
[   23.111841][  T686] PKRU: 55555554
[   23.111985][  T686] Call Trace:
[   23.112181][  T686]  <TASK>
[   23.112279][  T686]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.112472][  T686]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.112621][  T686]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.112865][  T686]  __dev_notify_flags (net/core/dev.c:9787)
[   23.113057][  T686]  ? netif_change_name (net/core/dev.c:1495)
[   23.113299][  T686]  ? __dev_change_flags (net/core/dev.c:9752)
[   23.113490][  T686]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   23.113747][  T686]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.113936][  T686]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   23.114127][  T686]  netif_change_flags (net/core/dev.c:9820)
[   23.114319][  T686]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   23.114512][  T686]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   23.114760][  T686]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   23.114946][  T686]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   23.115182][  T686]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.115373][  T686]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.115567][  T686]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   23.115819][  T686]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.116006][  T686]  ? __kernel_text_address (kernel/extable.c:79)
[   23.116196][  T686]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.116388][  T686]  ? osq_unlock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1324 kernel/locking/osq_lock.c:218)
[   23.116582][  T686]  ? osq_lock (kernel/locking/osq_lock.c:204 (discriminator 2))
[   23.116801][  T686]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.116996][  T686]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   23.117187][  T686]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   23.117376][  T686]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.117635][  T686]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   23.117883][  T686]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   23.118075][  T686]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   23.118264][  T686]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.118451][  T686]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.118647][  T686]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.118924][  T686]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.119113][  T686]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.119302][  T686]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.119489][  T686]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.119744][  T686]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.119933][  T686]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.120122][  T686]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.120312][  T686]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   23.120505][  T686]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.120760][  T686]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.120936][  T686]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.121121][  T686]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.121312][  T686]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.121499][  T686]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   23.121755][  T686]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.121947][  T686]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.122138][  T686]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.122325][  T686]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.122521][  T686]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.122775][  T686]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.122963][  T686]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.123151][  T686]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   23.123345][  T686]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   23.123542][  T686]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   23.123788][  T686]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   23.123976][  T686]  ? copy_msghdr_from_user (net/socket.c:2635)
[   23.124160][  T686]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   23.124392][  T686]  ? move_addr_to_kernel (net/socket.c:258)
[   23.124583][  T686]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.124856][  T686]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.125049][  T686]  ___sys_sendmsg (net/socket.c:2752)
[   23.125237][  T686]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   23.125473][  T686]  ? copy_msghdr_from_user (net/socket.c:2603)
[   23.125728][  T686]  __sys_sendmsg (net/socket.c:2784)
[   23.125867][  T686]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   23.126004][  T686]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   23.126176][  T686]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.126313][  T686]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.126451][  T686]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.126592][  T686]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.126784][  T686]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.126923][  T686]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.127094][  T686] RIP: 0033:0x7fe04725308e
[   23.127238][  T686] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.127798][  T686] RSP: 002b:00007ffec3372df0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.128005][  T686] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe04725308e
[   23.128209][  T686] RDX: 0000000000000000 RSI: 00007ffec3372ea0 RDI: 0000000000000005
[   23.128416][  T686] RBP: 00007ffec3372e00 R08: 0000000000000000 R09: 0000000000000000
[   23.128626][  T686] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dace
[   23.128896][  T686] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffec3373560
| [   23.152257][  T661] ------------[ cut here ]------------
| [   23.152433][  T661] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/661
| [   23.152700][  T661] Modules linked in: ipvtap ipvlan
| [   23.153121][  T661] Tainted: [W]=WARN
[   23.153225][  T661] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.153399][  T661] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.153580][  T661] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.154073][  T661] RSP: 0018:ffa0000001697020 EFLAGS: 00010286
[   23.154244][  T661] RAX: 00000000ffffffa6 RBX: ff11000017bef8c0 RCX: 1ff40000002d2dca
[   23.154447][  T661] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000017bef97c
[   23.154664][  T661] RBP: ff1100001412a000 R08: 1fe2200002f7df31 R09: ff1100001836d158
[   23.154868][  T661] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[   23.155069][  T661] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   23.155271][  T661] FS:  00007fef1d1da840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   23.155517][  T661] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.155756][  T661] CR2: 00007f2f22ce7c70 CR3: 0000000004c99002 CR4: 0000000000771ef0
[   23.155961][  T661] PKRU: 55555554
[   23.156064][  T661] Call Trace:
[   23.156262][  T661]  <TASK>
[   23.156335][  T661]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.156475][  T661]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.156584][  T661]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.156787][  T661]  __dev_notify_flags (net/core/dev.c:9787)
[   23.156927][  T661]  ? netif_change_name (net/core/dev.c:1495)
[   23.157063][  T661]  ? __dev_change_flags (net/core/dev.c:9752)
[   23.157199][  T661]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   23.157337][  T661]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.157473][  T661]  ? trace_hrtimer_start (./include/trace/events/timer.h:223 (discriminator 22))
[   23.157617][  T661]  netif_change_flags (net/core/dev.c:9820)
[   23.157823][  T661]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   23.157961][  T661]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.158096][  T661]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.158233][  T661]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   23.158421][  T661]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.158561][  T661]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.158762][  T661]  ? reinit_class (kernel/locking/lockdep.c:6290 (discriminator 1))
[   23.158900][  T661]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.159037][  T661]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.159175][  T661]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.159314][  T661]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.159455][  T661]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.159593][  T661]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.159793][  T661]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[   23.159964][  T661]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.160101][  T661]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   23.160275][  T661]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   23.160412][  T661]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.160560][  T661]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   23.160788][  T661]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   23.160928][  T661]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   23.161069][  T661]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.161206][  T661]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.161343][  T661]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.161483][  T661]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.161628][  T661]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.161832][  T661]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.161970][  T661]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.162109][  T661]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.162250][  T661]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.162388][  T661]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.162531][  T661]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   23.162724][  T661]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.162862][  T661]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.162999][  T661]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.163139][  T661]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.163276][  T661]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.163419][  T661]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   23.163562][  T661]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.163753][  T661]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.163896][  T661]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.164035][  T661]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.164170][  T661]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.164306][  T661]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.164444][  T661]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.164588][  T661]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   23.164798][  T661]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   23.164939][  T661]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   23.165080][  T661]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   23.165221][  T661]  ? copy_msghdr_from_user (net/socket.c:2635)
[   23.165358][  T661]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   23.165535][  T661]  ? move_addr_to_kernel (net/socket.c:258)
[   23.165681][  T661]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.165820][  T661]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.165960][  T661]  ___sys_sendmsg (net/socket.c:2752)
[   23.166096][  T661]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   23.166267][  T661]  ? copy_msghdr_from_user (net/socket.c:2603)
[   23.166414][  T661]  __sys_sendmsg (net/socket.c:2784)
[   23.166556][  T661]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   23.166696][  T661]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   23.166870][  T661]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.167005][  T661]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.167141][  T661]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.167280][  T661]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.167415][  T661]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.167558][  T661]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.167732][  T661] RIP: 0033:0x7fef1d41408e
[   23.167878][  T661] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.168367][  T661] RSP: 002b:00007ffe3587ac90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.168574][  T661] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fef1d41408e
[   23.168780][  T661] RDX: 0000000000000000 RSI: 00007ffe3587ad40 RDI: 0000000000000005
[   23.168985][  T661] RBP: 00007ffe3587aca0 R08: 0000000000000000 R09: 0000000000000000
[   23.169191][  T661] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   23.169395][  T661] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe3587b400
| [   23.174142][  T687] ------------[ cut here ]------------
| [   23.174302][  T687] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/687
| [   23.174547][  T687] Modules linked in: ipvtap ipvlan
| [   23.174982][  T687] Tainted: [W]=WARN
[   23.175089][  T687] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.175261][  T687] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.175444][  T687] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.175952][  T687] RSP: 0018:ffa0000001867020 EFLAGS: 00010286
[   23.176125][  T687] RAX: 00000000ffffffa6 RBX: ff11000014139e00 RCX: 1ff400000030cdca
[   23.176328][  T687] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000014139ebc
[   23.176540][  T687] RBP: ff1100000f9ea000 R08: 1fe22000028273d9 R09: ff11000016ca5158
[   23.176832][  T687] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   23.177036][  T687] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   23.177241][  T687] FS:  00007f26afcc5840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   23.177484][  T687] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.177742][  T687] CR2: 000000003f9c9988 CR3: 00000000165c5002 CR4: 0000000000771ef0
[   23.177952][  T687] PKRU: 55555554
[   23.178157][  T687] Call Trace:
[   23.178262][  T687]  <TASK>
[   23.178334][  T687]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.178476][  T687]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.178587][  T687]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.178790][  T687]  __dev_notify_flags (net/core/dev.c:9787)
[   23.178933][  T687]  ? netif_change_name (net/core/dev.c:1495)
[   23.179073][  T687]  ? __dev_change_flags (net/core/dev.c:9752)
[   23.179212][  T687]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   23.179352][  T687]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.179496][  T687]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   23.179638][  T687]  netif_change_flags (net/core/dev.c:9820)
[   23.179781][  T687]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   23.179920][  T687]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   23.180056][  T687]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   23.180195][  T687]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   23.180372][  T687]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.180514][  T687]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.180660][  T687]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   23.180798][  T687]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.180937][  T687]  ? __kernel_text_address (kernel/extable.c:79)
[   23.181075][  T687]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.181217][  T687]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.181355][  T687]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.181495][  T687]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.181629][  T687]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.181771][  T687]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.181910][  T687]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.182048][  T687]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   23.182189][  T687]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   23.182326][  T687]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   23.182468][  T687]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.182609][  T687]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   23.182756][  T687]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   23.182899][  T687]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   23.183039][  T687]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.183175][  T687]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.183314][  T687]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.183452][  T687]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.183595][  T687]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.183738][  T687]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.183881][  T687]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.184022][  T687]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.184157][  T687]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.184298][  T687]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.184444][  T687]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   23.184587][  T687]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.184736][  T687]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.184876][  T687]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.185019][  T687]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.185158][  T687]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.185299][  T687]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   23.185441][  T687]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.185582][  T687]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.185730][  T687]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.185870][  T687]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.186008][  T687]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.186145][  T687]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.186286][  T687]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.186426][  T687]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   23.186571][  T687]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   23.186719][  T687]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   23.186861][  T687]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   23.187002][  T687]  ? copy_msghdr_from_user (net/socket.c:2635)
[   23.187140][  T687]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   23.187313][  T687]  ? move_addr_to_kernel (net/socket.c:258)
[   23.187453][  T687]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.187595][  T687]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.187740][  T687]  ___sys_sendmsg (net/socket.c:2752)
[   23.187880][  T687]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   23.188054][  T687]  ? copy_msghdr_from_user (net/socket.c:2603)
[   23.188204][  T687]  __sys_sendmsg (net/socket.c:2784)
[   23.188346][  T687]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   23.188488][  T687]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   23.188672][  T687]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.188813][  T687]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.188959][  T687]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.189102][  T687]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.189242][  T687]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.189383][  T687]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.189565][  T687] RIP: 0033:0x7f26afeff08e
[   23.189721][  T687] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.190213][  T687] RSP: 002b:00007ffe62a0adb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.190422][  T687] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f26afeff08e
[   23.190631][  T687] RDX: 0000000000000000 RSI: 00007ffe62a0ae60 RDI: 0000000000000005
[   23.190844][  T687] RBP: 00007ffe62a0adc0 R08: 0000000000000000 R09: 0000000000000000
[   23.191049][  T687] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dace
[   23.191256][  T687] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe62a0b520
| [   23.208247][  T633] ------------[ cut here ]------------
| [   23.208399][  T633] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/633
| [   23.208632][  T633] Modules linked in: ipvtap ipvlan
| [   23.209048][  T633] Tainted: [W]=WARN
[   23.209152][  T633] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.209320][  T633] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.209497][  T633] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.209972][  T633] RSP: 0018:ffa0000001777020 EFLAGS: 00010286
[   23.210142][  T633] RAX: 00000000ffffffa6 RBX: ff11000017b4e900 RCX: 1ff40000002eedca
[   23.210338][  T633] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000017b4e9bc
[   23.210538][  T633] RBP: ff110000130e2000 R08: 1fe2200002f69d39 R09: ff1100000f555158
[   23.210740][  T633] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   23.210933][  T633] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   23.211129][  T633] FS:  00007f45baeb7840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   23.211359][  T633] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.211528][  T633] CR2: 00007ff354f39574 CR3: 0000000004bd3001 CR4: 0000000000771ef0
[   23.211730][  T633] PKRU: 55555554
[   23.211829][  T633] Call Trace:
[   23.211928][  T633]  <TASK>
[   23.211997][  T633]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.212133][  T633]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.212234][  T633]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.212367][  T633]  __dev_notify_flags (net/core/dev.c:9787)
[   23.212512][  T633]  ? netif_change_name (net/core/dev.c:1495)
[   23.212644][  T633]  ? __dev_change_flags (net/core/dev.c:9752)
[   23.212783][  T633]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   23.212914][  T633]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.213051][  T633]  ? trace_hrtimer_start (./include/trace/events/timer.h:223 (discriminator 22))
[   23.213186][  T633]  netif_change_flags (net/core/dev.c:9820)
[   23.213318][  T633]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   23.213450][  T633]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.213585][  T633]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.213721][  T633]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   23.213850][  T633]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.213982][  T633]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.214114][  T633]  ? reinit_class (kernel/locking/lockdep.c:6290 (discriminator 1))
[   23.214248][  T633]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.214378][  T633]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.214511][  T633]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.214647][  T633]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.214785][  T633]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.214915][  T633]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.215050][  T633]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[   23.215220][  T633]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.215352][  T633]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   23.215517][  T633]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   23.215649][  T633]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.215786][  T633]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   23.215920][  T633]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   23.216057][  T633]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   23.216189][  T633]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.216319][  T633]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.216451][  T633]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.216588][  T633]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.216724][  T633]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.216861][  T633]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.216989][  T633]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.217120][  T633]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.217250][  T633]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.217384][  T633]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.217515][  T633]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   23.217646][  T633]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.217783][  T633]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.217913][  T633]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.218047][  T633]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.218176][  T633]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.218307][  T633]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   23.218440][  T633]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.218574][  T633]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.218714][  T633]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.218843][  T633]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.218975][  T633]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.219121][  T633]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.219255][  T633]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.219389][  T633]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   23.219527][  T633]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   23.219720][  T633]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   23.219852][  T633]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   23.219982][  T633]  ? copy_msghdr_from_user (net/socket.c:2635)
[   23.220110][  T633]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   23.220273][  T633]  ? move_addr_to_kernel (net/socket.c:258)
[   23.220406][  T633]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.220541][  T633]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.220729][  T633]  ___sys_sendmsg (net/socket.c:2752)
[   23.220864][  T633]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   23.221034][  T633]  ? copy_msghdr_from_user (net/socket.c:2603)
[   23.221178][  T633]  __sys_sendmsg (net/socket.c:2784)
[   23.221308][  T633]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   23.221439][  T633]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   23.221609][  T633]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.221802][  T633]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.221935][  T633]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.222066][  T633]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.222198][  T633]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.222331][  T633]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.222497][  T633] RIP: 0033:0x7f45bb0f108e
[   23.222636][  T633] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.223165][  T633] RSP: 002b:00007ffca0253920 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.223363][  T633] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f45bb0f108e
[   23.223563][  T633] RDX: 0000000000000000 RSI: 00007ffca02539d0 RDI: 0000000000000005
[   23.223814][  T633] RBP: 00007ffca0253930 R08: 0000000000000000 R09: 0000000000000000
[   23.224009][  T633] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   23.224207][  T633] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffca0254090
| [   23.237444][  T635] ------------[ cut here ]------------
| [   23.237596][  T635] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/635
| [   23.237835][  T635] Modules linked in: ipvtap ipvlan
| [   23.238241][  T635] Tainted: [W]=WARN
[   23.238345][  T635] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.238516][  T635] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.238698][  T635] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.239180][  T635] RSP: 0018:ffa0000001787020 EFLAGS: 00010286
[   23.239353][  T635] RAX: 00000000ffffffa6 RBX: ff1100001504e200 RCX: 1ff40000002f0dca
[   23.239557][  T635] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001504e2bc
[   23.239760][  T635] RBP: ff11000012c3a000 R08: 1fe2200002a09c59 R09: ff1100001828d158
[   23.239960][  T635] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   23.240159][  T635] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   23.240365][  T635] FS:  00007fd68be64840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   23.240600][  T635] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.240773][  T635] CR2: 00007fea7cd02574 CR3: 0000000004f2b004 CR4: 0000000000771ef0
[   23.240973][  T635] PKRU: 55555554
[   23.241073][  T635] Call Trace:
[   23.241172][  T635]  <TASK>
[   23.241241][  T635]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[   23.241375][  T635]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.241511][  T635]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.241613][  T635]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.241750][  T635]  __dev_notify_flags (net/core/dev.c:9787)
[   23.241888][  T635]  ? netif_change_name (net/core/dev.c:1495)
[   23.242021][  T635]  ? __dev_change_flags (net/core/dev.c:9752)
[   23.242155][  T635]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   23.242288][  T635]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.242420][  T635]  ? timerqueue_linked_add (./include/linux/rbtree.h:239 ./include/linux/rbtree.h:281 lib/timerqueue.c:96)
[   23.242561][  T635]  ? trace_hrtimer_start (./include/trace/events/timer.h:223 (discriminator 22))
[   23.242699][  T635]  netif_change_flags (net/core/dev.c:9820)
[   23.242832][  T635]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   23.242965][  T635]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.243098][  T635]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.243231][  T635]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   23.243364][  T635]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.243505][  T635]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.243638][  T635]  ? reinit_class (kernel/locking/lockdep.c:6290 (discriminator 1))
[   23.243784][  T635]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.243916][  T635]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.244050][  T635]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.244187][  T635]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.244320][  T635]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.244453][  T635]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.244588][  T635]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[   23.244758][  T635]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.244890][  T635]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   23.245056][  T635]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   23.245188][  T635]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.245321][  T635]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   23.245456][  T635]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   23.245598][  T635]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   23.245734][  T635]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.245869][  T635]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.246001][  T635]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.246134][  T635]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.246268][  T635]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.246403][  T635]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.246537][  T635]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.246674][  T635]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.246813][  T635]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.246949][  T635]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.247085][  T635]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   23.247221][  T635]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.247356][  T635]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.247487][  T635]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.247628][  T635]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.247761][  T635]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.247896][  T635]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   23.248029][  T635]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.248161][  T635]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.248298][  T635]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.248434][  T635]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.248572][  T635]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.248713][  T635]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.248848][  T635]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.248984][  T635]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   23.249119][  T635]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   23.249253][  T635]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   23.249386][  T635]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   23.249521][  T635]  ? copy_msghdr_from_user (net/socket.c:2635)
[   23.249657][  T635]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   23.249825][  T635]  ? move_addr_to_kernel (net/socket.c:258)
[   23.249961][  T635]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.250093][  T635]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.250226][  T635]  ___sys_sendmsg (net/socket.c:2752)
[   23.250359][  T635]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   23.250529][  T635]  ? copy_msghdr_from_user (net/socket.c:2603)
[   23.250678][  T635]  __sys_sendmsg (net/socket.c:2784)
[   23.250812][  T635]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   23.250945][  T635]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   23.251111][  T635]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.251243][  T635]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.251379][  T635]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.251514][  T635]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.251648][  T635]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.251786][  T635]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.251951][  T635] RIP: 0033:0x7fd68c09e08e
[   23.252091][  T635] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.252567][  T635] RSP: 002b:00007ffd41ac06a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.252771][  T635] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd68c09e08e
[   23.252972][  T635] RDX: 0000000000000000 RSI: 00007ffd41ac0750 RDI: 0000000000000005
[   23.253170][  T635] RBP: 00007ffd41ac06b0 R08: 0000000000000000 R09: 0000000000000000
[   23.253367][  T635] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   23.253569][  T635] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd41ac0e10
| [   23.266977][  T654] ------------[ cut here ]------------
| [   23.267121][  T654] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/654
| [   23.267352][  T654] Modules linked in: ipvtap ipvlan
| [   23.267763][  T654] Tainted: [W]=WARN
[   23.267863][  T654] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.268028][  T654] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.268199][  T654] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.268677][  T654] RSP: 0018:ffa0000001517020 EFLAGS: 00010286
[   23.268846][  T654] RAX: 00000000ffffffa6 RBX: ff1100001504ee40 RCX: 1ff40000002a2dca
[   23.269041][  T654] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001504eefc
[   23.269236][  T654] RBP: ff110000105c2000 R08: 1fe2200002a09de1 R09: ff11000016422e58
[   23.269435][  T654] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   23.269636][  T654] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   23.269841][  T654] FS:  00007f3f0335b840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   23.270072][  T654] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.270237][  T654] CR2: 00007f374c626498 CR3: 000000001792b006 CR4: 0000000000771ef0
[   23.270437][  T654] PKRU: 55555554
[   23.270544][  T654] Call Trace:
[   23.270643][  T654]  <TASK>
[   23.270716][  T654]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.270848][  T654]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.270949][  T654]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.271081][  T654]  __dev_notify_flags (net/core/dev.c:9787)
[   23.271217][  T654]  ? netif_change_name (net/core/dev.c:1495)
[   23.271350][  T654]  ? __dev_change_flags (net/core/dev.c:9752)
[   23.271481][  T654]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   23.271616][  T654]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.271754][  T654]  ? trace_hrtimer_start (./include/trace/events/timer.h:223 (discriminator 22))
[   23.271889][  T654]  netif_change_flags (net/core/dev.c:9820)
[   23.272023][  T654]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   23.272158][  T654]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.272288][  T654]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.272419][  T654]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   23.272554][  T654]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.272691][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.272823][  T654]  ? reinit_class (kernel/locking/lockdep.c:6290 (discriminator 1))
[   23.272957][  T654]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.273089][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.273222][  T654]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.273354][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.273487][  T654]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.273622][  T654]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.273758][  T654]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[   23.273920][  T654]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.274061][  T654]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   23.274227][  T654]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   23.274361][  T654]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.274501][  T654]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   23.274635][  T654]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   23.274775][  T654]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   23.274908][  T654]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.275040][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.275179][  T654]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.275310][  T654]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.275441][  T654]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.275580][  T654]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.275714][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.275844][  T654]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.275975][  T654]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.276109][  T654]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.276240][  T654]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   23.276373][  T654]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.276504][  T654]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.276634][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.276772][  T654]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.276904][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.277039][  T654]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   23.277169][  T654]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.277301][  T654]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.277435][  T654]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.277566][  T654]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.277703][  T654]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.277836][  T654]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.277969][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.278102][  T654]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   23.278234][  T654]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   23.278368][  T654]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   23.278505][  T654]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   23.278637][  T654]  ? copy_msghdr_from_user (net/socket.c:2635)
[   23.278774][  T654]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   23.278935][  T654]  ? move_addr_to_kernel (net/socket.c:258)
[   23.279069][  T654]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.279202][  T654]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.279338][  T654]  ___sys_sendmsg (net/socket.c:2752)
[   23.279470][  T654]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   23.279634][  T654]  ? copy_msghdr_from_user (net/socket.c:2603)
[   23.279783][  T654]  __sys_sendmsg (net/socket.c:2784)
[   23.279913][  T654]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   23.280048][  T654]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   23.280218][  T654]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.280349][  T654]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.280480][  T654]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.280615][  T654]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.280750][  T654]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.280879][  T654]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.281040][  T654] RIP: 0033:0x7f3f0359508e
[   23.281180][  T654] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.281646][  T654] RSP: 002b:00007ffd58e19240 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.281846][  T654] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f3f0359508e
[   23.282040][  T654] RDX: 0000000000000000 RSI: 00007ffd58e192f0 RDI: 0000000000000005
[   23.282233][  T654] RBP: 00007ffd58e19250 R08: 0000000000000000 R09: 0000000000000000
[   23.282426][  T654] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dacd
[   23.282626][  T654] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd58e199b0
| [   23.306265][  T678] ------------[ cut here ]------------
| [   23.306414][  T678] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/678
| [   23.306658][  T678] Modules linked in: ipvtap ipvlan
| [   23.307068][  T678] Tainted: [W]=WARN
[   23.307169][  T678] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.307337][  T678] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.307517][  T678] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.307991][  T678] RSP: 0018:ffa0000001687020 EFLAGS: 00010286
[   23.308163][  T678] RAX: 00000000ffffffa6 RBX: ff11000014502040 RCX: 1ff40000002d0dca
[   23.308362][  T678] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000145020fc
[   23.308567][  T678] RBP: ff11000014852000 R08: 1fe22000028a0421 R09: ff11000015ff8b58
[   23.308830][  T678] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[   23.309026][  T678] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   23.309220][  T678] FS:  00007f29acab5840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   23.309450][  T678] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.309619][  T678] CR2: 00007ffcaf9b4688 CR3: 000000001839a006 CR4: 0000000000771ef0
[   23.309884][  T678] PKRU: 55555554
[   23.309983][  T678] Call Trace:
[   23.310078][  T678]  <TASK>
[   23.310145][  T678]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.310276][  T678]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.310380][  T678]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.310517][  T678]  __dev_notify_flags (net/core/dev.c:9787)
[   23.310709][  T678]  ? netif_change_name (net/core/dev.c:1495)
[   23.310845][  T678]  ? __dev_change_flags (net/core/dev.c:9752)
[   23.310978][  T678]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   23.311109][  T678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.311241][  T678]  ? timerqueue_linked_add (./include/linux/rbtree.h:239 ./include/linux/rbtree.h:281 lib/timerqueue.c:96)
[   23.311374][  T678]  ? trace_hrtimer_start (./include/trace/events/timer.h:223 (discriminator 22))
[   23.311511][  T678]  netif_change_flags (net/core/dev.c:9820)
[   23.311704][  T678]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   23.311837][  T678]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.311970][  T678]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.312102][  T678]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   23.312235][  T678]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.312366][  T678]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.312504][  T678]  ? reinit_class (kernel/locking/lockdep.c:6290 (discriminator 1))
[   23.312638][  T678]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.312838][  T678]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.312971][  T678]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.313104][  T678]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.313240][  T678]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.313373][  T678]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.313510][  T678]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[   23.313730][  T678]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.313863][  T678]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   23.314027][  T678]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   23.314158][  T678]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.314292][  T678]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   23.314425][  T678]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   23.314564][  T678]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   23.314796][  T678]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.314927][  T678]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.315059][  T678]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.315193][  T678]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.315325][  T678]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.315460][  T678]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.315595][  T678]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.315780][  T678]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.315911][  T678]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.316044][  T678]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.316175][  T678]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   23.316305][  T678]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.316435][  T678]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.316568][  T678]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.316769][  T678]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.316899][  T678]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.317027][  T678]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   23.317157][  T678]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.317288][  T678]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.317422][  T678]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.317555][  T678]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.317742][  T678]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.317873][  T678]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.318002][  T678]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.318133][  T678]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   23.318265][  T678]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   23.318396][  T678]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   23.318532][  T678]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   23.318739][  T678]  ? copy_msghdr_from_user (net/socket.c:2635)
[   23.318869][  T678]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   23.319029][  T678]  ? move_addr_to_kernel (net/socket.c:258)
[   23.319160][  T678]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.319292][  T678]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.319423][  T678]  ___sys_sendmsg (net/socket.c:2752)
[   23.319559][  T678]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   23.319785][  T678]  ? copy_msghdr_from_user (net/socket.c:2603)
[   23.319926][  T678]  __sys_sendmsg (net/socket.c:2784)
[   23.320055][  T678]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   23.320183][  T678]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   23.320347][  T678]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.320479][  T678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.320614][  T678]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.320799][  T678]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.320929][  T678]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.321058][  T678]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.321217][  T678] RIP: 0033:0x7f29accef08e
[   23.321354][  T678] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.321880][  T678] RSP: 002b:00007ffe02e5f660 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.322076][  T678] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f29accef08e
[   23.322269][  T678] RDX: 0000000000000000 RSI: 00007ffe02e5f710 RDI: 0000000000000005
[   23.322463][  T678] RBP: 00007ffe02e5f670 R08: 0000000000000000 R09: 0000000000000000
[   23.322728][  T678] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dace
[   23.322923][  T678] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe02e5fdd0
| [   23.360625][  T677] ------------[ cut here ]------------
| [   23.360790][  T677] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/677
| [   23.361022][  T677] Modules linked in: ipvtap ipvlan
| [   23.361427][  T677] Tainted: [W]=WARN
[   23.361534][  T677] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.361708][  T677] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.361881][  T677] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.362356][  T677] RSP: 0018:ffa00000015a7020 EFLAGS: 00010286
[   23.362533][  T677] RAX: 00000000ffffffa6 RBX: ff110000166da580 RCX: 1ff40000002b4dca
[   23.362739][  T677] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166da63c
[   23.362936][  T677] RBP: ff11000013c3a000 R08: 1fe2200002cdb4c9 R09: ff11000015ffd158
[   23.363134][  T677] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   23.363329][  T677] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   23.363534][  T677] FS:  00007f0374647840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   23.363771][  T677] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.363936][  T677] CR2: 00007f3c164b7000 CR3: 0000000017bba003 CR4: 0000000000771ef0
[   23.364133][  T677] PKRU: 55555554
[   23.364231][  T677] Call Trace:
[   23.364328][  T677]  <TASK>
[   23.364398][  T677]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.364538][  T677]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.364637][  T677]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.364776][  T677]  __dev_notify_flags (net/core/dev.c:9787)
[   23.364908][  T677]  ? netif_change_name (net/core/dev.c:1495)
[   23.365042][  T677]  ? __dev_change_flags (net/core/dev.c:9752)
[   23.365175][  T677]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   23.365306][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.365437][  T677]  ? trace_hrtimer_start (./include/trace/events/timer.h:223 (discriminator 22))
[   23.365575][  T677]  netif_change_flags (net/core/dev.c:9820)
[   23.365713][  T677]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   23.365848][  T677]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.365979][  T677]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.366112][  T677]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   23.366244][  T677]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.366374][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.366509][  T677]  ? reinit_class (kernel/locking/lockdep.c:6290 (discriminator 1))
[   23.366642][  T677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.366775][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.366908][  T677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.367039][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.367170][  T677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.367301][  T677]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.367432][  T677]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[   23.367597][  T677]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.367735][  T677]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   23.367897][  T677]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   23.368031][  T677]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   23.368165][  T677]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   23.368299][  T677]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   23.368435][  T677]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   23.368575][  T677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.368710][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.368841][  T677]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.368972][  T677]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.369105][  T677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.369237][  T677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.369366][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.369500][  T677]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.369633][  T677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.369769][  T677]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   23.369901][  T677]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   23.370033][  T677]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.370164][  T677]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.370292][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.370430][  T677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.370567][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.370757][  T677]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   23.370888][  T677]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.371018][  T677]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.371152][  T677]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.371281][  T677]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.371415][  T677]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.371553][  T677]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.371741][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.371929][  T677]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   23.372063][  T677]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   23.372194][  T677]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   23.372327][  T677]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   23.372459][  T677]  ? copy_msghdr_from_user (net/socket.c:2635)
[   23.372593][  T677]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   23.372815][  T677]  ? move_addr_to_kernel (net/socket.c:258)
[   23.372948][  T677]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.373080][  T677]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.373211][  T677]  ___sys_sendmsg (net/socket.c:2752)
[   23.373340][  T677]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   23.373506][  T677]  ? copy_msghdr_from_user (net/socket.c:2603)
[   23.373706][  T677]  __sys_sendmsg (net/socket.c:2784)
[   23.373837][  T677]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   23.373967][  T677]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   23.374187][  T677]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.374319][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.374452][  T677]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.374589][  T677]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.374777][  T677]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.374910][  T677]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.375072][  T677] RIP: 0033:0x7f037488108e
[   23.375210][  T677] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.375745][  T677] RSP: 002b:00007ffca65a0790 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.375944][  T677] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f037488108e
[   23.376139][  T677] RDX: 0000000000000000 RSI: 00007ffca65a0840 RDI: 0000000000000005
[   23.376334][  T677] RBP: 00007ffca65a07a0 R08: 0000000000000000 R09: 0000000000000000
[   23.376533][  T677] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dace
[   23.376789][  T677] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffca65a0f00
| [   84.081319][T12524] ------------[ cut here ]------------
| [   84.081496][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.081769][T12524] Modules linked in: ipvtap ipvlan
| [   84.082178][T12524] Tainted: [W]=WARN
[   84.082277][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.082449][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.082623][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.083095][T12524] RSP: 0018:ffa0000009327060 EFLAGS: 00010286
[   84.083261][T12524] RAX: 00000000ffffffa6 RBX: ff110000166f6c80 RCX: 1ff4000001264dd2
[   84.083455][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166f6d3c
[   84.083655][T12524] RBP: ff11000007edc000 R08: 1fe2200002cdeda9 R09: ff11000009c40b58
[   84.083854][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.084044][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000078d9000
[   84.084239][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.084468][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.084633][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.084835][T12524] PKRU: 55555554
[   84.084932][T12524] Call Trace:
[   84.085029][T12524]  <TASK>
[   84.085097][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.085229][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.085329][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.085462][T12524]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   84.085593][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.085801][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.085930][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.086094][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.086255][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.086385][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.086546][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.086769][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.086898][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.087149][T12524]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   84.087281][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.087411][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.087539][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.087746][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.087874][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.088003][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.088149][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.088277][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.088404][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.088532][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.088751][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.088881][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.089013][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.089144][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.089273][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.089404][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.089534][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.089672][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.089809][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.089937][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.090066][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.090199][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.090329][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.090459][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.090588][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.090732][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.090868][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.090999][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.091133][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.091263][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.091395][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.091525][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.091665][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.091802][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.091935][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.092065][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.092192][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.092351][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.092484][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.092614][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.092762][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.092892][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.093052][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.093193][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.093324][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.093452][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.093615][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.093758][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.093890][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.094022][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.094152][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.094281][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.094440][T12524] RIP: 0033:0x7fc51cbba08e
[   84.094578][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.095044][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.095241][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.095432][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.095624][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.095825][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.096017][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.099417][T12524] ------------[ cut here ]------------
| [   84.099555][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.099818][T12524] Modules linked in: ipvtap ipvlan
| [   84.100214][T12524] Tainted: [W]=WARN
[   84.100311][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.100472][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.100644][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.101116][T12524] RSP: 0018:ffa0000009327060 EFLAGS: 00010286
[   84.101280][T12524] RAX: 00000000ffffffa6 RBX: ff110000166f7c40 RCX: 1ff4000001264dd2
[   84.101473][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166f7cfc
[   84.101668][T12524] RBP: ff110000078d9000 R08: 1fe2200002cdefa1 R09: ff11000009c40b58
[   84.101872][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.102066][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000093270f8
[   84.102261][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.102489][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.102657][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.102858][T12524] PKRU: 55555554
[   84.102954][T12524] Call Trace:
[   84.103051][T12524]  <TASK>
[   84.103117][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.103248][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.103382][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.103483][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.103615][T12524]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   84.103757][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.103888][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.104018][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.104180][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.104344][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.104476][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.104636][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.104776][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.104905][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.105071][T12524]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   84.105204][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.105333][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.105461][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.105591][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.105731][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.105861][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.106010][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.106138][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.106309][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.106443][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.106575][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.106715][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.106846][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.106975][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.107106][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.107238][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.107374][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.107510][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.107677][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.107810][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.108043][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.108174][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.108301][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.108431][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.108649][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.108785][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.108916][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.109044][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.109262][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.109391][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.109522][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.109745][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.109876][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.110006][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.110137][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.110266][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.110479][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.110639][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.110782][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.110997][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.111126][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.111254][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.111413][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.111641][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.111783][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.111914][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.112076][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.112291][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.112424][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.112554][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.112693][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.112910][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.113071][T12524] RIP: 0033:0x7fc51cbba08e
[   84.113206][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.113766][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.113962][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.114238][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.114430][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.114717][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.114910][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.122463][T12524] ------------[ cut here ]------------
| [   84.122610][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.122888][T12524] Modules linked in: ipvtap ipvlan
| [   84.123300][T12524] Tainted: [W]=WARN
[   84.123403][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.123574][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.123759][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.124238][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.124407][T12524] RAX: 00000000ffffffa6 RBX: ff1100001504fc40 RCX: 1ff4000001264d89
[   84.124606][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001504fcfc
[   84.124820][T12524] RBP: ff1100000fef2000 R08: 1fe2200002a09fa1 R09: ff11000009c40b58
[   84.125024][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.125226][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e56a000
[   84.125430][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.125668][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.125844][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.126047][T12524] PKRU: 55555554
[   84.126149][T12524] Call Trace:
[   84.126250][T12524]  <TASK>
[   84.126319][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.126454][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.126557][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.126880][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.127018][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.127185][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.127356][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.127493][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.127725][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.127860][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.128030][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.128200][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.128374][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.128513][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.128748][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.128972][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.129107][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.129241][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.129413][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.129548][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.129746][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.129880][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.130013][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.130145][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.130299][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.130433][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.130566][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.130765][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.130899][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.131033][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.131168][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.131303][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.131438][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.131571][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.131766][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.131900][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.132035][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.132169][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.132303][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.132436][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.132567][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.132763][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.132897][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.133030][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.133167][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.133302][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.133440][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.133575][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.133774][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.133909][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.134044][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.134178][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.134317][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.134452][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.134587][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.134825][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.134960][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.135095][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.135231][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.135365][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.135534][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.135747][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.135882][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.136014][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.136186][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.136322][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.136458][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.136749][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.136884][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.137017][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.137183][T12524] RIP: 0033:0x7fc51cbba08e
[   84.137322][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.137965][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.138168][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.138367][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.138571][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.138931][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.139134][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.143017][T12524] ------------[ cut here ]------------
| [   84.143171][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/12524
| [   84.143446][T12524] Modules linked in: ipvtap ipvlan
| [   84.143878][T12524] Tainted: [W]=WARN
[   84.143980][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.144146][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.144324][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.144820][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.144991][T12524] RAX: 00000000ffffffa6 RBX: ff11000018db43c0 RCX: 1ff4000001264d89
[   84.145193][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000018db447c
[   84.145394][T12524] RBP: ff1100000e56a000 R08: 1fe22000031b6891 R09: ff11000009c40b58
[   84.145594][T12524] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   84.145811][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e4ba000
[   84.146014][T12524] FS:  00007fc51c980840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   84.146250][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.146422][T12524] CR2: 00005559e9c93d5c CR3: 000000001c22b004 CR4: 0000000000771ef0
[   84.146635][T12524] PKRU: 55555554
[   84.146749][T12524] Call Trace:
[   84.146851][T12524]  <TASK>
[   84.146921][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.147055][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.147189][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.147292][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.147427][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.147566][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.147749][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.147918][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.148054][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.148221][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.148354][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.148521][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.148708][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.148881][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.149018][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.149187][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.149354][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.149490][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.149623][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.149807][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.149943][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.150075][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.150208][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.150342][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.150477][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.150628][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.150777][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.150911][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.151044][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.151178][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.151315][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.151450][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.151584][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.151731][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.151864][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.151999][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.152134][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.152268][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.152400][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.152534][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.152673][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.152814][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.152949][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.153084][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.153219][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.153359][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.153491][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.153630][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.153782][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.153917][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.154053][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.154188][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.154323][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.154459][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.154594][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.154739][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.154908][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.155043][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.155177][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.155312][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.155444][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.155610][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.155771][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.155908][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.156042][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.156210][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.156345][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.156480][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.156615][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.156761][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.156898][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.157064][T12524] RIP: 0033:0x7fc51cbba08e
[   84.157203][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.157693][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.157901][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.158103][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.158303][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.158504][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.158718][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.166971][T12524] ------------[ cut here ]------------
| [   84.167114][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/12524
| [   84.167384][T12524] Modules linked in: ipvtap ipvlan
| [   84.168014][T12524] Tainted: [W]=WARN
[   84.168121][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.168291][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.168467][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.168958][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.169128][T12524] RAX: 00000000ffffffa6 RBX: ff11000012abaac0 RCX: 1ff4000001264d89
[   84.169327][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012abab7c
[   84.169528][T12524] RBP: ff1100000e4ba000 R08: 1fe2200002557571 R09: ff11000009c40b58
[   84.169741][T12524] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   84.169943][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e8ca000
[   84.170144][T12524] FS:  00007fc51c980840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   84.170379][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.170548][T12524] CR2: 00005559e9c93d5c CR3: 000000001c22b004 CR4: 0000000000771ef0
[   84.170763][T12524] PKRU: 55555554
[   84.170868][T12524] Call Trace:
[   84.170968][T12524]  <TASK>
[   84.171039][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.171174][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.171309][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.171412][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.171553][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.171706][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.171883][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.172056][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.172197][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.172374][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.172514][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.172697][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.172867][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.173040][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.173176][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.173346][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.173516][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.173656][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.173796][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.173966][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.174104][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.174238][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.174372][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.174507][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.174639][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.174801][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.174934][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.175071][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.175204][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.175337][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.175470][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.175607][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.175751][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.175884][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.176019][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.176154][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.176287][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.176422][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.176556][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.176699][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.176834][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.176966][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.177104][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.177237][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.177371][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.177510][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.177643][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.177789][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.177925][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.178062][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.178197][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.178334][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.178469][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.178604][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.178749][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.178883][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.179050][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.179186][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.179321][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.179457][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.179592][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.179773][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.179919][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.180054][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.180189][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.180357][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.180493][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.180629][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.180776][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.180912][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.181045][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.181214][T12524] RIP: 0033:0x7fc51cbba08e
[   84.181355][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.181843][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.182046][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.182249][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.182448][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.182648][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.182912][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.185845][T12524] ------------[ cut here ]------------
| [   84.185985][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/12524
| [   84.186250][T12524] Modules linked in: ipvtap ipvlan
| [   84.186664][T12524] Tainted: [W]=WARN
[   84.186771][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.186941][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.187116][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.187590][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.187770][T12524] RAX: 00000000ffffffa6 RBX: ff110000166f71c0 RCX: 1ff4000001264d89
[   84.187970][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166f727c
[   84.188186][T12524] RBP: ff1100000e8ca000 R08: 1fe2200002cdee51 R09: ff11000009c40b58
[   84.188387][T12524] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   84.188585][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000feba000
[   84.188801][T12524] FS:  00007fc51c980840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   84.189037][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.189205][T12524] CR2: 00005559e9c93d5c CR3: 000000001c22b004 CR4: 0000000000771ef0
[   84.189408][T12524] PKRU: 55555554
[   84.189508][T12524] Call Trace:
[   84.189607][T12524]  <TASK>
[   84.189688][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.189827][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.189962][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.190064][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.190200][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.190334][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.190504][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.190676][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.190819][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.190990][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.191125][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.191292][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.191460][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.191631][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.191778][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.191949][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.192115][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.192249][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.192384][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.192555][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.192708][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.192842][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.192979][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.193114][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.193247][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.193399][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.193532][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.193672][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.193810][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.193946][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.194081][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.194219][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.194352][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.194487][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.194622][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.194765][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.194900][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.195037][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.195171][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.195307][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.195444][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.195578][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.195749][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.195883][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.196018][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.196158][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.196293][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.196430][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.196567][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.196713][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.196854][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.196991][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.197129][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.197266][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.197400][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.197535][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.197712][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.197847][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.197982][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.198121][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.198254][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.198418][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.198565][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.198711][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.198844][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.199014][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.199151][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.199287][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.199421][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.199556][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.199700][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.199866][T12524] RIP: 0033:0x7fc51cbba08e
[   84.200003][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.200480][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.200691][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.200893][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.201097][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.201298][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.201499][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.204256][T12524] ------------[ cut here ]------------
| [   84.204478][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/12524
| [   84.204753][T12524] Modules linked in: ipvtap ipvlan
| [   84.205254][T12524] Tainted: [W]=WARN
[   84.205354][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.205521][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.205807][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.206377][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.206546][T12524] RAX: 00000000ffffffa6 RBX: ff110000150571c0 RCX: 1ff4000001264d89
[   84.206755][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001505727c
[   84.207048][T12524] RBP: ff1100000feba000 R08: 1fe2200002a0ae51 R09: ff11000009c40b58
[   84.207248][T12524] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   84.207448][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f392000
[   84.207757][T12524] FS:  00007fc51c980840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   84.207991][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.208159][T12524] CR2: 00005559e9c93d5c CR3: 000000001c22b004 CR4: 0000000000771ef0
[   84.208453][T12524] PKRU: 55555554
[   84.208555][T12524] Call Trace:
[   84.208659][T12524]  <TASK>
[   84.208735][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.208960][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.209095][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.209198][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.209339][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.209564][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.209745][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.209912][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.210048][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.210308][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.210443][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.210615][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.210886][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.211058][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.211196][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.211366][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.211622][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.211769][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.211903][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.212164][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.212298][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.212431][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.212563][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.212707][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.212841][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.212995][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.213129][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.213354][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.213489][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.213623][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.213768][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.213995][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.214131][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.214263][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.214398][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.214622][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.214768][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.214902][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.215036][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.215261][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.215397][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.215531][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.215671][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.215904][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.216040][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.216177][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.216311][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.216540][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.216687][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.216823][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.216957][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.217183][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.217318][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.217453][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.217587][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.217734][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.217900][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.218036][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.218171][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.218396][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.218530][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.218710][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.218857][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.219084][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.219219][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.219388][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.219611][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.219759][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.219894][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.220032][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.220255][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.220424][T12524] RIP: 0033:0x7fc51cbba08e
[   84.220564][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.221148][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.221350][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.221643][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.221853][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.222056][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.222350][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.226063][T12524] ------------[ cut here ]------------
| [   84.226203][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/12524
| [   84.226554][T12524] Modules linked in: ipvtap ipvlan
| [   84.227067][T12524] Tainted: [W]=WARN
[   84.227171][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.227338][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.227511][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.228091][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.228352][T12524] RAX: 00000000ffffffa6 RBX: ff1100001714b540 RCX: 1ff4000001264d89
[   84.228552][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001714b5fc
[   84.228765][T12524] RBP: ff1100000f392000 R08: 1fe2200002e296c1 R09: ff11000009c40b58
[   84.229055][T12524] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   84.229256][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000105c2000
[   84.229456][T12524] FS:  00007fc51c980840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   84.229793][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.229960][T12524] CR2: 00005559e9c93d5c CR3: 000000001c22b004 CR4: 0000000000771ef0
[   84.230250][T12524] PKRU: 55555554
[   84.230353][T12524] Call Trace:
[   84.230451][T12524]  <TASK>
[   84.230521][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.230660][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.230886][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.230988][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.231122][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.231258][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.231517][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.231694][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.231830][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.231997][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.232221][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.232389][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.232559][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.232743][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.232879][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.233047][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.233215][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.233440][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.233573][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.233756][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.233982][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.234117][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.234250][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.234387][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.234609][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.234770][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.234903][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.235039][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.235260][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.235394][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.235528][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.235667][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.235892][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.236025][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.236163][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.236299][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.236524][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.236663][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.236798][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.236930][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.237156][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.237289][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.237425][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.237557][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.237701][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.237840][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.237972][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.238108][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.238336][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.238473][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.238609][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.238755][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.238980][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.239116][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.239248][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.239383][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.239641][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.239787][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.239923][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.240058][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.240283][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.240450][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.240598][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.240746][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.240972][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.241139][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.241275][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.241410][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.241632][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.241821][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.241965][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.242232][T12524] RIP: 0033:0x7fc51cbba08e
[   84.242377][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.242980][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.243188][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.243398][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.243704][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.243910][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.244209][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.247075][T12524] ------------[ cut here ]------------
| [   84.247218][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/12524
| [   84.247585][T12524] Modules linked in: ipvtap ipvlan
| [   84.248019][T12524] Tainted: [W]=WARN
[   84.248216][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.248388][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.248570][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.249070][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.249244][T12524] RAX: 00000000ffffffa6 RBX: ff11000010786900 RCX: 1ff4000001264d89
[   84.249547][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000107869bc
[   84.249763][T12524] RBP: ff110000105c2000 R08: 1fe22000020f0d39 R09: ff11000009c40b58
[   84.250063][T12524] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   84.250269][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d7fa000
[   84.250475][T12524] FS:  00007fc51c980840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   84.250822][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.250996][T12524] CR2: 00005559e9c93d5c CR3: 000000001c22b004 CR4: 0000000000771ef0
[   84.251205][T12524] PKRU: 55555554
[   84.251398][T12524] Call Trace:
[   84.251501][T12524]  <TASK>
[   84.251573][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.251725][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.251864][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.252060][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.252200][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.252338][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.252513][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.252786][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.252929][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.253103][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.253331][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.253505][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.253688][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.253957][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.254098][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.254273][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.254443][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.254677][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.254819][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.254995][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.255135][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.255365][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.255506][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.255644][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.255883][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.256040][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.256178][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.256316][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.256454][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.256711][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.256854][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.256993][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.257130][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.257359][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.257498][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.257637][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.257789][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.257929][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.258066][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.258204][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.258344][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.258572][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.258724][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.258863][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.259003][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.259236][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.259374][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.259515][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.259660][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.259804][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.259945][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.260084][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.260228][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.260461][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.260599][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.260746][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.261007][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.261147][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.261286][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.261436][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.261666][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.261843][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.261993][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.262132][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.262361][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.262538][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.262687][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.262827][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.263057][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.263195][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.263334][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.263505][T12524] RIP: 0033:0x7fc51cbba08e
[   84.263753][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.264348][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.264555][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.264771][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.265073][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.265278][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.265484][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.280459][T12524] ------------[ cut here ]------------
| [   84.280622][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.280908][T12524] Modules linked in: ipvtap ipvlan
| [   84.281336][T12524] Tainted: [W]=WARN
[   84.281445][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.281631][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.281824][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.282321][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.282497][T12524] RAX: 00000000ffffffa6 RBX: ff11000010787e00 RCX: 1ff4000001264d89
[   84.282722][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010787ebc
[   84.282929][T12524] RBP: ff1100000d7fa000 R08: 1fe22000020f0fd9 R09: ff11000009c40b58
[   84.283136][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.283342][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f2a2000
[   84.283552][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.283804][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.283976][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.284184][T12524] PKRU: 55555554
[   84.284288][T12524] Call Trace:
[   84.284398][T12524]  <TASK>
[   84.284470][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.284611][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.284763][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.284869][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.285010][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.285149][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.285323][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.285500][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.285642][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.285826][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.285965][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.286139][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.286315][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.286493][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.286636][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.286821][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.286994][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.287132][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.287271][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.287448][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.287591][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.287736][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.287877][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.288015][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.288154][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.288310][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.288448][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.288586][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.288736][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.288875][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.289017][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.289159][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.289296][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.289436][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.289576][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.289728][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.289868][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.290010][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.290150][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.290291][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.290431][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.290569][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.290720][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.290861][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.290999][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.291140][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.291278][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.291418][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.291560][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.291710][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.291856][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.291996][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.292138][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.292280][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.292420][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.292558][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.292744][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.292888][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.293030][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.293174][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.293313][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.293488][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.293639][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.293790][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.293928][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.294108][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.294249][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.294392][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.294532][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.294677][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.294818][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.294990][T12524] RIP: 0033:0x7fc51cbba08e
[   84.295141][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.295630][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.295848][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.296058][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.296269][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.296478][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.296696][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.299587][T12524] ------------[ cut here ]------------
| [   84.299743][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.300016][T12524] Modules linked in: ipvtap ipvlan
| [   84.300441][T12524] Tainted: [W]=WARN
[   84.300546][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.300728][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.300908][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.301402][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.301578][T12524] RAX: 00000000ffffffa6 RBX: ff110000156c5000 RCX: 1ff4000001264d89
[   84.301794][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000156c50bc
[   84.302006][T12524] RBP: ff1100000f2a2000 R08: 1fe2200002ad8a19 R09: ff11000009c40b58
[   84.302215][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.302421][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012baa000
[   84.302630][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.302883][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.303056][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.303265][T12524] PKRU: 55555554
[   84.303371][T12524] Call Trace:
[   84.303474][T12524]  <TASK>
[   84.303546][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.303697][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.303839][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.303945][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.304084][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.304223][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.304398][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.304570][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.304721][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.304897][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.305035][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.305209][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.305384][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.305561][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.305714][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.305892][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.306067][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.306205][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.306344][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.306523][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.306666][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.306810][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.306948][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.307089][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.307226][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.307381][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.307517][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.307660][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.307803][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.307943][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.308085][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.308226][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.308362][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.308501][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.308641][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.308792][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.308932][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.309073][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.309211][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.309350][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.309492][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.309629][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.309779][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.309919][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.310059][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.310206][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.310345][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.310486][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.310627][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.310775][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.310916][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.311057][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.311197][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.311341][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.311480][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.311618][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.311799][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.311939][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.312078][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.312219][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.312359][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.312535][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.312695][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.312835][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.312972][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.313145][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.313284][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.313427][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.313566][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.313715][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.313855][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.314027][T12524] RIP: 0033:0x7fc51cbba08e
[   84.314173][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.314674][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.314888][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.315095][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.315304][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.315513][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.315727][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.318202][T12524] ------------[ cut here ]------------
| [   84.318344][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.318612][T12524] Modules linked in: ipvtap ipvlan
| [   84.319045][T12524] Tainted: [W]=WARN
[   84.319150][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.319322][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.319501][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.320008][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.320185][T12524] RAX: 00000000ffffffa6 RBX: ff11000016e24580 RCX: 1ff4000001264d89
[   84.320393][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016e2463c
[   84.320598][T12524] RBP: ff11000012baa000 R08: 1fe2200002dc48c9 R09: ff11000009c40b58
[   84.320819][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.321029][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012cb2000
[   84.321239][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.321483][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.321661][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.321878][T12524] PKRU: 55555554
[   84.321982][T12524] Call Trace:
[   84.322087][T12524]  <TASK>
[   84.322159][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.322299][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.322438][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.322543][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.322695][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.322836][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.323011][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.323184][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.323327][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.323505][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.323643][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.323831][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.324005][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.324180][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.324320][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.324496][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.324670][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.324815][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.324955][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.325131][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.325270][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.325408][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.325545][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.325692][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.325832][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.325990][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.326127][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.326266][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.326403][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.326543][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.326691][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.326832][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.326972][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.327110][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.327251][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.327392][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.327532][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.327676][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.327819][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.327958][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.328102][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.328240][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.328382][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.328523][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.328667][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.328814][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.328954][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.329097][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.329237][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.329377][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.329519][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.329664][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.329810][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.329951][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.330090][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.330231][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.330403][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.330541][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.330690][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.330830][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.330970][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.331143][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.331296][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.331438][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.331577][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.331764][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.331903][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.332043][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.332183][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.332325][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.332465][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.332639][T12524] RIP: 0033:0x7fc51cbba08e
[   84.332794][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.333287][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.333499][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.333716][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.333925][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.334135][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.334346][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.337085][T12524] ------------[ cut here ]------------
| [   84.337234][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.337511][T12524] Modules linked in: ipvtap ipvlan
| [   84.337942][T12524] Tainted: [W]=WARN
[   84.338047][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.338223][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.338404][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.338909][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.339087][T12524] RAX: 00000000ffffffa6 RBX: ff1100000c798200 RCX: 1ff4000001264d89
[   84.339294][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c7982bc
[   84.339502][T12524] RBP: ff11000012cb2000 R08: 1fe22000018f3059 R09: ff11000009c40b58
[   84.339719][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.339924][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012dc2000
[   84.340139][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.340384][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.340559][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.340777][T12524] PKRU: 55555554
[   84.340881][T12524] Call Trace:
[   84.340987][T12524]  <TASK>
[   84.341059][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.341197][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.341336][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.341443][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.341584][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.341737][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.341913][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.342091][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.342232][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.342406][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.342546][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.342730][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.342905][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.343084][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.343227][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.343403][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.343578][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.343725][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.343865][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.344045][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.344187][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.344327][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.344467][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.344607][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.344755][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.344913][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.345053][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.345194][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.345332][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.345470][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.345611][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.345759][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.345901][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.346039][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.346178][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.346318][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.346458][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.346596][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.346743][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.346882][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.347023][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.347161][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.347302][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.347442][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.347581][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.347736][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.347876][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.348018][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.348159][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.348299][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.348465][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.348605][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.348758][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.348899][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.349039][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.349177][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.349349][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.349494][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.349635][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.349784][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.349923][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.350095][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.350247][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.350388][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.350531][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.350713][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.350852][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.350992][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.351131][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.351268][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.351407][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.351579][T12524] RIP: 0033:0x7fc51cbba08e
[   84.351738][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.352232][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.352440][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.352650][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.352865][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.353074][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.353282][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.356368][T12524] ------------[ cut here ]------------
| [   84.356514][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.356803][T12524] Modules linked in: ipvtap ipvlan
| [   84.357224][T12524] Tainted: [W]=WARN
[   84.357327][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.357503][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.357691][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.358185][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.358361][T12524] RAX: 00000000ffffffa6 RBX: ff110000145e0740 RCX: 1ff4000001264d89
[   84.358567][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000145e07fc
[   84.358786][T12524] RBP: ff11000012dc2000 R08: 1fe22000028bc101 R09: ff11000009c40b58
[   84.358992][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.359199][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fdb2000
[   84.359408][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.359659][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.359836][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.360043][T12524] PKRU: 55555554
[   84.360147][T12524] Call Trace:
[   84.360250][T12524]  <TASK>
[   84.360321][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.360461][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.360602][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.360716][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.360857][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.360996][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.361171][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.361345][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.361487][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.361668][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.361814][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.361991][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.362165][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.362342][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.362482][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.362668][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.362845][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.362983][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.363122][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.363300][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.363441][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.363581][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.363732][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.363873][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.364012][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.364169][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.364309][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.364448][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.364587][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.364734][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.364876][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.365015][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.365153][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.365290][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.365431][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.365571][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.365721][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.365864][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.366003][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.366141][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.366282][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.366421][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.366562][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.366710][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.366850][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.366995][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.367134][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.367275][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.367414][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.367553][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.367702][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.367842][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.367985][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.368126][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.368264][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.368405][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.368576][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.368726][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.368866][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.369008][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.369147][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.369319][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.369471][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.369613][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.369761][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.369930][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.370067][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.370204][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.370338][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.370472][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.370607][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.370785][T12524] RIP: 0033:0x7fc51cbba08e
[   84.370926][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.371410][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.371613][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.371823][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.372028][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.372228][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.372428][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.375296][T12524] ------------[ cut here ]------------
| [   84.375429][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.375697][T12524] Modules linked in: ipvtap ipvlan
| [   84.376106][T12524] Tainted: [W]=WARN
[   84.376207][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.376373][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.376547][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.377031][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.377199][T12524] RAX: 00000000ffffffa6 RBX: ff110000155ac740 RCX: 1ff4000001264d89
[   84.377398][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000155ac7fc
[   84.377598][T12524] RBP: ff1100000fdb2000 R08: 1fe2200002ab5901 R09: ff11000009c40b58
[   84.377804][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.378003][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000130e2000
[   84.378203][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.378437][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.378606][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.378814][T12524] PKRU: 55555554
[   84.378913][T12524] Call Trace:
[   84.379012][T12524]  <TASK>
[   84.379080][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.379213][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.379347][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.379449][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.379587][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.379729][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.379896][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.380062][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.380198][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.380366][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.380499][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.380673][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.380847][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.381016][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.381153][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.381322][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.381487][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.381623][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.381763][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.381932][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.382065][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.382197][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.382330][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.382464][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.382598][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.382761][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.382894][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.383029][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.383161][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.383386][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.383519][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.383659][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.383797][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.384018][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.384153][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.384287][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.384426][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.384657][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.384795][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.384927][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.385065][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.385287][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.385422][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.385557][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.385702][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.385930][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.386062][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.386198][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.386333][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.386559][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.386701][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.386838][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.386973][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.387196][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.387331][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.387469][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.387635][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.387779][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.387911][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.388048][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.388181][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.388439][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.388600][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.388744][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.388878][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.389138][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.389273][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.389408][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.389631][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.389776][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.389910][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.390075][T12524] RIP: 0033:0x7fc51cbba08e
[   84.390311][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.390891][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.391094][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.391295][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.391584][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.391792][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.391994][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.394874][T12524] ------------[ cut here ]------------
| [   84.395009][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.395357][T12524] Modules linked in: ipvtap ipvlan
| [   84.396141][T12524] Tainted: [W]=WARN
[   84.396243][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.396413][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.396586][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.397164][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.397334][T12524] RAX: 00000000ffffffa6 RBX: ff110000155adc40 RCX: 1ff4000001264d89
[   84.397534][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000155adcfc
[   84.397831][T12524] RBP: ff110000130e2000 R08: 1fe2200002ab5ba1 R09: ff11000009c40b58
[   84.398031][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.398324][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000001eea000
[   84.398526][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.398771][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.399029][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.399231][T12524] PKRU: 55555554
[   84.399333][T12524] Call Trace:
[   84.399435][T12524]  <TASK>
[   84.399592][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.399735][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.399871][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.399974][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.400111][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.400335][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.400507][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.400684][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.400911][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.401082][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.401216][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.401384][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.401642][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.401824][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.401958][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.402218][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.402384][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.402519][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.402659][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.402834][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.402973][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.403106][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.403329][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.403463][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.403596][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.403755][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.403977][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.404114][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.404246][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.404378][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.404601][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.404746][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.404879][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.405013][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.405237][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.405371][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.405507][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.405640][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.405871][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.406005][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.406141][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.406273][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.406498][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.406631][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.406773][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.406908][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.407129][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.407265][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.407400][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.407539][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.407684][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.407821][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.407956][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.408091][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.408313][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.408449][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.408617][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.408763][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.408986][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.409121][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.409253][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.409418][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.409659][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.409798][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.409934][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.410103][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.410325][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.410460][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.410594][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.410841][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.410976][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.411145][T12524] RIP: 0033:0x7fc51cbba08e
[   84.411284][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.411863][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.412154][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.412355][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.412557][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.412764][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.412962][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.434104][T12524] ------------[ cut here ]------------
| [   84.434331][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   84.434771][T12524] Modules linked in: ipvtap ipvlan
| [   84.435406][T12524] Tainted: [W]=WARN
[   84.435564][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.435845][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.436111][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.436867][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.437129][T12524] RAX: 00000000ffffffa6 RBX: ff1100000d4e9000 RCX: 1ff4000001264d89
[   84.437440][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d4e90bc
[   84.437766][T12524] RBP: ff11000001eea000 R08: 1fe2200001a9d219 R09: ff11000009c40b58
[   84.438073][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   84.438379][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001351a000
[   84.438704][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   84.439071][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.439333][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   84.439646][T12524] PKRU: 55555554
[   84.439818][T12524] Call Trace:
[   84.439974][T12524]  <TASK>
[   84.440082][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.440292][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.440502][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.440672][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.440886][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.441094][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.441350][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.441604][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.441827][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.442088][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.442294][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.442554][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.442828][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.443091][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.443302][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.443564][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.443830][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.444036][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.444240][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.444504][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.444724][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.444927][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.445131][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.445337][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.445543][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.445793][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.445998][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.446203][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.446408][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.446614][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.446834][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.447042][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.447248][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.447454][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.447667][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.447879][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.448085][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.448291][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.448500][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.448715][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.448924][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.449128][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.449339][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.449544][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.449762][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.449977][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.450185][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.450394][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.450601][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.450820][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.451028][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.451234][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.451443][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.451662][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.451873][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.452078][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.452332][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.452540][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.452755][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.452967][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.453177][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.453434][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.453671][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.453884][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.454089][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.454350][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.454557][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.454777][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.454980][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.455186][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.455392][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.455647][T12524] RIP: 0033:0x7fc51cbba08e
[   84.455873][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.456608][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.456933][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.457240][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.457547][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.457866][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.458174][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.485749][T12524] ------------[ cut here ]------------
| [   84.485959][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   84.486368][T12524] Modules linked in: ipvtap ipvlan
| [   84.487006][T12524] Tainted: [W]=WARN
[   84.487162][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.487422][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.487700][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.488434][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.488709][T12524] RAX: 00000000ffffffa6 RBX: ff1100001581ac80 RCX: 1ff4000001264d89
[   84.489021][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001581ad3c
[   84.489330][T12524] RBP: ff1100001351a000 R08: 1fe2200002b035a9 R09: ff11000009c40b58
[   84.489639][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   84.489958][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000135d2000
[   84.490265][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   84.490628][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.490900][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   84.491210][T12524] PKRU: 55555554
[   84.491365][T12524] Call Trace:
[   84.491524][T12524]  <TASK>
[   84.491633][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.491854][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.492062][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.492221][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.492430][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.492641][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.492914][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.493174][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.493385][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.493647][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.493868][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.494131][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.494392][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.494676][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.494894][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.495157][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.495414][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.495621][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.495840][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.496107][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.496318][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.496525][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.496748][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.496957][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.497163][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.497407][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.497610][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.497826][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.498031][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.498236][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.498441][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.498649][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.498867][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.499076][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.499282][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.499498][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.499718][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.499921][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.500121][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.500318][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.500525][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.500738][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.500944][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.501154][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.501361][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.501575][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.501790][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.501996][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.502201][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.502404][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.502614][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.502828][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.503033][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.503243][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.503445][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.503647][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.503912][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.504122][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.504324][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.504530][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.504745][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.504999][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.505226][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.505430][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.505633][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.505910][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.506116][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.506326][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.506532][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.506750][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.506957][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.507207][T12524] RIP: 0033:0x7fc51cbba08e
[   84.507422][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.508167][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.508474][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.508791][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.509094][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.509398][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.509710][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.513419][T12524] ------------[ cut here ]------------
| [   84.513624][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   84.514042][T12524] Modules linked in: ipvtap ipvlan
| [   84.514674][T12524] Tainted: [W]=WARN
[   84.514833][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.515087][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.515350][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.516123][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.516384][T12524] RAX: 00000000ffffffa6 RBX: ff11000013984200 RCX: 1ff4000001264d89
[   84.516706][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000139842bc
[   84.517021][T12524] RBP: ff110000135d2000 R08: 1fe2200002730859 R09: ff11000009c40b58
[   84.517327][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   84.517637][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f9ea000
[   84.517960][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   84.518320][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.518590][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   84.518921][T12524] PKRU: 55555554
[   84.519079][T12524] Call Trace:
[   84.519239][T12524]  <TASK>
[   84.519347][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.519556][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.519777][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.519935][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.520146][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.520354][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.520622][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.520899][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.521114][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.521381][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.521589][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.521857][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.522122][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.522382][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.522591][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.522870][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.523129][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.523342][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.523554][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.523834][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.524045][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.524248][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.524456][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.524675][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.524890][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.525128][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.525330][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.525535][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.525752][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.525960][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.526172][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.526385][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.526590][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.526808][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.527022][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.527241][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.527456][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.527677][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.527895][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.528111][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.528331][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.528543][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.528770][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.528982][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.529195][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.529416][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.529627][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.529863][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.530079][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.530296][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.530511][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.530737][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.530952][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.531170][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.531382][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.531591][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.531867][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.532076][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.532286][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.532499][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.532720][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.532980][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.533211][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.533420][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.533628][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.533907][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.534114][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.534327][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.534535][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.534757][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.534968][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.535228][T12524] RIP: 0033:0x7fc51cbba08e
[   84.535445][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.536213][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.536530][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.536853][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.537167][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.537476][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.537796][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.541562][T12524] ------------[ cut here ]------------
| [   84.541795][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   84.542207][T12524] Modules linked in: ipvtap ipvlan
| [   84.542876][T12524] Tainted: [W]=WARN
[   84.543038][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.543310][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.543588][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.544372][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.544646][T12524] RAX: 00000000ffffffa6 RBX: ff11000016476900 RCX: 1ff4000001264d89
[   84.544976][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000164769bc
[   84.545293][T12524] RBP: ff1100000f9ea000 R08: 1fe2200002c8ed39 R09: ff11000009c40b58
[   84.545614][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   84.545942][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013992000
[   84.546271][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   84.546646][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.546923][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   84.547240][T12524] PKRU: 55555554
[   84.547399][T12524] Call Trace:
[   84.547555][T12524]  <TASK>
[   84.547673][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.547890][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.548099][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.548259][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.548471][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.548693][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.548957][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.549213][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.549426][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.549699][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.549908][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.550171][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.550431][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.550717][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.550934][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.551200][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.551463][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.551676][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.551890][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.552156][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.552366][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.552571][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.552793][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.553001][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.553208][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.553453][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.553666][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.553879][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.554086][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.554292][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.554500][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.554734][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.554950][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.555165][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.555377][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.555591][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.555814][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.556028][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.556239][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.556450][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.556677][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.556891][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.557109][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.557321][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.557535][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.557764][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.557975][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.558193][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.558410][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.558623][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.558850][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.559065][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.559282][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.559498][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.559724][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.559941][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.560207][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.560426][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.560633][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.560854][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.561061][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.561323][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.561559][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.561777][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.561985][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.562250][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.562459][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.562683][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.562889][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.563099][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.563306][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.563566][T12524] RIP: 0033:0x7fc51cbba08e
[   84.563796][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.564568][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.564896][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.565189][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.565495][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.565811][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.566124][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.568811][T12524] ------------[ cut here ]------------
| [   84.568963][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   84.569254][T12524] Modules linked in: ipvtap ipvlan
| [   84.569943][T12524] Tainted: [W]=WARN
[   84.570054][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.570241][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.570431][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.570961][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.571150][T12524] RAX: 00000000ffffffa6 RBX: ff11000016d88040 RCX: 1ff4000001264d89
[   84.571371][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016d880fc
[   84.571590][T12524] RBP: ff11000013992000 R08: 1fe2200002db1021 R09: ff11000009c40b58
[   84.571819][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   84.572040][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012dba000
[   84.572260][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   84.572517][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.572709][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   84.572930][T12524] PKRU: 55555554
[   84.573038][T12524] Call Trace:
[   84.573151][T12524]  <TASK>
[   84.573227][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.573374][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.573522][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.573637][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.573799][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.573949][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.574135][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.574321][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.574471][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.574660][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.574812][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.574997][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.575183][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.575374][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.575526][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.575718][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.575898][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.576045][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.576191][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.576379][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.576532][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.576688][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.576835][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.576984][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.577131][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.577295][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.577441][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.577592][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.577748][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.577897][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.578043][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.578192][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.578341][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.578488][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.578633][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.578795][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.578944][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.579091][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.579240][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.579386][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.579535][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.579691][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.579841][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.579986][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.580133][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.580285][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.580433][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.580582][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.580743][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.580890][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.581043][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.581192][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.581342][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.581491][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.581639][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.581797][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.581981][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.582134][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.582283][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.582433][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.582581][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.582774][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.582934][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.583082][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.583232][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.583419][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.583564][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.583731][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.583877][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.584024][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.584171][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.584354][T12524] RIP: 0033:0x7fc51cbba08e
[   84.584514][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.585049][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.585272][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.585493][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.585724][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.585943][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.586162][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.588900][T12524] ------------[ cut here ]------------
| [   84.589048][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   84.589337][T12524] Modules linked in: ipvtap ipvlan
| [   84.589794][T12524] Tainted: [W]=WARN
[   84.589903][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.590087][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.590279][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.590890][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.591076][T12524] RAX: 00000000ffffffa6 RBX: ff11000016d89380 RCX: 1ff4000001264d89
[   84.591294][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016d8943c
[   84.591515][T12524] RBP: ff11000012dba000 R08: 1fe2200002db1289 R09: ff11000009c40b58
[   84.591805][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   84.592022][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012c3a000
[   84.592243][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   84.592502][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.592765][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   84.593053][T12524] PKRU: 55555554
[   84.593161][T12524] Call Trace:
[   84.593271][T12524]  <TASK>
[   84.593348][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.593496][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.593649][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.593833][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.593979][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.594128][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.594311][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.594493][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.594642][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.594903][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.595050][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.595236][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.595420][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.595608][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.595833][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.596019][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.596200][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.596347][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.596491][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.596748][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.596894][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.597040][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.597187][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.597334][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.597481][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.597646][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.597863][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.598009][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.598153][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.598298][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.598450][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.598596][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.598812][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.598956][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.599104][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.599250][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.599399][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.599548][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.599761][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.599900][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.600037][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.600168][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.600303][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.600435][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.600570][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.600777][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.600910][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.601045][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.601179][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.601311][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.601446][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.601580][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.601786][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.601921][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.602053][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.602186][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.602351][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.602485][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.602619][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.602828][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.602962][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.603129][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.603275][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.603409][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.603542][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.603781][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.603916][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.604050][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.604184][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.604318][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.604451][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.604617][T12524] RIP: 0033:0x7fc51cbba08e
[   84.604827][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.605302][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.605502][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.605771][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.605972][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.606169][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.606367][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.610297][T12524] ------------[ cut here ]------------
| [   84.610520][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.610953][T12524] Modules linked in: ipvtap ipvlan
| [   84.611501][T12524] Tainted: [W]=WARN
[   84.611613][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.611903][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.612108][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.612628][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.612833][T12524] RAX: 00000000ffffffa6 RBX: ff1100000c70f8c0 RCX: 1ff4000001264d89
[   84.613059][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c70f97c
[   84.613355][T12524] RBP: ff11000012c3a000 R08: 1fe22000018e1f31 R09: ff11000009c40b58
[   84.613685][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.613997][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000133c2000
[   84.614264][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.614588][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.614793][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.615013][T12524] PKRU: 55555554
[   84.615124][T12524] Call Trace:
[   84.615271][T12524]  <TASK>
[   84.615378][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.615540][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.615709][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.615832][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.615985][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.616155][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.616400][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.616583][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.616747][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.616934][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.617098][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.617369][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.617572][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.617775][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.617925][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.618111][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.618291][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.618470][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.618640][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.618864][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.619068][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.619219][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.619365][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.619510][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.619661][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.619850][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.620052][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.620202][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.620344][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.620488][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.620633][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.620793][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.621001][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.621167][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.621313][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.621459][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.621605][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.621797][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.621982][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.622187][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.622403][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.622612][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.622834][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.622977][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.623173][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.623369][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.623506][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.623643][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.623793][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.623925][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.624060][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.624192][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.624337][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.624523][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.624668][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.624835][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.625083][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.625289][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.625495][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.625717][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.625862][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.626103][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.626269][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.626406][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.626542][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.626728][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.626864][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.627024][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.627219][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.627431][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.627665][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.627923][T12524] RIP: 0033:0x7fc51cbba08e
[   84.628078][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.628711][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.628935][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.629151][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.629367][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.629587][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.629893][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.641542][T12524] ------------[ cut here ]------------
| [   84.641730][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.642028][T12524] Modules linked in: ipvtap ipvlan
| [   84.642487][T12524] Tainted: [W]=WARN
[   84.642597][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.642792][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.642989][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.643510][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.643704][T12524] RAX: 00000000ffffffa6 RBX: ff11000016e61000 RCX: 1ff4000001264d89
[   84.643922][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016e610bc
[   84.644140][T12524] RBP: ff110000133c2000 R08: 1fe2200002dcc219 R09: ff11000009c40b58
[   84.644359][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.644577][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013532000
[   84.644807][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.645064][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.645252][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.645475][T12524] PKRU: 55555554
[   84.645585][T12524] Call Trace:
[   84.645704][T12524]  <TASK>
[   84.645780][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.645929][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.646076][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.646190][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.646335][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.646482][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.646678][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.646866][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.647015][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.647198][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.647347][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.647531][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.647724][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.647912][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.648060][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.648244][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.648424][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.648572][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.648730][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.648917][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.649063][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.649206][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.649351][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.649523][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.649668][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.649824][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.649974][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.650121][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.650269][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.650416][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.650561][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.650747][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.650907][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.651110][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.651296][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.651444][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.651591][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.651746][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.651894][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.652095][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.652282][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.652427][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.652574][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.652731][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.652880][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.653080][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.653261][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.653412][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.653562][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.653723][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.653872][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.654072][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.654252][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.654399][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.654546][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.654701][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.654889][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.655087][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.655297][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.655508][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.655735][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.655977][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.656172][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.656385][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.656551][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.656752][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.656901][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.657051][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.657201][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.657348][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.657541][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.657739][T12524] RIP: 0033:0x7fc51cbba08e
[   84.657960][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.658480][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.658699][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.658990][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.659205][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.659405][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.659609][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.663554][T12524] ------------[ cut here ]------------
| [   84.663703][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.663966][T12524] Modules linked in: ipvtap ipvlan
| [   84.664371][T12524] Tainted: [W]=WARN
[   84.664475][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.664642][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.664828][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.665299][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.665472][T12524] RAX: 00000000ffffffa6 RBX: ff11000016c03380 RCX: 1ff4000001264d89
[   84.665678][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016c0343c
[   84.665881][T12524] RBP: ff11000013532000 R08: 1fe2200002d80689 R09: ff11000009c40b58
[   84.666079][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.666282][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000137d2000
[   84.666485][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.666729][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.666896][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.667101][T12524] PKRU: 55555554
[   84.667200][T12524] Call Trace:
[   84.667298][T12524]  <TASK>
[   84.667367][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.667502][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.667635][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.667748][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.667883][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.668016][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.668186][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.668352][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.668486][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.668659][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.668798][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.668966][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.669136][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.669304][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.669439][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.669607][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.669783][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.669915][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.670047][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.670219][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.670353][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.670484][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.670615][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.670761][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.670892][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.671042][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.671177][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.671309][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.671441][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.671575][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.671849][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.671985][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.672117][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.672249][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.672385][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.672519][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.672717][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.672852][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.672985][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.673116][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.673250][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.673385][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.673517][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.673650][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.673857][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.674007][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.674153][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.674300][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.674446][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.674596][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.674806][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.674955][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.675102][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.675251][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.675398][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.675546][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.675793][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.675942][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.676090][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.676241][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.676387][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.676574][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.676795][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.676947][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.677092][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.677275][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.677423][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.677570][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.677778][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.677924][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.678074][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.678258][T12524] RIP: 0033:0x7fc51cbba08e
[   84.678410][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.678999][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.679222][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.679442][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.679748][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.679975][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.680191][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.690460][T12524] ------------[ cut here ]------------
| [   84.690621][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   84.690926][T12524] Modules linked in: ipvtap ipvlan
| [   84.691382][T12524] Tainted: [W]=WARN
[   84.691494][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.691691][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.691885][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.692407][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.692593][T12524] RAX: 00000000ffffffa6 RBX: ff11000014500e40 RCX: 1ff4000001264d89
[   84.692823][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000014500efc
[   84.693047][T12524] RBP: ff110000137d2000 R08: 1fe22000028a01e1 R09: ff11000009c40b58
[   84.693264][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   84.693483][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013652000
[   84.693709][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   84.693968][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.694151][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   84.694372][T12524] PKRU: 55555554
[   84.694482][T12524] Call Trace:
[   84.694590][T12524]  <TASK>
[   84.694669][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.694818][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.694965][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.695077][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.695225][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.695371][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.695555][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.695745][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.695899][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.696084][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.696232][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.696416][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.696600][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.696940][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.697092][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.697278][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.697461][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.697606][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.697894][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.698083][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.698230][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.698377][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.698525][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.698855][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.699002][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.699169][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.699318][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.699465][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.699612][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.699802][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.699950][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.700100][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.700245][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.700390][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.700539][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.700697][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.700847][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.700995][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.701144][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.701291][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.701442][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.701589][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.701746][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.701893][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.702040][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.702191][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.702341][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.702492][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.702639][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.702794][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.702943][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.703094][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.703240][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.703387][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.703537][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.703696][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.703882][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.704031][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.704182][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.704335][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.704484][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.704669][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.704833][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.704984][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.705126][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.705314][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.705458][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.705609][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.705766][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.705913][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.706061][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.706243][T12524] RIP: 0033:0x7fc51cbba08e
[   84.706396][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.706928][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.707154][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.707374][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.707598][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.707827][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.708044][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.711074][T12524] ------------[ cut here ]------------
| [   84.711229][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   84.711519][T12524] Modules linked in: ipvtap ipvlan
| [   84.711981][T12524] Tainted: [W]=WARN
[   84.712092][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.712275][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.712465][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.713000][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.713184][T12524] RAX: 00000000ffffffa6 RBX: ff11000005f18580 RCX: 1ff4000001264d89
[   84.713403][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005f1863c
[   84.713624][T12524] RBP: ff11000013652000 R08: 1fe2200000be30c9 R09: ff11000009c40b58
[   84.713853][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   84.714073][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013ada000
[   84.714293][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   84.714544][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.714746][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   84.714964][T12524] PKRU: 55555554
[   84.715074][T12524] Call Trace:
[   84.715183][T12524]  <TASK>
[   84.715257][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.715403][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.715551][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.715667][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.715822][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.715971][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.716155][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.716337][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.716487][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.716676][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.716834][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.717020][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.717209][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.717395][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.717542][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.717734][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.717918][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.718065][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.718212][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.718396][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.718546][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.718703][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.718851][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.719000][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.719149][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.719314][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.719460][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.719610][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.719766][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.719913][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.720049][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.720189][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.720326][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.720463][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.720600][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.720781][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.720923][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.721056][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.721193][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.721328][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.721464][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.721621][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.721769][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.721903][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.722036][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.722172][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.722308][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.722443][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.722578][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.722762][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.722901][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.723034][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.723172][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.723307][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.723442][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.723574][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.723749][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.723884][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.724017][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.724151][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.724285][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.724453][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.724600][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.724745][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.724877][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.725044][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.725177][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.725313][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.725459][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.725591][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.725734][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.725899][T12524] RIP: 0033:0x7fc51cbba08e
[   84.726038][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.726518][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.726732][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.726931][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.727132][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.727333][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.727544][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.730291][T12524] ------------[ cut here ]------------
| [   84.730435][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   84.731293][T12524] Modules linked in: ipvtap ipvlan
| [   84.731780][T12524] Tainted: [W]=WARN
[   84.731880][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.732044][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.732216][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.732769][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.732936][T12524] RAX: 00000000ffffffa6 RBX: ff11000017a3c580 RCX: 1ff4000001264d89
[   84.733132][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000017a3c63c
[   84.733329][T12524] RBP: ff11000013ada000 R08: 1fe2200002f478c9 R09: ff11000009c40b58
[   84.733583][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   84.733845][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013c0a000
[   84.734043][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   84.734275][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.734441][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   84.734642][T12524] PKRU: 55555554
[   84.734806][T12524] Call Trace:
[   84.734930][T12524]  <TASK>
[   84.734999][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.735132][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.735265][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.735368][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.735503][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.735639][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.735880][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.736053][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.736188][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.736356][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.736490][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.736716][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.736892][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.737059][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.737193][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.737362][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.737527][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.737721][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.737855][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.738027][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.738173][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.738329][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.738462][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.738596][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.738789][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.738940][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.739082][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.739214][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.739348][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.739480][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.739613][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.739812][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.739944][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.740077][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.740223][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.740382][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.740521][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.740717][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.740850][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.740982][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.741115][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.741249][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.741384][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.741517][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.741716][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.741853][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.741985][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.742120][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.742255][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.742387][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.742524][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.742722][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.742858][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.742996][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.743133][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.743271][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.743444][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.743576][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.743782][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.743920][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.744050][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.744214][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.744358][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.744494][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.744627][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.744863][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.744994][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.745126][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.745258][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.745391][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.745525][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.745752][T12524] RIP: 0033:0x7fc51cbba08e
[   84.745890][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.746362][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.746564][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.746822][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.747020][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.747219][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.747418][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.758119][T12524] ------------[ cut here ]------------
| [   84.758269][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.758538][T12524] Modules linked in: ipvtap ipvlan
| [   84.758966][T12524] Tainted: [W]=WARN
[   84.759069][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.759237][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.759412][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.759898][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.760065][T12524] RAX: 00000000ffffffa6 RBX: ff11000015b57540 RCX: 1ff4000001264d89
[   84.760263][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015b575fc
[   84.760462][T12524] RBP: ff11000013c0a000 R08: 1fe2200002b6aec1 R09: ff11000009c40b58
[   84.760669][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.760876][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000014852000
[   84.761075][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.761310][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.761477][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.761689][T12524] PKRU: 55555554
[   84.761789][T12524] Call Trace:
[   84.761888][T12524]  <TASK>
[   84.761958][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.762091][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.762227][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.762330][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.762463][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.762596][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.762776][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.762943][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.763076][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.763245][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.763376][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.763545][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.763726][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.763895][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.764029][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.764197][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.764360][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.764492][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.764623][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.764800][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.764932][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.765064][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.765195][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.765331][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.765462][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.765611][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.765754][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.765885][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.766015][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.766148][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.766281][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.766415][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.766547][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.766688][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.766822][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.766957][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.767091][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.767226][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.767358][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.767490][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.767626][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.767768][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.767902][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.768033][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.768168][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.768310][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.768440][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.768574][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.768728][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.768865][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.768998][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.769132][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.769266][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.769403][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.769536][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.769674][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.769844][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.769979][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.770111][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.770245][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.770381][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.770546][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.770709][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.770843][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.770977][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.771145][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.771278][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.771414][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.771548][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.771690][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.771823][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.771987][T12524] RIP: 0033:0x7fc51cbba08e
[   84.772124][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.772601][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.772815][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.773013][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.773212][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.773410][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.773607][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.777079][T12524] ------------[ cut here ]------------
| [   84.777221][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.777482][T12524] Modules linked in: ipvtap ipvlan
| [   84.777897][T12524] Tainted: [W]=WARN
[   84.777996][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.778161][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.778333][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.778817][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.778985][T12524] RAX: 00000000ffffffa6 RBX: ff11000016e2b8c0 RCX: 1ff4000001264d89
[   84.779182][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016e2b97c
[   84.779379][T12524] RBP: ff11000014852000 R08: 1fe2200002dc5731 R09: ff11000009c40b58
[   84.779578][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.779788][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013c3a000
[   84.779987][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.780220][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.780385][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.780589][T12524] PKRU: 55555554
[   84.780697][T12524] Call Trace:
[   84.780797][T12524]  <TASK>
[   84.780866][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.781001][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.781136][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.781239][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.781375][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.781512][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.781689][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.781856][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.781991][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.782156][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.782289][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.782460][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.782628][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.782804][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.782939][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.783106][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.783271][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.783404][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.783538][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.783750][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.783893][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.784026][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.784158][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.784291][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.784423][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.784576][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.784719][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.784853][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.784985][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.785118][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.785251][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.785386][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.785531][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.785667][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.785805][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.785939][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.786073][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.786206][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.786339][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.786472][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.786608][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.786752][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.786887][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.787024][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.787157][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.787293][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.787427][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.787565][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.787712][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.787850][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.787987][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.788121][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.788254][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.788388][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.788520][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.788662][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.788833][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.788967][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.789100][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.789235][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.789368][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.789533][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.789691][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.789826][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.789959][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.790126][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.790259][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.790392][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.790524][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.790661][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.790800][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.790964][T12524] RIP: 0033:0x7fc51cbba08e
[   84.791102][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.791579][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.791793][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.791992][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.792191][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.792389][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.792590][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.794880][T12524] ------------[ cut here ]------------
| [   84.795014][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.795272][T12524] Modules linked in: ipvtap ipvlan
| [   84.796423][T12524] Tainted: [W]=WARN
[   84.796526][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.796758][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.796931][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.797402][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.797570][T12524] RAX: 00000000ffffffa6 RBX: ff11000015b40c80 RCX: 1ff4000001264d89
[   84.797834][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015b40d3c
[   84.798030][T12524] RBP: ff11000013c3a000 R08: 1fe2200002b681a9 R09: ff11000009c40b58
[   84.798225][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   84.798421][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001412a000
[   84.798688][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.798919][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.799084][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.799282][T12524] PKRU: 55555554
[   84.799380][T12524] Call Trace:
[   84.799483][T12524]  <TASK>
[   84.799551][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.799749][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.799883][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.799983][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.800118][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.800251][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.800417][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.800583][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.800782][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.800948][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.801080][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.801246][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.801412][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.801582][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.801780][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.801947][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.802112][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.802244][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.802377][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.802546][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.802746][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.802878][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.803009][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.803143][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.803275][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.803424][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.803557][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.803752][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.803885][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.804017][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.804148][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.804283][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.804415][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.804547][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.804742][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.804878][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.805009][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.805141][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.805273][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.805405][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.805542][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.805737][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.805876][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.806010][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.806144][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.806280][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.806413][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.806549][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.806747][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.806883][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.807020][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.807153][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.807287][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.807421][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.807554][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.807750][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.807915][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.808050][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.808185][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.808320][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.808452][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.808621][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.808833][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.808967][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.809101][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.809268][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.809400][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.809534][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.809729][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.809861][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.809993][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.810158][T12524] RIP: 0033:0x7fc51cbba08e
[   84.810298][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.810838][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.811038][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.811275][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.811478][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.811742][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.811941][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.814318][T12524] ------------[ cut here ]------------
| [   84.814464][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/12524
| [   84.814745][T12524] Modules linked in: ipvtap ipvlan
| [   84.815155][T12524] Tainted: [W]=WARN
[   84.815256][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.815423][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.815597][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.816086][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.816254][T12524] RAX: 00000000ffffffa6 RBX: ff11000015b41e00 RCX: 1ff4000001264d89
[   84.816451][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015b41ebc
[   84.816665][T12524] RBP: ff1100001412a000 R08: 1fe2200002b683d9 R09: ff11000009c40b58
[   84.816870][T12524] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   84.817068][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013d4a000
[   84.817269][T12524] FS:  00007fc51c980840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   84.817508][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.817689][T12524] CR2: 00005559e9c93d5c CR3: 000000001c22b004 CR4: 0000000000771ef0
[   84.817892][T12524] PKRU: 55555554
[   84.817991][T12524] Call Trace:
[   84.818090][T12524]  <TASK>
[   84.818160][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.818297][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.818431][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.818533][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.818672][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.818812][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.818978][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.819142][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.819278][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.819448][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.819583][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.819764][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.819933][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.820104][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.820241][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.820411][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.820576][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.820721][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.820854][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.821023][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.821155][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.821289][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.821425][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.821559][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.821701][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.821852][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.821984][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.822117][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.822248][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.822382][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.822518][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.822657][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.822793][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.822927][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.823060][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.823194][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.823327][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.823463][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.823596][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.823738][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.823874][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.824007][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.824141][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.824272][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.824405][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.824547][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.824690][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.824825][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.824960][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.825094][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.825228][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.825362][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.825499][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.825634][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.825778][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.825911][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.826075][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.826211][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.826344][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.826491][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.826625][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.826804][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.826948][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.827082][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.827215][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.827382][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.827518][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.827658][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.827794][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.827927][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.828060][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.828225][T12524] RIP: 0033:0x7fc51cbba08e
[   84.828364][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.828851][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.829053][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.829253][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.829456][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.829661][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.829864][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.842044][T12524] ------------[ cut here ]------------
| [   84.842184][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/12524
| [   84.842447][T12524] Modules linked in: ipvtap ipvlan
| [   84.842870][T12524] Tainted: [W]=WARN
[   84.842970][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.843141][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.843315][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.843807][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.843979][T12524] RAX: 00000000ffffffa6 RBX: ff11000014507540 RCX: 1ff4000001264d89
[   84.844178][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000145075fc
[   84.844379][T12524] RBP: ff11000013d4a000 R08: 1fe22000028a0ec1 R09: ff11000009c40b58
[   84.844579][T12524] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   84.844792][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001535a000
[   84.844997][T12524] FS:  00007fc51c980840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   84.845231][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.845399][T12524] CR2: 00005559e9c93d5c CR3: 000000001c22b004 CR4: 0000000000771ef0
[   84.845600][T12524] PKRU: 55555554
[   84.845711][T12524] Call Trace:
[   84.845816][T12524]  <TASK>
[   84.845885][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.846021][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.846156][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.846261][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.846395][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.846530][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.846712][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.846878][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.847014][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.847181][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.847314][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.847480][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.847648][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.847830][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.847965][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.848133][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.848298][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.848429][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.848561][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.848740][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.848877][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.849009][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.849141][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.849274][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.849405][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.849557][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.849698][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.849833][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.849965][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.850097][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.850229][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.850363][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.850495][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.850628][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.850774][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.850910][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.851042][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.851174][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.851307][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.851438][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.851574][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.851718][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.851854][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.851987][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.852123][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.852259][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.852394][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.852529][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.852668][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.852808][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.852946][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.853081][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.853217][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.853351][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.853483][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.853617][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.853794][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.853933][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.854068][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.854204][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.854338][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.854502][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.854648][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.854793][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.854928][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.855096][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.855230][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.855365][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.855498][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.855631][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.855776][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.855943][T12524] RIP: 0033:0x7fc51cbba08e
[   84.856085][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.856558][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.856770][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.856971][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.857169][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.857369][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.857568][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.860857][T12524] ------------[ cut here ]------------
| [   84.860994][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/12524
| [   84.861258][T12524] Modules linked in: ipvtap ipvlan
| [   84.861666][T12524] Tainted: [W]=WARN
[   84.861773][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.861941][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.862112][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.862586][T12524] RSP: 0018:ffa0000009326e18 EFLAGS: 00010286
[   84.862770][T12524] RAX: 00000000ffffffa6 RBX: ff1100001ab9c200 RCX: 1ff4000001264d89
[   84.862968][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001ab9c2bc
[   84.863169][T12524] RBP: ff1100001535a000 R08: 1fe2200003573859 R09: ff11000009c40b58
[   84.863366][T12524] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   84.863564][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: ffa0000009326eb0
[   84.863775][T12524] FS:  00007fc51c980840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   84.864010][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.864176][T12524] CR2: 00005559e9c93d5c CR3: 000000001c22b004 CR4: 0000000000771ef0
[   84.864376][T12524] PKRU: 55555554
[   84.864475][T12524] Call Trace:
[   84.864574][T12524]  <TASK>
[   84.864643][T12524]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   84.864787][T12524]  ? notifier_call_chain (kernel/notifier.c:85)
[   84.864922][T12524]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   84.865024][T12524]  netif_close_many (net/core/dev.c:1804)
[   84.865161][T12524]  ? __dev_close_many (net/core/dev.c:1781)
[   84.865293][T12524]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   84.865459][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   84.865624][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.865769][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.865938][T12524]  ? netdev_upper_dev_unlink (net/core/dev.c:9054)
[   84.866074][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.866240][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.866408][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.866577][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.866728][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.866898][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.867064][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.867196][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.867328][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.867498][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.867632][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.867776][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.867912][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.868043][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.868175][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.868327][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.868462][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.868595][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.868734][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.868869][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.869005][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.869139][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.869271][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.869403][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.869535][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.869675][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.869816][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.869952][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.870084][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.870216][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.870349][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.870481][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.870620][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.870764][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.870898][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.871036][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.871171][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.871307][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.871441][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.871574][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.871721][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.871856][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.871992][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.872126][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.872258][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.872391][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.872556][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.872700][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.872833][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.872969][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.873102][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.873267][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.873411][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.873544][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.873687][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.873857][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.873994][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.874129][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.874262][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.874395][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.874529][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.874709][T12524] RIP: 0033:0x7fc51cbba08e
[   84.874848][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.875330][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.875531][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.875737][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.875939][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.876136][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.876336][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.882063][T12524] ------------[ cut here ]------------
| [   84.882202][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/12524
| [   84.882458][T12524] Modules linked in: ipvtap ipvlan
| [   84.882865][T12524] Tainted: [W]=WARN
[   84.882962][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.883123][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.883290][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.883760][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   84.883921][T12524] RAX: 00000000ffffffa6 RBX: ff1100001588e040 RCX: 1ff4000001264daf
[   84.884113][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001588e0fc
[   84.884305][T12524] RBP: ff1100000fef2000 R08: 1fe2200002b11c21 R09: ff11000009c40b58
[   84.884501][T12524] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   84.884699][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   84.884892][T12524] FS:  00007fc51c980840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   84.885117][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.885281][T12524] CR2: 00005559e9c93d5c CR3: 000000001c22b004 CR4: 0000000000771ef0
[   84.885474][T12524] PKRU: 55555554
[   84.885574][T12524] Call Trace:
[   84.885676][T12524]  <TASK>
[   84.885747][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   84.885910][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.886072][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.886234][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.886399][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.886564][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.886702][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.886865][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.887024][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.887154][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.887287][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.887452][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.887583][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.887723][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.887852][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.887982][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.888110][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.888258][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.888389][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.888520][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.888649][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.888788][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.888918][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.889048][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.889175][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.889306][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.889434][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.889564][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.890420][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.890551][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.890742][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.890869][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.890998][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.891126][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.891256][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.891383][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.891513][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.891643][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.891837][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.891969][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.892099][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.892229][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.892359][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.892487][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.892615][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.892806][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.892936][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.893063][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.893222][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.893352][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.893480][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.893610][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.893801][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.893960][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.894104][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.894235][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.894362][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.894522][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.894713][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.894845][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.894973][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.895101][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.895232][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.895394][T12524] RIP: 0033:0x7fc51cbba08e
[   84.895529][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.896057][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.896252][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.896443][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.896634][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.896894][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.897087][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.907144][T12524] ------------[ cut here ]------------
| [   84.907286][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.907552][T12524] Modules linked in: ipvtap ipvlan
| [   84.907958][T12524] Tainted: [W]=WARN
[   84.908056][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.908217][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.908387][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.908945][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   84.909194][T12524] RAX: 00000000ffffffa6 RBX: ff1100001588ee40 RCX: 1ff4000001264daf
[   84.909385][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001588eefc
[   84.909584][T12524] RBP: ff1100000e56a000 R08: 1fe2200002b11de1 R09: ff11000009c40b58
[   84.909880][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   84.910070][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   84.910262][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.910488][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.910648][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.910973][T12524] PKRU: 55555554
[   84.911070][T12524] Call Trace:
[   84.911165][T12524]  <TASK>
[   84.911231][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   84.911397][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.911559][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.911835][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.911998][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.912161][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.912293][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.912458][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.912620][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.912861][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.912990][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.913153][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.913282][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.913411][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.913538][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.913784][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.913912][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.914056][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.914184][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.914312][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.914439][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.914568][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.914811][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.914941][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.915068][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.915197][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.915325][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.915453][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.915582][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.915817][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.915949][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.916076][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.916204][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.916332][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.916461][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.916588][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.916725][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.916857][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.916986][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.917117][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.917247][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.917375][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.917505][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.917636][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.917777][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.917910][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.918041][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.918170][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.918329][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.918458][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.918587][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.918732][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.918861][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.919021][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.919161][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.919291][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.919418][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.919581][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.919722][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.919854][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.919982][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.920111][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.920237][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.920397][T12524] RIP: 0033:0x7fc51cbba08e
[   84.920533][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.921001][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.921195][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.921387][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.921579][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.921788][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.921982][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.926366][T12524] ------------[ cut here ]------------
| [   84.926503][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   84.926774][T12524] Modules linked in: ipvtap ipvlan
| [   84.927163][T12524] Tainted: [W]=WARN
[   84.927260][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.927421][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.927587][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.928841][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   84.929002][T12524] RAX: 00000000ffffffa6 RBX: ff1100001654a200 RCX: 1ff4000001264daf
[   84.929192][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001654a2bc
[   84.929381][T12524] RBP: ff1100000e4ba000 R08: 1fe2200002ca9459 R09: ff11000009c40b58
[   84.929579][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   84.929828][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   84.930018][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   84.930240][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.930400][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   84.930595][T12524] PKRU: 55555554
[   84.930748][T12524] Call Trace:
[   84.930899][T12524]  <TASK>
[   84.930967][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   84.931132][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.931294][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.931453][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.931618][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.931840][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.931970][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.932131][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.932288][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.932415][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.932542][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.932771][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.932900][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.933027][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.933153][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.933283][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.933409][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.933554][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.933742][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.933869][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.933996][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.934123][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.934250][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.934378][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.934506][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.934636][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.934824][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.934953][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.935081][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.935210][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.935339][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.935465][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.935595][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.935783][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.935911][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.936040][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.936167][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.936298][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.936424][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.936555][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.936746][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.936877][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.937005][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.937134][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.937262][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.937390][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.937518][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.937645][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.937867][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.937996][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.938125][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.938253][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.938380][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.938538][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.938736][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.938867][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.938993][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.939153][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.939281][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.939411][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.939539][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.939726][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.939853][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.940012][T12524] RIP: 0033:0x7fc51cbba08e
[   84.940146][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.940600][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.940861][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.941051][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.941265][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.941455][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.941648][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.946002][T12524] ------------[ cut here ]------------
| [   84.946149][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   84.946409][T12524] Modules linked in: ipvtap ipvlan
| [   84.946821][T12524] Tainted: [W]=WARN
[   84.946919][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.947078][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.947248][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.947717][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   84.947886][T12524] RAX: 00000000ffffffa6 RBX: ff11000016db8580 RCX: 1ff4000001264daf
[   84.948078][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016db863c
[   84.948268][T12524] RBP: ff1100000e8ca000 R08: 1fe2200002db70c9 R09: ff11000009c40b58
[   84.948462][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   84.948659][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   84.948858][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   84.949082][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.949243][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   84.949436][T12524] PKRU: 55555554
[   84.949532][T12524] Call Trace:
[   84.949630][T12524]  <TASK>
[   84.949701][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   84.949868][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.950029][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.950193][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.950357][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.950523][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.950660][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.950830][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.950988][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.951115][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.951243][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.951406][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.951536][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.951667][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.951801][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.951929][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.952056][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.952202][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.952332][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.952460][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.952588][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.952726][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.952856][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.952987][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.953114][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.953242][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.953372][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.953504][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.953634][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.953778][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.953907][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.954034][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.954165][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.954293][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.954422][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.954552][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.954694][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.954828][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.954956][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.955087][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.955216][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.955346][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.955477][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.955609][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.955754][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.955885][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.956014][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.956144][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.956304][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.956433][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.956561][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.956700][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.956829][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.956987][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.957127][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.957257][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.957385][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.957547][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.957687][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.957818][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.957946][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.958075][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.958202][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.958364][T12524] RIP: 0033:0x7fc51cbba08e
[   84.958498][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.958969][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.959165][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.959357][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.959550][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.959752][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.959943][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   84.972335][T12524] ------------[ cut here ]------------
| [   84.972473][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   84.972733][T12524] Modules linked in: ipvtap ipvlan
| [   84.973128][T12524] Tainted: [W]=WARN
[   84.973224][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.973384][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   84.973553][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   84.974027][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   84.974191][T12524] RAX: 00000000ffffffa6 RBX: ff11000016db98c0 RCX: 1ff4000001264daf
[   84.974382][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016db997c
[   84.974573][T12524] RBP: ff1100000feba000 R08: 1fe2200002db7331 R09: ff11000009c40b58
[   84.974774][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   84.974966][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   84.975157][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   84.975383][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.975543][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   84.976239][T12524] PKRU: 55555554
[   84.976338][T12524] Call Trace:
[   84.976433][T12524]  <TASK>
[   84.976499][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   84.976723][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.976900][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   84.977067][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   84.977227][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   84.977393][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   84.977526][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   84.977699][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   84.977859][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   84.977988][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   84.978115][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   84.978278][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   84.978410][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.978538][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.978674][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.978808][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.978937][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.979084][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.979212][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.979342][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   84.979471][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.979598][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.979733][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   84.979864][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.979991][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.980119][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.980250][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   84.980384][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   84.980513][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   84.980642][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.980781][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.980910][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.981040][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   84.981167][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   84.981294][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   84.981425][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.981554][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.981695][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.981824][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.981953][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.982082][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.982212][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   84.982342][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   84.982471][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   84.982602][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   84.982747][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   84.982874][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   84.983003][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   84.983162][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   84.983294][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.983423][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   84.983553][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   84.983689][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   84.983850][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   84.983995][T12524]  __sys_sendmsg (net/socket.c:2784)
[   84.984124][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   84.984252][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   84.984415][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.984543][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   84.984678][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   84.984811][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   84.984939][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   84.985072][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.985236][T12524] RIP: 0033:0x7fc51cbba08e
[   84.985374][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.985846][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.986040][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   84.986234][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   84.986424][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   84.986615][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   84.986817][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.000678][T12524] ------------[ cut here ]------------
| [   85.000831][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   85.001112][T12524] Modules linked in: ipvtap ipvlan
| [   85.001528][T12524] Tainted: [W]=WARN
[   85.001630][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.001810][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.001987][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.002447][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.002607][T12524] RAX: 00000000ffffffa6 RBX: ff110000149b2580 RCX: 1ff4000001264daf
[   85.003249][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000149b263c
[   85.003441][T12524] RBP: ff1100000f392000 R08: 1fe22000029364c9 R09: ff11000009c40b58
[   85.003631][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   85.003839][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.004032][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   85.004254][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.004416][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   85.004607][T12524] PKRU: 55555554
[   85.004715][T12524] Call Trace:
[   85.004810][T12524]  <TASK>
[   85.004876][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.005039][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.005200][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.005361][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.005522][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.005693][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.005824][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.005987][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.006147][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.006276][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.006405][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.006569][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.006710][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.006837][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.006967][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.007095][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.007224][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.007373][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.007502][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.007630][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.007766][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.007894][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.008021][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.008151][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.008280][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.008407][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.008535][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.008668][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.008801][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.008930][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.009057][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.009184][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.009315][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.009442][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.009570][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.009704][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.009832][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.009963][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.010089][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.010219][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.010351][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.010480][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.010609][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.010752][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.010882][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.011011][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.011140][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.011270][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.011428][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.011556][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.011695][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.011849][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.011976][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.012135][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.012278][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.012407][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.012533][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.012711][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.012839][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.012970][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.013098][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.013227][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.013357][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.013515][T12524] RIP: 0033:0x7fc51cbba08e
[   85.013648][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.014116][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.014311][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.014503][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.014706][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.014897][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.015091][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.019592][T12524] ------------[ cut here ]------------
| [   85.019740][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   85.019993][T12524] Modules linked in: ipvtap ipvlan
| [   85.020382][T12524] Tainted: [W]=WARN
[   85.020479][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.020640][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.020817][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.021271][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.021430][T12524] RAX: 00000000ffffffa6 RBX: ff110000149b38c0 RCX: 1ff4000001264daf
[   85.021621][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000149b397c
[   85.021820][T12524] RBP: ff110000105c2000 R08: 1fe2200002936731 R09: ff11000009c40b58
[   85.022010][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   85.022199][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.022393][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   85.022616][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.023485][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   85.023742][T12524] PKRU: 55555554
[   85.023839][T12524] Call Trace:
[   85.023989][T12524]  <TASK>
[   85.024056][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.024219][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.024380][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.024540][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.024762][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.024925][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.025056][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.025217][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.025375][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.025503][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.025631][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.025855][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.025984][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.026113][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.026240][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.026369][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.026497][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.026643][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.026830][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.026958][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.027084][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.027215][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.027342][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.027473][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.027600][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.027786][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.027915][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.028044][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.028173][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.028301][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.028429][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.028557][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.028745][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.028874][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.029002][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.029129][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.029260][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.029391][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.029519][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.029649][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.029837][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.029964][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.030092][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.030224][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.030355][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.030485][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.030614][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.030803][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.030959][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.031088][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.031217][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.031346][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.031473][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.031631][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.031838][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.031966][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.032093][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.032255][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.032382][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.032510][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.032638][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.032824][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.032953][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.033109][T12524] RIP: 0033:0x7fc51cbba08e
[   85.033241][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.033758][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.033950][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.034140][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.034334][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.034523][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.034773][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.048198][T12524] ------------[ cut here ]------------
| [   85.048342][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   85.048603][T12524] Modules linked in: ipvtap ipvlan
| [   85.049045][T12524] Tainted: [W]=WARN
[   85.049144][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.049314][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.049480][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.049949][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.050114][T12524] RAX: 00000000ffffffa6 RBX: ff11000015c58740 RCX: 1ff4000001264daf
[   85.050308][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015c587fc
[   85.050500][T12524] RBP: ff1100000d7fa000 R08: 1fe2200002b8b101 R09: ff11000009c40b58
[   85.050702][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   85.050893][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.051092][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   85.051318][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.051476][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   85.051678][T12524] PKRU: 55555554
[   85.051780][T12524] Call Trace:
[   85.051877][T12524]  <TASK>
[   85.051946][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.052111][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.052276][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.052438][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.052601][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.052774][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.052907][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.053072][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.053234][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.053365][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.053494][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.053666][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.053803][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.053932][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.054063][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.054193][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.054324][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.054473][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.054605][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.054743][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.054874][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.055006][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.055136][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.055267][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.055397][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.055526][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.055662][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.055797][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.055931][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.056061][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.056191][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.056319][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.056451][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.056578][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.056719][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.056849][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.056983][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.057118][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.057248][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.057379][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.057511][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.057642][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.057786][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.057918][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.058052][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.058183][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.058314][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.058444][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.058607][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.058749][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.058880][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.059013][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.059143][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.059305][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.059449][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.059579][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.059717][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.059884][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.060016][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.060147][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.060277][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.060407][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.060540][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.060712][T12524] RIP: 0033:0x7fc51cbba08e
[   85.060848][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.061317][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.061516][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.061721][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.061919][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.062114][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.062308][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.066475][T12524] ------------[ cut here ]------------
| [   85.066611][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   85.066898][T12524] Modules linked in: ipvtap ipvlan
| [   85.067299][T12524] Tainted: [W]=WARN
[   85.067397][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.067561][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.067742][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.068214][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.068378][T12524] RAX: 00000000ffffffa6 RBX: ff11000015c59c40 RCX: 1ff4000001264daf
[   85.068570][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015c59cfc
[   85.068779][T12524] RBP: ff1100000f2a2000 R08: 1fe2200002b8b3a1 R09: ff11000009c40b58
[   85.068973][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   85.069168][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.069366][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   85.069592][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.069768][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   85.069963][T12524] PKRU: 55555554
[   85.070059][T12524] Call Trace:
[   85.070157][T12524]  <TASK>
[   85.070224][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.070389][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.070555][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.070729][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.070899][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.071065][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.071199][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.071365][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.071527][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.071662][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.071798][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.071967][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.072099][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.072228][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.072356][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.072486][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.072617][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.072777][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.072908][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.073038][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.073168][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.073298][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.073429][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.073561][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.073699][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.073829][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.073960][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.074093][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.074224][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.074356][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.074487][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.074617][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.074763][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.074893][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.075024][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.075154][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.075283][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.075418][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.075545][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.075688][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.075818][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.075948][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.076078][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.076207][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.076339][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.076468][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.076597][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.076733][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.076892][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.077021][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.077150][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.077280][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.077411][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.077575][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.077727][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.077860][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.077995][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.078162][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.078295][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.078429][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.078561][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.078703][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.078832][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.078990][T12524] RIP: 0033:0x7fc51cbba08e
[   85.079123][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.079582][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.079787][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.079980][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.080173][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.080366][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.080561][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.086791][T12524] ------------[ cut here ]------------
| [   85.086947][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   85.087204][T12524] Modules linked in: ipvtap ipvlan
| [   85.087599][T12524] Tainted: [W]=WARN
[   85.087706][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.087870][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.088038][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.088497][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.088820][T12524] RAX: 00000000ffffffa6 RBX: ff110000150da040 RCX: 1ff4000001264daf
[   85.089014][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000150da0fc
[   85.089205][T12524] RBP: ff11000012baa000 R08: 1fe2200002a1b421 R09: ff11000009c40b58
[   85.089398][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   85.089590][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.089854][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   85.090083][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.090246][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   85.090440][T12524] PKRU: 55555554
[   85.090536][T12524] Call Trace:
[   85.090633][T12524]  <TASK>
[   85.090844][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.091010][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.091175][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.091337][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.091500][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.091791][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.091926][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.092094][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.092253][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.092382][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.092516][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.092778][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.092908][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.093039][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.093166][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.093296][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.093424][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.093572][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.093765][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.093895][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.094025][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.094153][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.094283][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.094414][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.094541][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.094729][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.094859][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.094991][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.095120][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.095249][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.095378][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.095506][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.095638][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.095825][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.095955][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.096086][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.096215][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.096348][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.096475][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.096605][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.096798][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.096928][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.097060][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.097193][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.097325][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.097455][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.097586][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.097775][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.097934][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.098064][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.098194][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.098324][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.098453][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.098613][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.098812][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.098942][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.099069][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.099233][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.099361][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.099491][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.099621][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.099808][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.099937][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.100095][T12524] RIP: 0033:0x7fc51cbba08e
[   85.100229][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.100755][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.100950][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.101144][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.101337][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.101530][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.101786][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.118233][T12524] ------------[ cut here ]------------
| [   85.118422][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/12524
| [   85.118753][T12524] Modules linked in: ipvtap ipvlan
| [   85.119249][T12524] Tainted: [W]=WARN
[   85.119394][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.119605][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.119860][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.120376][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.120590][T12524] RAX: 00000000ffffffa6 RBX: ff110000150db1c0 RCX: 1ff4000001264daf
[   85.120852][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000150db27c
[   85.121094][T12524] RBP: ff11000012cb2000 R08: 1fe2200002a1b651 R09: ff11000009c40b58
[   85.121341][T12524] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.121585][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.121847][T12524] FS:  00007fc51c980840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.122127][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.122341][T12524] CR2: 00007f10664ec8f4 CR3: 000000001c22b001 CR4: 0000000000771ef0
[   85.122589][T12524] PKRU: 55555554
[   85.122788][T12524] Call Trace:
[   85.122931][T12524]  <TASK>
[   85.123050][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.123270][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.123481][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.123712][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.123927][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.124145][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.124330][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.124547][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.124771][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.124951][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.125126][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.125339][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.125521][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.125719][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.125897][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.126081][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.126259][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.126454][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.126630][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.126831][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.127007][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.127182][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.127361][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.127540][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.127736][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.127913][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.128091][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.128272][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.128449][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.128626][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.128822][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.129003][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.129181][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.129358][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.129542][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.129741][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.129919][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.130101][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.130275][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.130454][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.130633][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.130831][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.131016][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.131195][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.131379][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.131563][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.131772][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.131952][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.132158][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.132338][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.132517][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.132714][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.132893][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.133101][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.133294][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.133474][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.133669][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.133887][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.134063][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.134243][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.134419][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.134594][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.134792][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.135001][T12524] RIP: 0033:0x7fc51cbba08e
[   85.135185][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.135706][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.135948][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.136190][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.136428][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.136688][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.136928][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.141328][T12524] ------------[ cut here ]------------
| [   85.141519][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/12524
| [   85.141860][T12524] Modules linked in: ipvtap ipvlan
| [   85.142345][T12524] Tainted: [W]=WARN
[   85.142488][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.142714][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.142937][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.143446][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.143669][T12524] RAX: 00000000ffffffa6 RBX: ff1100001654a040 RCX: 1ff4000001264daf
[   85.143912][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001654a0fc
[   85.144152][T12524] RBP: ff11000012dc2000 R08: 1fe2200002ca9421 R09: ff11000009c40b58
[   85.144388][T12524] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.144630][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.145424][T12524] FS:  00007fc51c980840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.145891][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.146212][T12524] CR2: 00007f10664ec8f4 CR3: 000000001c22b001 CR4: 0000000000771ef0
[   85.146540][T12524] PKRU: 55555554
[   85.146757][T12524] Call Trace:
[   85.146955][T12524]  <TASK>
[   85.147123][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.147392][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.147678][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.147954][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.148217][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.148483][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.148739][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.149010][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.149277][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.149508][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.149760][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.150030][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.150264][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.150494][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.150745][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.150983][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.151216][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.151465][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.151716][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.151949][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.152179][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.152409][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.152637][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.152893][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.153123][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.153354][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.153584][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.153828][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.154060][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.154290][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.154524][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.154773][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.155007][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.155239][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.155468][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.155722][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.155953][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.156185][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.156419][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.156727][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.156960][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.157193][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.157426][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.157694][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.157960][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.158227][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.158519][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.158825][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.159143][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.159430][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.159738][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.160026][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.160253][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.160459][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.160664][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.160853][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.161030][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.161240][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.161416][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.161599][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.161802][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.161980][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.162158][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.162366][T12524] RIP: 0033:0x7fc51cbba08e
[   85.162548][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.163100][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.163373][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.163611][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.163876][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.164118][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.164359][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.169262][T12524] ------------[ cut here ]------------
| [   85.169435][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/12524
| [   85.169758][T12524] Modules linked in: ipvtap ipvlan
| [   85.170247][T12524] Tainted: [W]=WARN
[   85.170407][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.170615][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.170847][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.171351][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.171562][T12524] RAX: 00000000ffffffa6 RBX: ff11000012978580 RCX: 1ff4000001264daf
[   85.172345][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001297863c
[   85.172666][T12524] RBP: ff1100000fdb2000 R08: 1fe220000252f0c9 R09: ff11000009c40b58
[   85.172971][T12524] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.173264][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.173559][T12524] FS:  00007fc51c980840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.173919][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.174182][T12524] CR2: 00007f10664ec8f4 CR3: 000000001c22b001 CR4: 0000000000771ef0
[   85.174484][T12524] PKRU: 55555554
[   85.174704][T12524] Call Trace:
[   85.174914][T12524]  <TASK>
[   85.175083][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.175350][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.175614][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.175908][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.176186][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.176452][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.176709][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.176977][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.177238][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.177469][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.177725][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.177997][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.178231][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.178462][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.178719][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.178955][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.179201][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.179450][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.179708][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.179940][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.180429][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.180674][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.180916][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.181149][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.181380][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.181611][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.181880][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.182114][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.182345][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.182577][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.182828][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.183059][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.183304][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.183538][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.183791][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.184024][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.184256][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.184523][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.184801][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.185085][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.185277][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.185456][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.185637][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.185837][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.186015][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.186193][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.186372][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.186548][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.186794][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.186987][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.187166][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.187347][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.187523][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.187754][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.187944][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.188125][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.188299][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.188509][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.188706][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.188883][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.189059][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.189236][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.189416][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.189630][T12524] RIP: 0033:0x7fc51cbba08e
[   85.189834][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.190337][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.190580][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.190833][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.191071][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.191309][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.191548][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.204417][T12524] ------------[ cut here ]------------
| [   85.204590][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/12524
| [   85.204923][T12524] Modules linked in: ipvtap ipvlan
| [   85.205411][T12524] Tainted: [W]=WARN
[   85.205556][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.205950][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.206168][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.206694][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.206902][T12524] RAX: 00000000ffffffa6 RBX: ff1100001404d8c0 RCX: 1ff4000001264daf
[   85.207146][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001404d97c
[   85.207383][T12524] RBP: ff110000130e2000 R08: 1fe2200002809b31 R09: ff11000009c40b58
[   85.207621][T12524] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.207877][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.208123][T12524] FS:  00007fc51c980840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.208399][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.208609][T12524] CR2: 00007f10664ec8f4 CR3: 000000001c22b001 CR4: 0000000000771ef0
[   85.208877][T12524] PKRU: 55555554
[   85.209021][T12524] Call Trace:
[   85.209166][T12524]  <TASK>
[   85.209281][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.209497][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.209729][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.209940][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.210152][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.210363][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.210542][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.210775][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.210992][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.211168][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.211343][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.211555][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.211755][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.211931][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.212111][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.212288][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.212462][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.212669][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.212853][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.213029][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.213203][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.213380][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.213562][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.213764][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.213939][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.214116][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.214295][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.214473][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.214663][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.214851][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.215027][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.215204][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.215382][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.215557][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.215757][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.215934][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.216111][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.216294][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.216470][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.216669][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.216854][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.217032][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.217209][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.217387][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.217570][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.217771][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.217949][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.218126][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.218334][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.218512][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.218709][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.218892][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.219068][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.219276][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.219466][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.219643][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.219841][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.220052][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.220233][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.220413][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.220589][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.220786][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.220963][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.221171][T12524] RIP: 0033:0x7fc51cbba08e
[   85.221354][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.221883][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.222123][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.222362][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.222604][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.222864][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.223101][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.228400][T12524] ------------[ cut here ]------------
| [   85.228578][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/12524
| [   85.228896][T12524] Modules linked in: ipvtap ipvlan
| [   85.229389][T12524] Tainted: [W]=WARN
[   85.229533][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.230479][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.230769][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.231334][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.231598][T12524] RAX: 00000000ffffffa6 RBX: ff110000091a2ac0 RCX: 1ff4000001264daf
[   85.231917][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000091a2b7c
[   85.232211][T12524] RBP: ff11000001eea000 R08: 1fe2200001234571 R09: ff11000009c40b58
[   85.232507][T12524] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.232824][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.233120][T12524] FS:  00007fc51c980840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.233448][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.233737][T12524] CR2: 00007f10664ec8f4 CR3: 000000001c22b001 CR4: 0000000000771ef0
[   85.234034][T12524] PKRU: 55555554
[   85.234230][T12524] Call Trace:
[   85.234430][T12524]  <TASK>
[   85.234598][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.234895][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.235162][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.235425][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.235721][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.235986][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.236222][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.236487][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.236766][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.237004][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.237238][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.237506][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.237758][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.237994][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.238225][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.238456][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.238709][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.238961][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.239194][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.239425][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.239671][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.239910][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.240141][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.240373][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.240603][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.240859][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.241091][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.241322][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.241584][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.241849][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.242022][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.242199][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.242380][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.242561][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.242762][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.242942][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.243120][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.243302][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.243477][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.243670][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.243861][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.244039][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.244219][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.244397][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.244576][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.244774][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.244952][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.245129][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.245342][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.245523][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.245721][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.245901][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.246077][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.246285][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.246479][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.246669][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.246852][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.247061][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.247237][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.247416][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.247594][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.247791][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.247975][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.248182][T12524] RIP: 0033:0x7fc51cbba08e
[   85.248368][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.248896][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.249142][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.249386][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.249627][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.249886][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.250130][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.263426][T12524] ------------[ cut here ]------------
| [   85.263607][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/12524
| [   85.263930][T12524] Modules linked in: ipvtap ipvlan
| [   85.264414][T12524] Tainted: [W]=WARN
[   85.264563][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.264798][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.265012][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.265513][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.265738][T12524] RAX: 00000000ffffffa6 RBX: ff110000091a38c0 RCX: 1ff4000001264daf
[   85.265978][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000091a397c
[   85.266216][T12524] RBP: ff1100001351a000 R08: 1fe2200001234731 R09: ff11000009c40b58
[   85.266452][T12524] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.266707][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.266950][T12524] FS:  00007fc51c980840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.267221][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.267430][T12524] CR2: 00007f10664ec8f4 CR3: 000000001c22b001 CR4: 0000000000771ef0
[   85.267690][T12524] PKRU: 55555554
[   85.267834][T12524] Call Trace:
[   85.267980][T12524]  <TASK>
[   85.268094][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.268307][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.268515][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.268741][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.268952][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.269161][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.269345][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.269555][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.269781][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.269960][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.270136][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.270350][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.270529][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.270727][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.270909][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.271089][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.271264][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.271459][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.271634][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.271835][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.272014][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.272195][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.272372][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.272550][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.272738][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.272916][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.273096][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.273275][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.273456][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.273727][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.273942][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.274129][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.274310][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.274485][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.274675][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.274858][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.275038][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.275220][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.275394][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.275571][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.275769][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.275948][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.276126][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.276307][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.276485][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.276675][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.276860][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.277035][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.277241][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.277419][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.277599][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.277799][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.277976][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.278185][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.278375][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.278552][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.278740][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.278971][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.279148][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.279328][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.279505][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.279702][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.279883][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.280090][T12524] RIP: 0033:0x7fc51cbba08e
[   85.280274][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.280804][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.281044][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.281283][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.281525][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.281788][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.282029][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.286507][T12524] ------------[ cut here ]------------
| [   85.286958][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/12524
| [   85.287256][T12524] Modules linked in: ipvtap ipvlan
| [   85.287768][T12524] Tainted: [W]=WARN
[   85.287913][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.288120][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.288335][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.288861][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.289071][T12524] RAX: 00000000ffffffa6 RBX: ff11000012979380 RCX: 1ff4000001264daf
[   85.289306][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001297943c
[   85.289548][T12524] RBP: ff110000135d2000 R08: 1fe220000252f289 R09: ff11000009c40b58
[   85.289800][T12524] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.290038][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.290293][T12524] FS:  00007fc51c980840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.290567][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.290803][T12524] CR2: 00007f10664ec8f4 CR3: 000000001c22b001 CR4: 0000000000771ef0
[   85.291044][T12524] PKRU: 55555554
[   85.291188][T12524] Call Trace:
[   85.291345][T12524]  <TASK>
[   85.291459][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.291694][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.291906][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.292120][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.292330][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.292542][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.292742][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.292954][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.293166][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.293348][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.293525][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.293760][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.293940][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.294113][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.294288][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.294464][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.294640][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.294857][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.295034][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.295211][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.295387][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.295564][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.295763][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.295940][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.296118][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.296296][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.296475][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.296666][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.296850][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.297027][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.297203][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.297381][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.297561][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.297757][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.297938][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.298115][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.298293][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.298475][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.298665][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.298887][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.299069][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.299245][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.299421][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.299601][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.299802][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.299981][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.300159][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.300338][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.300549][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.300741][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.300919][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.301097][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.301273][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.301487][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.301697][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.301875][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.302051][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.302262][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.302438][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.302616][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.302808][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.302987][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.303164][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.303371][T12524] RIP: 0033:0x7fc51cbba08e
[   85.303552][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.304082][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.304323][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.304562][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.304825][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.305068][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.305308][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.309762][T12524] ------------[ cut here ]------------
| [   85.309941][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/12524
| [   85.310240][T12524] Modules linked in: ipvtap ipvlan
| [   85.311356][T12524] Tainted: [W]=WARN
[   85.311636][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.311916][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.312189][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.312765][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.313066][T12524] RAX: 00000000ffffffa6 RBX: ff11000009906ac0 RCX: 1ff4000001264daf
[   85.313354][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009906b7c
[   85.313643][T12524] RBP: ff1100000f9ea000 R08: 1fe2200001320d71 R09: ff11000009c40b58
[   85.313953][T12524] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.314250][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.314545][T12524] FS:  00007fc51c980840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.314891][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.315154][T12524] CR2: 00007f10664ec8f4 CR3: 000000001c22b001 CR4: 0000000000771ef0
[   85.315447][T12524] PKRU: 55555554
[   85.315645][T12524] Call Trace:
[   85.315923][T12524]  <TASK>
[   85.316091][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.316355][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.316618][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.316897][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.317160][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.317429][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.317678][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.317951][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.318210][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.318440][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.318695][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.318963][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.319201][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.319431][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.319676][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.319917][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.320146][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.320396][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.320625][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.320878][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.321111][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.321341][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.321893][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.322125][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.322354][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.322585][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.322836][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.323071][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.323301][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.323550][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.323795][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.324024][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.324256][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.324497][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.324749][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.324981][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.325243][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.325514][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.325819][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.326124][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.326419][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.326725][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.327018][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.327304][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.327589][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.327839][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.328014][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.328191][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.328398][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.328580][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.328781][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.328961][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.329139][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.329347][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.329535][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.329736][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.329923][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.330140][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.330319][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.330496][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.330693][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.330870][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.331062][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.331271][T12524] RIP: 0033:0x7fc51cbba08e
[   85.331457][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.331984][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.332223][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.332480][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.332739][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.332979][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.333218][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.345623][T12524] ------------[ cut here ]------------
| [   85.345841][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/12524
| [   85.346127][T12524] Modules linked in: ipvtap ipvlan
| [   85.346532][T12524] Tainted: [W]=WARN
[   85.346633][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.346810][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.346985][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.347445][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.347609][T12524] RAX: 00000000ffffffa6 RBX: ff110000099078c0 RCX: 1ff4000001264daf
[   85.347812][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000990797c
[   85.348004][T12524] RBP: ff11000013992000 R08: 1fe2200001320f31 R09: ff11000009c40b58
[   85.348196][T12524] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   85.348388][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.348582][T12524] FS:  00007fc51c980840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   85.348821][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.348982][T12524] CR2: 00005559e9c93d5c CR3: 000000001c22b004 CR4: 0000000000771ef0
[   85.349176][T12524] PKRU: 55555554
[   85.349273][T12524] Call Trace:
[   85.349370][T12524]  <TASK>
[   85.349437][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.349602][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.349819][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.349988][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.350151][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.350315][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.350445][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.350606][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.350783][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.350910][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.351037][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.351199][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.351332][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.351460][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.351586][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.351727][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.351855][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.351999][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.352125][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.352257][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.352384][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.352510][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.352638][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.352780][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.352906][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.353033][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.353161][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.353303][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.353432][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.353572][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.353713][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.353840][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.353969][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.354096][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.354227][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.354357][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.354487][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.354624][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.354768][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.355562][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.355706][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.355839][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.355971][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.356100][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.356232][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.356361][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.356488][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.356621][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.356796][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.356959][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.357089][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.357219][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.357346][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.357504][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.357644][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.357806][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.357942][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.358102][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.358231][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.358359][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.358492][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.358623][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.358787][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.358946][T12524] RIP: 0033:0x7fc51cbba08e
[   85.359081][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.359539][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.359746][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.359939][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.360129][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.360330][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.360523][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.364677][T12524] ------------[ cut here ]------------
| [   85.364829][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/12524
| [   85.365109][T12524] Modules linked in: ipvtap ipvlan
| [   85.365496][T12524] Tainted: [W]=WARN
[   85.365593][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.365765][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.365941][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.366404][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.366564][T12524] RAX: 00000000ffffffa6 RBX: ff11000015f16ac0 RCX: 1ff4000001264daf
[   85.366767][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015f16b7c
[   85.366962][T12524] RBP: ff11000012dba000 R08: 1fe2200002be2d71 R09: ff11000009c40b58
[   85.367155][T12524] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   85.367371][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.367572][T12524] FS:  00007fc51c980840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   85.367816][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.367980][T12524] CR2: 00005559e9c93d5c CR3: 000000001c22b004 CR4: 0000000000771ef0
[   85.368173][T12524] PKRU: 55555554
[   85.368269][T12524] Call Trace:
[   85.368364][T12524]  <TASK>
[   85.368430][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.368599][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.368782][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.368946][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.369108][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.369273][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.369404][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.369567][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.369749][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.369879][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.370007][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.370170][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.370299][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.370426][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.370557][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.370705][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.370847][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.370996][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.371124][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.371251][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.371379][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.371506][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.371634][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.372580][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.372818][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.372948][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.373076][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.373206][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.373335][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.373464][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.373595][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.373821][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.373953][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.374081][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.374211][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.374370][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.374500][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.374631][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.374838][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.374978][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.375109][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.375242][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.375375][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.375508][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.375641][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.375915][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.376044][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.376192][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.376350][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.376479][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.376605][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.376857][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.377013][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.377173][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.377314][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.377442][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.377569][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.377841][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.377970][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.378103][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.378231][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.378357][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.378485][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.378643][T12524] RIP: 0033:0x7fc51cbba08e
[   85.378842][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.379302][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.379496][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.379749][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.379941][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.380135][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.380329][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.391835][T12524] ------------[ cut here ]------------
| [   85.392018][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   85.392278][T12524] Modules linked in: ipvtap ipvlan
| [   85.392714][T12524] Tainted: [W]=WARN
[   85.392819][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.392986][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.393153][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.393635][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.393954][T12524] RAX: 00000000ffffffa6 RBX: ff11000015f17c40 RCX: 1ff4000001264daf
[   85.394144][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015f17cfc
[   85.394334][T12524] RBP: ff11000012c3a000 R08: 1fe2200002be2fa1 R09: ff11000009c40b58
[   85.394522][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   85.394733][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.394930][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   85.395166][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.395338][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   85.395533][T12524] PKRU: 55555554
[   85.395628][T12524] Call Trace:
[   85.395734][T12524]  <TASK>
[   85.395802][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.395965][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.396128][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.396315][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.396477][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.396641][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.396804][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.396973][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.397158][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.397350][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.397478][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.397645][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.397937][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.398067][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.398195][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.398324][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.398450][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.398596][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.398822][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.398955][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.399083][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.399215][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.399350][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.399482][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.399611][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.399868][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.400000][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.400130][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.400259][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.400388][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.400537][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.400779][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.400909][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.401037][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.401174][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.401303][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.401432][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.401587][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.401831][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.401961][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.402090][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.402222][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.402350][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.402480][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.402610][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.402854][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.402982][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.403110][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.403268][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.403399][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.403528][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.403793][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.403938][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.404099][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.404259][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.404388][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.404518][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.404796][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.404955][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.405087][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.405214][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.405342][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.405470][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.405629][T12524] RIP: 0033:0x7fc51cbba08e
[   85.405816][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.406271][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.406505][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.406707][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.406898][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.407089][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.407300][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.412349][T12524] ------------[ cut here ]------------
| [   85.412526][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   85.412795][T12524] Modules linked in: ipvtap ipvlan
| [   85.413183][T12524] Tainted: [W]=WARN
[   85.413282][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.413458][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.413629][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.414625][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.414847][T12524] RAX: 00000000ffffffa6 RBX: ff1100000c3fc040 RCX: 1ff4000001264daf
[   85.415041][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3fc0fc
[   85.415248][T12524] RBP: ff110000133c2000 R08: 1fe220000187f821 R09: ff11000009c40b58
[   85.415438][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   85.415626][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.415887][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   85.416121][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.416302][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   85.416493][T12524] PKRU: 55555554
[   85.416588][T12524] Call Trace:
[   85.416747][T12524]  <TASK>
[   85.416813][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.416978][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.417162][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.417322][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.417484][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.417647][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.417867][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.418035][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.418193][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.418320][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.418447][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.418615][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.418809][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.418956][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.419082][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.419213][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.419342][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.419488][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.419641][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.419831][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.419963][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.420091][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.420221][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.420349][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.420477][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.420604][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.420796][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.420949][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.421082][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.421218][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.421345][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.421473][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.421603][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.421791][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.421921][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.422055][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.422183][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.422317][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.422444][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.422573][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.422765][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.422895][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.423028][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.423156][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.423295][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.423426][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.423556][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.423745][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.423902][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.424031][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.424180][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.424336][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.424468][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.424627][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.424825][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.424953][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.425081][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.425242][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.425370][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.425527][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.426292][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.426432][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.426562][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.426811][T12524] RIP: 0033:0x7fc51cbba08e
[   85.426944][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.427422][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.427630][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.427928][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.428120][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.428309][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.428499][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.432993][T12524] ------------[ cut here ]------------
| [   85.433139][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/12524
| [   85.433389][T12524] Modules linked in: ipvtap ipvlan
| [   85.433800][T12524] Tainted: [W]=WARN
[   85.433895][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.434055][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.434220][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.434687][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.434853][T12524] RAX: 00000000ffffffa6 RBX: ff1100000c3fd700 RCX: 1ff4000001264daf
[   85.435044][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3fd7bc
[   85.435234][T12524] RBP: ff11000013532000 R08: 1fe220000187faf9 R09: ff11000009c40b58
[   85.435429][T12524] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   85.435618][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.435820][T12524] FS:  00007fc51c980840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   85.436044][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.436206][T12524] CR2: 00005559e9c93d5c CR3: 000000001c22b004 CR4: 0000000000771ef0
[   85.436408][T12524] PKRU: 55555554
[   85.436504][T12524] Call Trace:
[   85.436626][T12524]  <TASK>
[   85.436767][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.436936][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.437100][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.437264][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.437431][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.437596][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.437738][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.437901][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.438061][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.438191][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.438318][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.438485][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.438614][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.438751][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.438879][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.439006][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.439134][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.439281][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.439410][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.439537][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.439670][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.439802][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.439929][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.440059][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.440190][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.440320][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.440449][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.440580][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.440723][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.440850][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.440978][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.441105][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.441236][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.441364][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.441493][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.441621][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.441758][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.441889][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.442016][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.442146][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.442278][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.442406][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.442537][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.442670][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.442805][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.442934][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.443061][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.443189][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.443350][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.443478][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.443607][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.443747][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.443875][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.444032][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.444172][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.444304][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.444431][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.444593][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.444729][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.444858][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.444985][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.445114][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.445244][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.445404][T12524] RIP: 0033:0x7fc51cbba08e
[   85.445537][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.446004][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.446199][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.446392][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.446582][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.446786][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.446979][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.451077][T12524] ------------[ cut here ]------------
| [   85.451210][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/12524
| [   85.451461][T12524] Modules linked in: ipvtap ipvlan
| [   85.451858][T12524] Tainted: [W]=WARN
[   85.451955][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.452116][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.452280][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.452743][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.452902][T12524] RAX: 00000000ffffffa6 RBX: ff11000017808900 RCX: 1ff4000001264daf
[   85.453095][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000178089bc
[   85.453283][T12524] RBP: ff110000137d2000 R08: 1fe2200002f01139 R09: ff11000009c40b58
[   85.453472][T12524] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   85.454662][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.454861][T12524] FS:  00007fc51c980840(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   85.455083][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.455242][T12524] CR2: 00005559e9c93d5c CR3: 000000001c22b004 CR4: 0000000000771ef0
[   85.455433][T12524] PKRU: 55555554
[   85.455528][T12524] Call Trace:
[   85.455623][T12524]  <TASK>
[   85.455774][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.455936][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.456098][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.456258][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.456418][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.456581][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.456850][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.457018][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.457176][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.457302][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.457429][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.457592][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.457815][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.457944][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.458074][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.458202][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.458329][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.458475][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.458602][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.458861][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.458990][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.459121][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.459248][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.459378][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.459505][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.459638][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.459900][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.460031][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.460163][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.460290][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.460419][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.460546][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.460771][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.460899][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.461027][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.461155][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.461285][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.461416][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.461543][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.461733][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.461863][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.461991][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.462121][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.462251][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.462383][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.462512][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.462639][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.462830][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.462988][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.463117][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.463247][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.463378][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.463505][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.463719][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.463860][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.463989][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.464116][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.464277][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.464409][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.464538][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.464725][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.464852][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.464979][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.465137][T12524] RIP: 0033:0x7fc51cbba08e
[   85.465271][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.465793][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.465988][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.466180][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.466372][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.466564][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.466816][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.485660][T12524] ------------[ cut here ]------------
| [   85.485830][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   85.486094][T12524] Modules linked in: ipvtap ipvlan
| [   85.486504][T12524] Tainted: [W]=WARN
[   85.486606][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.486785][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.486957][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.487436][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.487604][T12524] RAX: 00000000ffffffa6 RBX: ff11000017809700 RCX: 1ff4000001264daf
[   85.487817][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000178097bc
[   85.488012][T12524] RBP: ff11000013652000 R08: 1fe2200002f012f9 R09: ff11000009c40b58
[   85.488211][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   85.488409][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.488606][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   85.488845][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.489008][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   85.489200][T12524] PKRU: 55555554
[   85.489300][T12524] Call Trace:
[   85.489396][T12524]  <TASK>
[   85.489463][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.489627][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.489797][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.489965][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.490128][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.490291][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.490422][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.490584][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.490755][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.490884][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.491014][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.491179][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.491308][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.491434][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.491561][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.491753][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.491882][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.492030][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.492213][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.492342][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.492469][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.492596][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.492789][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.492920][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.493048][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.493175][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.493303][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.493433][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.493561][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.493748][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.493877][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.494004][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.494137][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.494264][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.494393][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.494523][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.494713][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.494846][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.494973][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.495103][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.495236][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.495365][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.495495][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.495624][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.495813][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.495943][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.496069][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.496200][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.496359][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.496490][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.496619][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.496811][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.496939][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.497098][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.497240][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.497367][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.497495][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.497716][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.497845][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.497973][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.498099][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.498227][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.498356][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.498515][T12524] RIP: 0033:0x7fc51cbba08e
[   85.498647][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.499138][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.499334][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.499526][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.499726][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.499919][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.500111][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.504304][T12524] ------------[ cut here ]------------
| [   85.504444][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/12524
| [   85.504707][T12524] Modules linked in: ipvtap ipvlan
| [   85.505099][T12524] Tainted: [W]=WARN
[   85.505198][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.505361][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.505526][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.505994][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.506159][T12524] RAX: 00000000ffffffa6 RBX: ff1100000d756200 RCX: 1ff4000001264daf
[   85.506350][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7562bc
[   85.506542][T12524] RBP: ff11000013ada000 R08: 1fe2200001aeac59 R09: ff11000009c40b58
[   85.507423][T12524] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   85.507615][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.507875][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   85.508104][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.508264][T12524] CR2: 00007fc51cc501a0 CR3: 000000001c22b003 CR4: 0000000000771ef0
[   85.508456][T12524] PKRU: 55555554
[   85.508551][T12524] Call Trace:
[   85.508648][T12524]  <TASK>
[   85.508773][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.508993][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.509155][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.509316][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.509478][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.509641][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.509836][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.509998][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.510156][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.510286][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.510413][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.510581][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.510773][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.510905][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.511032][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.511161][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.511288][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.511434][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.511561][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.511754][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.511883][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.512012][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.512140][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.512268][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.512396][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.512524][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.512711][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.512841][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.512971][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.513097][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.513225][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.513351][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.513482][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.513609][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.513803][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.513936][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.514066][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.514198][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.514326][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.514456][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.514586][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.514776][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.514906][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.515038][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.515167][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.515297][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.515427][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.515558][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.515778][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.515911][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.516047][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.516177][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.516306][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.516463][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.516605][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.516800][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.516929][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.517093][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.517222][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.517352][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.517479][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.517607][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.517797][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.517956][T12524] RIP: 0033:0x7fc51cbba08e
[   85.518093][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.518555][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.518810][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.519004][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.519198][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.519389][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.519581][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.524264][T12524] ------------[ cut here ]------------
| [   85.524408][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   85.524667][T12524] Modules linked in: ipvtap ipvlan
| [   85.525066][T12524] Tainted: [W]=WARN
[   85.525162][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.525323][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.525488][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.525960][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.526122][T12524] RAX: 00000000ffffffa6 RBX: ff1100000d757000 RCX: 1ff4000001264daf
[   85.526313][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7570bc
[   85.526505][T12524] RBP: ff11000013c0a000 R08: 1fe2200001aeae19 R09: ff11000009c40b58
[   85.526702][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   85.526892][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.527085][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   85.527310][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.527473][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   85.527670][T12524] PKRU: 55555554
[   85.527772][T12524] Call Trace:
[   85.527867][T12524]  <TASK>
[   85.527934][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.528097][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.528259][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.528422][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.528584][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.528760][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.528895][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.529062][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.529221][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.529352][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.529480][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.529644][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.529785][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.529913][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.530040][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.530169][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.530297][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.530446][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.530573][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.530710][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.530838][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.530965][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.531094][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.531224][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.531353][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.531479][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.531607][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.531747][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.531875][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.532004][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.532135][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.532269][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.532401][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.532529][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.532663][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.532796][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.532926][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.533058][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.533186][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.533324][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.533455][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.533584][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.533726][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.533856][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.533986][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.534117][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.534249][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.534380][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.534536][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.534671][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.534807][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.534937][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.535065][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.535232][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.535379][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.535510][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.535641][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.535820][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.535954][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.536087][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.536216][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.536346][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.536472][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.536629][T12524] RIP: 0033:0x7fc51cbba08e
[   85.536772][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.537229][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.537422][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.537614][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.537816][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.538006][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.538197][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.543021][T12524] ------------[ cut here ]------------
| [   85.543159][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/12524
| [   85.543412][T12524] Modules linked in: ipvtap ipvlan
| [   85.543817][T12524] Tainted: [W]=WARN
[   85.543917][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.544077][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.544244][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.544709][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.544871][T12524] RAX: 00000000ffffffa6 RBX: ff1100000d757e00 RCX: 1ff4000001264daf
[   85.545060][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d757ebc
[   85.545250][T12524] RBP: ff11000014852000 R08: 1fe2200001aeafd9 R09: ff11000009c40b58
[   85.545441][T12524] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   85.545633][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.546577][T12524] FS:  00007fc51c980840(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   85.546866][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.547028][T12524] CR2: 00007f8c19ce5888 CR3: 000000001c22b005 CR4: 0000000000771ef0
[   85.547221][T12524] PKRU: 55555554
[   85.547317][T12524] Call Trace:
[   85.547413][T12524]  <TASK>
[   85.547481][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.547647][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.547877][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.548092][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.548255][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.548417][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.548547][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.548771][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.548928][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.549055][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.549183][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.549347][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.549477][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.549605][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.549794][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.549923][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.550048][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.550194][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.550324][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.550453][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.550581][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.550770][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.550898][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.551026][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.551154][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.551283][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.551412][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.551543][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.551733][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.551864][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.551992][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.552121][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.552252][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.552381][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.552511][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.552642][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.552833][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.552965][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.553092][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.553224][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.553356][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.553485][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.553617][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.553805][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.553936][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.554066][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.554196][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.554325][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.554485][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.554618][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.554810][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.554939][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.555066][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.555226][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.555369][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.555497][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.555626][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.555855][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.555982][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.556111][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.556241][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.556369][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.556499][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.556717][T12524] RIP: 0033:0x7fc51cbba08e
[   85.556854][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.557311][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.557503][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.557758][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.557951][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.558143][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.558334][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.568619][T12524] ------------[ cut here ]------------
| [   85.568820][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/12524
| [   85.569125][T12524] Modules linked in: ipvtap ipvlan
| [   85.569619][T12524] Tainted: [W]=WARN
[   85.569783][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.570003][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.570216][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.570807][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.571022][T12524] RAX: 00000000ffffffa6 RBX: ff1100000c21b000 RCX: 1ff4000001264daf
[   85.571263][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c21b0bc
[   85.571502][T12524] RBP: ff11000013c3a000 R08: 1fe2200001843619 R09: ff11000009c40b58
[   85.571766][T12524] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.572005][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.572256][T12524] FS:  00007fc51c980840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.572529][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.572762][T12524] CR2: 00007f10664ec8f4 CR3: 000000001c22b001 CR4: 0000000000771ef0
[   85.573003][T12524] PKRU: 55555554
[   85.573146][T12524] Call Trace:
[   85.573291][T12524]  <TASK>
[   85.573405][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.573619][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.573850][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.574068][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.574281][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.574492][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.574693][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.574906][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.575113][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.575292][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.575472][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.575705][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.575883][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.576058][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.576236][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.576413][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.576588][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.576808][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.576986][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.577164][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.577341][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.577519][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.577713][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.577895][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.578075][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.578252][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.578432][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.578610][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.578806][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.578985][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.579164][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.579341][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.579523][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.579720][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.579902][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.580079][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.580258][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.580441][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.580617][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.580818][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.581003][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.581181][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.581361][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.581544][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.581743][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.581925][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.582105][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.582287][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.582497][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.582699][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.582879][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.583059][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.583235][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.583445][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.583640][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.583843][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.584021][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.584236][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.584414][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.584594][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.584796][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.584977][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.585163][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.585373][T12524] RIP: 0033:0x7fc51cbba08e
[   85.585555][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.586089][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.586343][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.586583][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.586850][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.587092][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.587338][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.592142][T12524] ------------[ cut here ]------------
| [   85.592325][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/12524
| [   85.592631][T12524] Modules linked in: ipvtap ipvlan
| [   85.593154][T12524] Tainted: [W]=WARN
[   85.593301][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.593525][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.593766][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.594277][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.594487][T12524] RAX: 00000000ffffffa6 RBX: ff11000015ebe580 RCX: 1ff4000001264daf
[   85.595717][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015ebe63c
[   85.596111][T12524] RBP: ff1100001412a000 R08: 1fe2200002bd7cc9 R09: ff11000009c40b58
[   85.596413][T12524] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.596812][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.597302][T12524] FS:  00007fc51c980840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.597632][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.597922][T12524] CR2: 00007f10664ec8f4 CR3: 000000001c22b001 CR4: 0000000000771ef0
[   85.598219][T12524] PKRU: 55555554
[   85.598417][T12524] Call Trace:
[   85.598617][T12524]  <TASK>
[   85.598800][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.599073][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.599340][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.599605][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.599894][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.600162][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.600402][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.600682][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.600956][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.601189][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.601422][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.601713][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.601948][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.602185][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.602417][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.602728][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.602961][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.603211][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.603444][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.603697][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.603929][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.604164][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.604398][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.604677][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.604922][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.605156][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.605400][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.605634][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.605893][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.606125][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.606358][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.606591][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.606845][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.607092][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.607329][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.607560][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.607819][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.608053][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.608296][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.608530][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.608785][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.609032][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.609331][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.609596][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.609840][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.610022][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.610201][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.610381][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.610589][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.610790][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.610989][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.611170][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.611347][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.611556][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.611769][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.611948][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.612149][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.612365][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.612543][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.612744][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.612921][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.613098][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.613275][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.613481][T12524] RIP: 0033:0x7fc51cbba08e
[   85.613679][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.614195][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.614436][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.614698][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.614956][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.615195][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.615433][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.628563][T12524] ------------[ cut here ]------------
| [   85.629159][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/12524
| [   85.629461][T12524] Modules linked in: ipvtap ipvlan
| [   85.629969][T12524] Tainted: [W]=WARN
[   85.630115][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.630324][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.630542][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.631069][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.631280][T12524] RAX: 00000000ffffffa6 RBX: ff11000015ebfa80 RCX: 1ff4000001264daf
[   85.631519][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015ebfb3c
[   85.631811][T12524] RBP: ff11000013d4a000 R08: 1fe2200002bd7f69 R09: ff11000009c40b58
[   85.632049][T12524] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.632286][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.632527][T12524] FS:  00007fc51c980840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.632824][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.633069][T12524] CR2: 00007f10664ec8f4 CR3: 000000001c22b001 CR4: 0000000000771ef0
[   85.633311][T12524] PKRU: 55555554
[   85.633455][T12524] Call Trace:
[   85.633600][T12524]  <TASK>
[   85.633735][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.633950][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.634176][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.634426][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.634641][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.634873][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.635071][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.635288][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.635496][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.635698][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.635875][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.636116][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.636304][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.636482][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.636675][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.636860][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.637039][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.637234][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.637423][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.637614][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.637815][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.638010][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.638206][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.638401][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.638595][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.638809][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.639001][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.639212][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.639404][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.639599][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.639813][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.640008][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.640206][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.640394][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.640580][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.640774][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.640956][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.641142][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.641322][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.641511][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.641714][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.641896][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.642095][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.642276][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.642469][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.642673][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.642873][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.643066][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.643290][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.643481][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.643694][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.643882][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.644062][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.644274][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.644466][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.644644][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.644840][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.645051][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.645230][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.645407][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.645589][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.645786][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.645969][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.646176][T12524] RIP: 0033:0x7fc51cbba08e
[   85.646363][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.646926][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.647171][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.647411][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.647701][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.647963][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.648204][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.652943][T12524] ------------[ cut here ]------------
| [   85.653130][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/12524
| [   85.653428][T12524] Modules linked in: ipvtap ipvlan
| [   85.653942][T12524] Tainted: [W]=WARN
[   85.654091][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.654299][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.654519][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.655048][T12524] RSP: 0018:ffa0000009326f48 EFLAGS: 00010286
[   85.655261][T12524] RAX: 00000000ffffffa6 RBX: ff1100000ce66e40 RCX: 1ff4000001264daf
[   85.655507][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce66efc
[   85.655848][T12524] RBP: ff1100001535a000 R08: 1fe22000019ccde1 R09: ff11000009c40b58
[   85.656187][T12524] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.656556][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.656965][T12524] FS:  00007fc51c980840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.657382][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.657740][T12524] CR2: 00007f10664ec8f4 CR3: 000000001c22b001 CR4: 0000000000771ef0
[   85.658114][T12524] PKRU: 55555554
[   85.658375][T12524] Call Trace:
[   85.658628][T12524]  <TASK>
[   85.658856][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.659170][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.659535][T12524]  ? __netdev_upper_dev_unlink (net/core/dev.c:9036)
[   85.659844][T12524] ipvlan_device_event (drivers/net/ipvlan/ipvlan_main.c:770) ipvlan
[   85.660217][T12524]  ? ipvlan_addr6_validator_event (drivers/net/ipvlan/ipvlan_main.c:939 (discriminator 2)) ipvlan
[   85.660556][T12524]  notifier_call_chain (kernel/notifier.c:85)
[   85.660845][T12524]  unregister_netdevice_many_notify (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:12436)
[   85.661109][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.661378][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.661610][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.661858][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.662125][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.662362][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.662597][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.662850][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.663109][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.663341][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.663590][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.663849][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.664089][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.664320][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.664551][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.664809][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.665041][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.665271][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.665502][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.665755][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.665991][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.666224][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.666458][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.666711][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.666976][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.667221][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.667464][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.667731][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.667974][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.668219][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.668464][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.668728][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.668972][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.669216][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.669456][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.669739][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.669975][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.670210][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.670440][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.670702][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.670933][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.671193][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.671451][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.671712][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.671946][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.672176][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.672441][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.672744][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.673015][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.673293][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.673627][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.673947][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.674246][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.674546][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.674859][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.675136][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.675401][T12524] RIP: 0033:0x7fc51cbba08e
[   85.675597][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.676171][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.676432][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.676725][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.676989][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.677250][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.677515][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.687906][T12524] ------------[ cut here ]------------
| [   85.688111][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/12524
| [   85.688427][T12524] Modules linked in: ipvtap ipvlan
| [   85.689453][T12524] Tainted: [W]=WARN
[   85.689673][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.689953][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.690227][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.690829][T12524] RSP: 0018:ffa0000009327190 EFLAGS: 00010286
[   85.691108][T12524] RAX: 00000000ffffffa6 RBX: ff1100000ce67540 RCX: 1ff4000001264df8
[   85.691410][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce675fc
[   85.691732][T12524] RBP: ff11000007edc000 R08: 1fe22000019ccec1 R09: ff11000009c40b58
[   85.692033][T12524] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.692334][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.692639][T12524] FS:  00007fc51c980840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.692997][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.693268][T12524] CR2: 00007f10664ec8f4 CR3: 000000001c22b001 CR4: 0000000000771ef0
[   85.693563][T12524] PKRU: 55555554
[   85.693780][T12524] Call Trace:
[   85.693978][T12524]  <TASK>
[   85.694147][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.694419][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.694705][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.694939][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.695171][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.695442][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.695692][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.695923][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.696149][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.696371][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.696622][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.696882][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.697103][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.697332][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.697579][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.697821][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.698042][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.698263][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.698507][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.698750][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.698971][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.699197][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.699441][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.699675][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.699916][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.700136][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.700358][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.700578][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.700824][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.701046][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.701894][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.702147][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.702368][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.702590][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.702836][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.703072][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.703250][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.703425][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.703599][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.703798][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.703985][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.704159][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.704359][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.704530][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.704726][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.704899][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.705069][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.705271][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.705480][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.705677][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.705869][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.706087][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.706263][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.706440][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.706613][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.706805][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.706987][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.707195][T12524] RIP: 0033:0x7fc51cbba08e
[   85.707380][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.707891][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.708124][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.708353][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.708586][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.708852][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.709119][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.712323][T12524] ------------[ cut here ]------------
| [   85.712505][T12524] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/12524
| [   85.713027][T12524] Modules linked in: ipvtap ipvlan
| [   85.713512][T12524] Tainted: [W]=WARN
[   85.713664][T12524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.713871][T12524] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.714077][T12524] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.714562][T12524] RSP: 0018:ffa0000009327190 EFLAGS: 00010286
[   85.714800][T12524] RAX: 00000000ffffffa6 RBX: ff1100000cabc200 RCX: 1ff4000001264df8
[   85.715031][T12524] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cabc2bc
[   85.715277][T12524] RBP: ff110000078d9000 R08: 1fe2200001957859 R09: ff11000009c40b58
[   85.715505][T12524] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.715753][T12524] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.715984][T12524] FS:  00007fc51c980840(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.716247][T12524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.716452][T12524] CR2: 00007f10664ec8f4 CR3: 000000001c22b001 CR4: 0000000000771ef0
[   85.716702][T12524] PKRU: 55555554
[   85.716842][T12524] Call Trace:
[   85.716980][T12524]  <TASK>
[   85.717090][T12524]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.717296][T12524]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.717495][T12524]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.717692][T12524]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.717863][T12524]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   85.718067][T12524]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   85.718242][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.718411][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.718582][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.718770][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.718944][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.719132][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.719301][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.719471][T12524]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   85.719641][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.719831][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.720003][T12524]  ? bpf_address_lookup (kernel/bpf/core.c:734)
[   85.720181][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.720352][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.720555][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.720741][T12524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.720914][T12524]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   85.721085][T12524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   85.721257][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.721427][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.721605][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.721798][T12524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.721968][T12524]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   85.722141][T12524]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   85.722312][T12524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.722484][T12524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.722698][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   85.722871][T12524]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   85.723078][T12524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.723258][T12524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.723457][T12524]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   85.723634][T12524]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   85.723829][T12524]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   85.724007][T12524]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   85.724180][T12524]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   85.724354][T12524]  ? copy_msghdr_from_user (net/socket.c:2635)
[   85.724529][T12524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   85.724787][T12524]  ? move_addr_to_kernel (net/socket.c:258)
[   85.724962][T12524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.725132][T12524]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   85.725304][T12524]  ___sys_sendmsg (net/socket.c:2752)
[   85.725474][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   85.725697][T12524]  ? copy_msghdr_from_user (net/socket.c:2603)
[   85.725879][T12524]  __sys_sendmsg (net/socket.c:2784)
[   85.726066][T12524]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   85.726235][T12524]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   85.726439][T12524]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.726610][T12524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.726807][T12524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   85.727000][T12524]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   85.727172][T12524]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   85.727345][T12524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.727546][T12524] RIP: 0033:0x7fc51cbba08e
[   85.727741][T12524] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   85.728949][T12524] RSP: 002b:00007fff29feff10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.729183][T12524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc51cbba08e
[   85.729413][T12524] RDX: 0000000000000000 RSI: 00007fff29feffc0 RDI: 0000000000000005
[   85.729641][T12524] RBP: 00007fff29feff20 R08: 0000000000000000 R09: 0000000000000000
[   85.729906][T12524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10db0b
[   85.730134][T12524] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff29ff0680
| [   85.883120][   T68] ------------[ cut here ]------------
| [   85.883352][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   85.883723][   T68] Modules linked in: ipvtap ipvlan
| [   85.884250][   T68] Tainted: [W]=WARN
[   85.884385][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.884578][   T68] Workqueue: netns cleanup_net
[   85.884824][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.885027][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.885496][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   85.885708][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cabd000 RCX: 1ff4000000092eed
[   85.885928][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cabd0bc
[   85.886150][   T68] RBP: ff1100000f2f4000 R08: 1fe2200001957a19 R09: ff110000090e2ed0
[   85.886375][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.886596][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.886843][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.887099][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.887295][   T68] CR2: 00007f4259128574 CR3: 000000004814d004 CR4: 0000000000771ef0
[   85.887518][   T68] PKRU: 55555554
[   85.887665][   T68] Call Trace:
[   85.887810][   T68]  <TASK>
[   85.887919][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.888119][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.888313][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   85.888483][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   85.888681][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.888857][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   85.889025][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.889225][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   85.889396][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   85.889562][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.889754][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   85.889924][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   85.890116][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   85.890282][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   85.890447][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.890617][   T68]  process_one_work (kernel/workqueue.c:3314)
[   85.890802][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   85.890969][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.891141][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   85.891309][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   85.891475][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   85.891644][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   85.891888][   T68]  kthread (kernel/kthread.c:436)
[   85.892025][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   85.892218][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   85.892387][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   85.892555][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   85.892770][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   85.892937][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   85.893106][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   85.896071][   T68] ------------[ cut here ]------------
| [   85.896239][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   85.896519][   T68] Modules linked in: ipvtap ipvlan
| [   85.897129][   T68] Tainted: [W]=WARN
[   85.897266][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.897464][   T68] Workqueue: netns cleanup_net
[   85.897635][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.897859][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.898329][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   85.898526][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cabd700 RCX: 1ff4000000092eed
[   85.898770][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cabd7bc
[   85.898997][   T68] RBP: ff11000002531000 R08: 1fe2200001957af9 R09: ff110000090e2ed0
[   85.899222][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.899445][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.899682][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.899947][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.900147][   T68] CR2: 00007f4259128574 CR3: 000000004814d004 CR4: 0000000000771ef0
[   85.900373][   T68] PKRU: 55555554
[   85.900510][   T68] Call Trace:
[   85.900646][   T68]  <TASK>
[   85.900777][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.900981][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.901181][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   85.901348][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   85.901518][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.901704][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   85.901870][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.902039][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   85.902208][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   85.902375][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.902543][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   85.902731][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   85.902895][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   85.903063][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   85.903230][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.903397][   T68]  process_one_work (kernel/workqueue.c:3314)
[   85.903570][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   85.903762][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.903933][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   85.904101][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   85.904270][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   85.904436][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   85.904600][   T68]  kthread (kernel/kthread.c:436)
[   85.904760][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   85.904960][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   85.905127][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   85.905296][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   85.905490][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   85.905670][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   85.905845][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   85.908631][   T68] ------------[ cut here ]------------
| [   85.908811][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   85.909096][   T68] Modules linked in: ipvtap ipvlan
| [   85.909579][   T68] Tainted: [W]=WARN
[   85.909737][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.909934][   T68] Workqueue: netns cleanup_net
[   85.910107][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.910311][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.910797][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   85.911029][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cabde00 RCX: 1ff4000000092eed
[   85.911254][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cabdebc
[   85.911478][   T68] RBP: ff1100000fefc000 R08: 1fe2200001957bd9 R09: ff110000090e2ed0
[   85.911722][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.911943][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.912185][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.912440][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.912636][   T68] CR2: 00007f4259128574 CR3: 000000004814d004 CR4: 0000000000771ef0
[   85.912882][   T68] PKRU: 55555554
[   85.913018][   T68] Call Trace:
[   85.913157][   T68]  <TASK>
[   85.913278][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.913478][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.913695][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   85.913864][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   85.914033][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.914198][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   85.914370][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.914541][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   85.914734][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   85.914900][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.915070][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   85.915241][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   85.915405][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   85.915573][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   85.915764][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.915936][   T68]  process_one_work (kernel/workqueue.c:3314)
[   85.916107][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   85.916305][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.916476][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   85.916644][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   85.916865][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   85.917038][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   85.917206][   T68]  kthread (kernel/kthread.c:436)
[   85.917375][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   85.917571][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   85.917760][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   85.917929][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   85.918120][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   85.918286][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   85.918458][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   85.920969][   T68] ------------[ cut here ]------------
| [   85.921135][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   85.921414][   T68] Modules linked in: ipvtap ipvlan
| [   85.922010][   T68] Tainted: [W]=WARN
[   85.922144][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.922341][   T68] Workqueue: netns cleanup_net
[   85.922513][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.922735][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.923208][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   85.923409][   T68] RAX: 00000000ffffffa6 RBX: ff110000155123c0 RCX: 1ff4000000092eed
[   85.923631][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001551247c
[   85.923905][   T68] RBP: ff11000008441000 R08: 1fe2200002aa2491 R09: ff110000090e2ed0
[   85.924137][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.924363][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.924596][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.924871][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.925067][   T68] CR2: 00007f4259128574 CR3: 000000004814d004 CR4: 0000000000771ef0
[   85.925289][   T68] PKRU: 55555554
[   85.925423][   T68] Call Trace:
[   85.925563][   T68]  <TASK>
[   85.925692][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.925893][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.926084][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   85.926251][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   85.926419][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.926585][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   85.926770][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.926942][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   85.927118][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   85.927285][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.927456][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   85.927623][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   85.927812][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   85.927983][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   85.928150][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.928316][   T68]  process_one_work (kernel/workqueue.c:3314)
[   85.928488][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   85.928669][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.928846][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   85.929017][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   85.929183][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   85.929350][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   85.929516][   T68]  kthread (kernel/kthread.c:436)
[   85.929666][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   85.929872][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   85.930039][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   85.930207][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   85.930401][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   85.930570][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   85.930761][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   85.933243][   T68] ------------[ cut here ]------------
| [   85.933405][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   85.934178][   T68] Modules linked in: ipvtap ipvlan
| [   85.934783][   T68] Tainted: [W]=WARN
[   85.934970][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.935211][   T68] Workqueue: netns cleanup_net
[   85.935430][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.935700][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.936221][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   85.936466][   T68] RAX: 00000000ffffffa6 RBX: ff11000016703380 RCX: 1ff4000000092eed
[   85.936752][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001670343c
[   85.937018][   T68] RBP: ff1100000ea24000 R08: 1fe2200002ce0689 R09: ff110000090e2ed0
[   85.937284][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.937549][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.937844][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.938147][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.938386][   T68] CR2: 00007f4259128574 CR3: 000000004814d004 CR4: 0000000000771ef0
[   85.938670][   T68] PKRU: 55555554
[   85.938856][   T68] Call Trace:
[   85.939035][   T68]  <TASK>
[   85.939230][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.939539][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.939861][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   85.940124][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   85.940413][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.940696][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   85.940958][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.941223][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   85.941480][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   85.941737][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.941989][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   85.942205][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   85.942419][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   85.942633][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   85.942867][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.943081][   T68]  process_one_work (kernel/workqueue.c:3314)
[   85.943302][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   85.943515][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.943754][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   85.943969][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   85.944179][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   85.944393][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   85.944605][   T68]  kthread (kernel/kthread.c:436)
[   85.944809][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   85.945055][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   85.945269][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   85.945483][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   85.945747][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   85.945965][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   85.946178][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   85.963060][   T68] ------------[ cut here ]------------
| [   85.963200][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   85.963454][   T68] Modules linked in: ipvtap ipvlan
| [   85.963884][   T68] Tainted: [W]=WARN
[   85.963978][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.964140][   T68] Workqueue: netns cleanup_net
[   85.964270][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.964431][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.964887][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   85.965044][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c8fe580 RCX: 1ff4000000092eaf
[   85.965231][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c8fe63c
[   85.965418][   T68] RBP: ff1100000eb99000 R08: 1fe220000191fcc9 R09: ff110000090e2ed0
[   85.965603][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   85.965800][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   85.965986][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   85.966206][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.966363][   T68] CR2: 00007fc05679f000 CR3: 000000004814d002 CR4: 0000000000771ef0
[   85.966550][   T68] PKRU: 55555554
[   85.966644][   T68] Call Trace:
[   85.966746][   T68]  <TASK>
[   85.966810][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   85.966934][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   85.967028][   T68]  netif_close_many (net/core/dev.c:1804)
[   85.967152][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   85.967275][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.967398][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.967523][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   85.967646][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   85.967813][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   85.967968][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.968091][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   85.968221][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   85.968344][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.968499][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   85.968628][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   85.968762][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   85.968886][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   85.969031][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   85.969156][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   85.969281][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   85.969402][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.969529][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   85.969660][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   85.969787][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   85.969913][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   85.970038][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.970165][   T68]  process_one_work (kernel/workqueue.c:3314)
[   85.970290][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   85.970414][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.970542][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   85.970669][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   85.970795][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   85.970919][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   85.971045][   T68]  kthread (kernel/kthread.c:436)
[   85.971139][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   85.971293][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   85.971417][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   85.971541][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   85.971702][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   85.971825][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   85.971950][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   85.983694][   T68] ------------[ cut here ]------------
| [   85.983863][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   85.984147][   T68] Modules linked in: ipvtap ipvlan
| [   85.984637][   T68] Tainted: [W]=WARN
[   85.984796][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.984995][   T68] Workqueue: netns cleanup_net
[   85.985170][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   85.985371][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   85.986307][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   85.986504][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c8ff700 RCX: 1ff4000000092ed5
[   85.986749][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c8ff7bc
[   85.986972][   T68] RBP: ff1100000eb99000 R08: 1fe220000191fef9 R09: ff110000090e2ed0
[   85.987200][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   85.987425][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   85.987652][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   85.987924][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.988123][   T68] CR2: 00007f50665407a0 CR3: 0000000004b2b006 CR4: 0000000000771ef0
[   85.988349][   T68] PKRU: 55555554
[   85.988483][   T68] Call Trace:
[   85.988619][   T68]  <TASK>
[   85.988743][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   85.988944][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   85.989142][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   85.989313][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   85.989487][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   85.989734][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   85.989907][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   85.990076][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   85.990245][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   85.990410][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   85.990579][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   85.990773][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   85.990940][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   85.991108][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   85.991275][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   85.991445][   T68]  process_one_work (kernel/workqueue.c:3314)
[   85.991616][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   85.991798][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   85.991976][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   85.992146][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   85.992314][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   85.992484][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   85.992664][   T68]  kthread (kernel/kthread.c:436)
[   85.992809][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   85.993005][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   85.993172][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   85.993349][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   85.993545][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   85.993734][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   85.993902][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.041906][   T68] ------------[ cut here ]------------
| [   86.042097][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   86.042386][   T68] Modules linked in: ipvtap ipvlan
| [   86.043148][   T68] Tainted: [W]=WARN
[   86.043284][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.043480][   T68] Workqueue: netns cleanup_net
[   86.043672][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.043886][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.044347][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.044543][   T68] RAX: 00000000ffffffa6 RBX: ff1100001ac99540 RCX: 1ff4000000092eed
[   86.044784][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001ac995fc
[   86.045008][   T68] RBP: ff1100000ffec000 R08: 1fe22000035932c1 R09: ff110000090e2ed0
[   86.045226][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   86.045445][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.045683][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   86.045942][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.046140][   T68] CR2: 00007f50665407a0 CR3: 000000004814d004 CR4: 0000000000771ef0
[   86.046362][   T68] PKRU: 55555554
[   86.046498][   T68] Call Trace:
[   86.046632][   T68]  <TASK>
[   86.046763][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.046965][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.047157][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.047327][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.047497][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.047681][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.047858][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.048027][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.048196][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.048361][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.048535][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.048723][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.048889][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.049057][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.049221][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.049387][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.049556][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.049741][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.049944][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.050112][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.050278][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.050445][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.050609][   T68]  kthread (kernel/kthread.c:436)
[   86.050766][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.050965][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.051134][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.051301][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.051493][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.051674][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.051850][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.054533][   T68] ------------[ cut here ]------------
| [   86.054710][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   86.054988][   T68] Modules linked in: ipvtap ipvlan
| [   86.055470][   T68] Tainted: [W]=WARN
[   86.055604][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.055816][   T68] Workqueue: netns cleanup_net
[   86.055985][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.056183][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.056643][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.056855][   T68] RAX: 00000000ffffffa6 RBX: ff11000012abbc40 RCX: 1ff4000000092eed
[   86.057077][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012abbcfc
[   86.057303][   T68] RBP: ff1100000f389000 R08: 1fe22000025577a1 R09: ff110000090e2ed0
[   86.057523][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   86.057766][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.057988][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   86.058244][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.058438][   T68] CR2: 00007f50665407a0 CR3: 000000004814d004 CR4: 0000000000771ef0
[   86.058674][   T68] PKRU: 55555554
[   86.058816][   T68] Call Trace:
[   86.058950][   T68]  <TASK>
[   86.059058][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.059256][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.059454][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.059619][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.059801][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.059970][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.060136][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.060306][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.060475][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.060639][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.060833][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.060998][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.061161][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.061329][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.061496][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.061675][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.061856][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.062026][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.062195][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.062365][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.062530][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.062714][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.062879][   T68]  kthread (kernel/kthread.c:436)
[   86.063014][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.063209][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.063378][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.063545][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.063762][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.063931][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.064099][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.066776][   T68] ------------[ cut here ]------------
| [   86.066943][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   86.067216][   T68] Modules linked in: ipvtap ipvlan
| [   86.067737][   T68] Tainted: [W]=WARN
[   86.067873][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.068066][   T68] Workqueue: netns cleanup_net
[   86.068235][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.068434][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.068914][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.069109][   T68] RAX: 00000000ffffffa6 RBX: ff1100001ac66740 RCX: 1ff4000000092eed
[   86.069329][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001ac667fc
[   86.069551][   T68] RBP: ff1100000f474000 R08: 1fe220000358cd01 R09: ff110000090e2ed0
[   86.069791][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   86.070010][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.070230][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   86.070484][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.070698][   T68] CR2: 00007f50665407a0 CR3: 000000004814d004 CR4: 0000000000771ef0
[   86.070918][   T68] PKRU: 55555554
[   86.071051][   T68] Call Trace:
[   86.071185][   T68]  <TASK>
[   86.071293][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.071496][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.071708][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.071877][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.072043][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.072242][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.072406][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.072603][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.072793][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.072964][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.073133][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.073299][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.073463][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.073630][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.073820][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.073988][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.074162][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.074327][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.074496][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.074675][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.074847][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.075044][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.075209][   T68]  kthread (kernel/kthread.c:436)
[   86.075344][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.075541][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.075728][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.075896][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.076090][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.076255][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.076422][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.078906][   T68] ------------[ cut here ]------------
| [   86.079099][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   86.079380][   T68] Modules linked in: ipvtap ipvlan
| [   86.080385][   T68] Tainted: [W]=WARN
[   86.080567][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.080879][   T68] Workqueue: netns cleanup_net
[   86.081130][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.081377][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.081905][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.082153][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b79a200 RCX: 1ff4000000092eed
[   86.082422][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b79a2bc
[   86.082711][   T68] RBP: ff1100000f48c000 R08: 1fe22000016f3459 R09: ff110000090e2ed0
[   86.082975][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   86.083246][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.083519][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   86.083837][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.084075][   T68] CR2: 00007f50665407a0 CR3: 000000004814d004 CR4: 0000000000771ef0
[   86.084343][   T68] PKRU: 55555554
[   86.084521][   T68] Call Trace:
[   86.084723][   T68]  <TASK>
[   86.084879][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.085123][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.085360][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.085570][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.085830][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.086078][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.086242][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.086413][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.086581][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.086767][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.086938][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.087104][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.087268][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.087434][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.087599][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.087789][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.087963][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.088128][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.088296][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.088462][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.088627][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.088818][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.088992][   T68]  kthread (kernel/kthread.c:436)
[   86.089133][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.089332][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.089506][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.089696][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.089891][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.090057][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.090223][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.092672][   T68] ------------[ cut here ]------------
| [   86.092845][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   86.093123][   T68] Modules linked in: ipvtap ipvlan
| [   86.093604][   T68] Tainted: [W]=WARN
[   86.094072][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.094364][   T68] Workqueue: netns cleanup_net
[   86.094630][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.094952][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.095512][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.095844][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b79a580 RCX: 1ff4000000092eed
[   86.096116][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b79a63c
[   86.096387][   T68] RBP: ff11000005949000 R08: 1fe22000016f34c9 R09: ff110000090e2ed0
[   86.096670][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   86.096949][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.097219][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   86.097518][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.097795][   T68] CR2: 00007f50665407a0 CR3: 000000004814d004 CR4: 0000000000771ef0
[   86.098071][   T68] PKRU: 55555554
[   86.098252][   T68] Call Trace:
[   86.098434][   T68]  <TASK>
[   86.098592][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.098867][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.099114][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.099330][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.099548][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.099788][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.100003][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.100223][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.100445][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.100673][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.100902][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.101117][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.101343][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.101563][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.101801][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.102019][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.102240][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.102456][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.102762][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.103023][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.103303][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.103565][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.103856][   T68]  kthread (kernel/kthread.c:436)
[   86.104089][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.104379][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.104643][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.104985][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.105260][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.105474][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.105708][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.119553][   T68] ------------[ cut here ]------------
| [   86.119705][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   86.119953][   T68] Modules linked in: ipvtap ipvlan
| [   86.120361][   T68] Tainted: [W]=WARN
[   86.120456][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.120613][   T68] Workqueue: netns cleanup_net
[   86.120753][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.120911][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.121354][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   86.121510][   T68] RAX: 00000000ffffffa6 RBX: ff11000016c30ac0 RCX: 1ff4000000092eaf
[   86.121703][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016c30b7c
[   86.121886][   T68] RBP: ff1100000ff24000 R08: 1fe2200002d86171 R09: ff110000090e2ed0
[   86.122069][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   86.122255][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   86.122440][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   86.122664][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.122827][   T68] CR2: 00007ffe374dbfe0 CR3: 0000000009dc3006 CR4: 0000000000771ef0
[   86.123014][   T68] PKRU: 55555554
[   86.123106][   T68] Call Trace:
[   86.123198][   T68]  <TASK>
[   86.123262][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   86.123387][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   86.123482][   T68]  netif_close_many (net/core/dev.c:1804)
[   86.123605][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.123792][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.123914][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.124038][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   86.124162][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   86.124315][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   86.124469][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.124597][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.124738][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   86.124861][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.125020][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.125146][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   86.125269][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   86.125391][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.125516][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   86.125641][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   86.125775][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.125899][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.126024][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.126147][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.126269][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.126395][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.126517][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.126644][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.126782][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.126905][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.127034][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.127156][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.127277][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.127399][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.127522][   T68]  kthread (kernel/kthread.c:436)
[   86.127614][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.127777][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.127903][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.128027][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.128192][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.128315][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.128437][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.139468][   T68] ------------[ cut here ]------------
| [   86.139592][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   86.139873][   T68] Modules linked in: ipvtap ipvlan
| [   86.140267][   T68] Tainted: [W]=WARN
[   86.140358][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.140511][   T68] Workqueue: netns cleanup_net
[   86.140635][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.140798][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.141231][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   86.141381][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c431c40 RCX: 1ff4000000092ed5
[   86.141559][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c431cfc
[   86.141745][   T68] RBP: ff1100000ff24000 R08: 1fe22000018863a1 R09: ff110000090e2ed0
[   86.141929][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   86.142106][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.142294][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   86.142506][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.142667][   T68] CR2: 00007ffe374dbfe0 CR3: 000000004814d003 CR4: 0000000000771ef0
[   86.142854][   T68] PKRU: 55555554
[   86.142946][   T68] Call Trace:
[   86.143035][   T68]  <TASK>
[   86.143099][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.143252][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.143408][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.143537][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   86.143664][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   86.143789][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.143908][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   86.144028][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   86.144149][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.144265][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.144388][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.144512][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.144633][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.144767][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.144892][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.145017][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.145145][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.145263][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.145405][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.145530][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.145661][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.145792][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.145915][   T68]  kthread (kernel/kthread.c:436)
[   86.146010][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.146165][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.146288][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.146409][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.146565][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.146695][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.146817][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.226329][   T68] ------------[ cut here ]------------
| [   86.226478][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   86.226732][   T68] Modules linked in: ipvtap ipvlan
| [   86.227136][   T68] Tainted: [W]=WARN
[   86.227225][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.227372][   T68] Workqueue: netns cleanup_net
[   86.227495][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.227657][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.228084][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.228231][   T68] RAX: 00000000ffffffa6 RBX: ff1100001ac67000 RCX: 1ff4000000092eed
[   86.228409][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001ac670bc
[   86.228584][   T68] RBP: ff1100000e959000 R08: 1fe220000358ce19 R09: ff110000090e2ed0
[   86.228769][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   86.228942][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.229117][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   86.229321][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.229469][   T68] CR2: 00007ffe374dbfe0 CR3: 000000004814d003 CR4: 0000000000771ef0
[   86.229644][   T68] PKRU: 55555554
[   86.229744][   T68] Call Trace:
[   86.229832][   T68]  <TASK>
[   86.229893][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.230044][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.230192][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.230309][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.230429][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.230544][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.230667][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.230790][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.230914][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.231029][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.231153][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.231271][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.231387][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.231503][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.231618][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.231746][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.231867][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.231982][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.232104][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.232225][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.232347][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.232465][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.232582][   T68]  kthread (kernel/kthread.c:436)
[   86.232676][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.232824][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.232942][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.233058][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.233204][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.233319][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.233440][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.235610][   T68] ------------[ cut here ]------------
| [   86.235742][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   86.235972][   T68] Modules linked in: ipvtap ipvlan
| [   86.236355][   T68] Tainted: [W]=WARN
[   86.236442][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.236587][   T68] Workqueue: netns cleanup_net
[   86.236912][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.237066][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.237481][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.237628][   T68] RAX: 00000000ffffffa6 RBX: ff110000146d3700 RCX: 1ff4000000092eed
[   86.237811][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000146d37bc
[   86.237989][   T68] RBP: ff1100000f2d4000 R08: 1fe22000028da6f9 R09: ff110000090e2ed0
[   86.238165][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   86.238341][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.238516][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   86.238728][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.238879][   T68] CR2: 00007ffe374dbfe0 CR3: 000000004814d003 CR4: 0000000000771ef0
[   86.239052][   T68] PKRU: 55555554
[   86.239138][   T68] Call Trace:
[   86.239225][   T68]  <TASK>
[   86.239286][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.239433][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.239576][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.239705][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.239824][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.239939][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.240055][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.240172][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.240291][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.240405][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.240527][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.240643][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.240783][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.240901][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.241019][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.241137][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.241257][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.241372][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.241495][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.241612][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.241740][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.241857][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.241972][   T68]  kthread (kernel/kthread.c:436)
[   86.242060][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.242204][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.242321][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.242439][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.242583][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.242711][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.242829][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.245034][   T68] ------------[ cut here ]------------
| [   86.245151][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   86.245380][   T68] Modules linked in: ipvtap ipvlan
| [   86.246212][   T68] Tainted: [W]=WARN
[   86.246303][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.246446][   T68] Workqueue: netns cleanup_net
[   86.246571][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.246776][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.247192][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.247344][   T68] RAX: 00000000ffffffa6 RBX: ff11000015c483c0 RCX: 1ff4000000092eed
[   86.247517][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015c4847c
[   86.247740][   T68] RBP: ff1100000f621000 R08: 1fe2200002b89091 R09: ff110000090e2ed0
[   86.247913][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   86.248087][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.248262][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   86.248513][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.248710][   T68] CR2: 00007ffe374dbfe0 CR3: 000000004814d003 CR4: 0000000000771ef0
[   86.248885][   T68] PKRU: 55555554
[   86.248972][   T68] Call Trace:
[   86.249058][   T68]  <TASK>
[   86.249118][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.249265][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.249408][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.249525][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.249642][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.249815][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.249932][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.250049][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.250169][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.250284][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.250407][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.250524][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.250641][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.250815][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.250930][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.251049][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.251166][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.251282][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.251403][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.251521][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.251640][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.251810][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.251926][   T68]  kthread (kernel/kthread.c:436)
[   86.252017][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.252161][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.252278][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.252395][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.252544][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.252713][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.252830][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.255641][   T68] ------------[ cut here ]------------
| [   86.255818][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   86.256059][   T68] Modules linked in: ipvtap ipvlan
| [   86.256451][   T68] Tainted: [W]=WARN
[   86.256538][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.256701][   T68] Workqueue: netns cleanup_net
[   86.256826][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.256984][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.257396][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.257541][   T68] RAX: 00000000ffffffa6 RBX: ff11000015c48740 RCX: 1ff4000000092eed
[   86.257725][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015c487fc
[   86.257897][   T68] RBP: ff1100000f134000 R08: 1fe2200002b89101 R09: ff110000090e2ed0
[   86.258070][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   86.258242][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.258419][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   86.258622][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.258780][   T68] CR2: 00007fa9812b8000 CR3: 000000004814d002 CR4: 0000000000771ef0
[   86.258955][   T68] PKRU: 55555554
[   86.259041][   T68] Call Trace:
[   86.259127][   T68]  <TASK>
[   86.259188][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.259340][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.259483][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.259599][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.259727][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.259842][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.259960][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.260077][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.260194][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.260310][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.260428][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.260544][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.260663][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.260785][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.260899][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.261016][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.261134][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.261249][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.261369][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.261486][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.261603][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.261728][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.261847][   T68]  kthread (kernel/kthread.c:436)
[   86.261933][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.262077][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.262194][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.262311][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.262461][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.262579][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.262711][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.264665][   T68] ------------[ cut here ]------------
| [   86.264785][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   86.265015][   T68] Modules linked in: ipvtap ipvlan
| [   86.265391][   T68] Tainted: [W]=WARN
[   86.265478][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.265621][   T68] Workqueue: netns cleanup_net
[   86.265752][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.265903][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.266316][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.266465][   T68] RAX: 00000000ffffffa6 RBX: ff11000015c48ac0 RCX: 1ff4000000092eed
[   86.266645][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015c48b7c
[   86.266840][   T68] RBP: ff11000001ee4000 R08: 1fe2200002b89171 R09: ff110000090e2ed0
[   86.267014][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   86.267184][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.267366][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   86.267578][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.267735][   T68] CR2: 00007fa9812b8000 CR3: 000000004814d002 CR4: 0000000000771ef0
[   86.267908][   T68] PKRU: 55555554
[   86.267999][   T68] Call Trace:
[   86.268088][   T68]  <TASK>
[   86.268155][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.268310][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.268455][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.268571][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.268697][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.268816][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.268936][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.269055][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.269175][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.269295][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.269417][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.269534][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.269649][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.269779][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.269900][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.270022][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.270146][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.270273][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.270402][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.270518][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.270633][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.270762][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.270883][   T68]  kthread (kernel/kthread.c:436)
[   86.270971][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.271113][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.271230][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.271349][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.271497][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.271616][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.271745][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.280401][   T68] ------------[ cut here ]------------
| [   86.280555][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   86.280813][   T68] Modules linked in: ipvtap ipvlan
| [   86.281220][   T68] Tainted: [W]=WARN
[   86.281312][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.281466][   T68] Workqueue: netns cleanup_net
[   86.281593][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.281872][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.282309][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   86.282464][   T68] RAX: 00000000ffffffa6 RBX: ff11000015c48c80 RCX: 1ff4000000092eaf
[   86.282645][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015c48d3c
[   86.282889][   T68] RBP: ff1100000eacc000 R08: 1fe2200002b891a9 R09: ff110000090e2ed0
[   86.283072][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   86.283252][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   86.283435][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   86.283649][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.283868][   T68] CR2: 00007fa9812b8000 CR3: 000000004814d002 CR4: 0000000000771ef0
[   86.284101][   T68] PKRU: 55555554
[   86.284193][   T68] Call Trace:
[   86.284284][   T68]  <TASK>
[   86.284347][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   86.284472][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   86.284565][   T68]  netif_close_many (net/core/dev.c:1804)
[   86.284743][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.284865][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.284996][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.285122][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   86.285245][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   86.285398][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   86.285551][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.285728][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.285855][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   86.285978][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.286133][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.286261][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   86.286391][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   86.286520][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.286644][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   86.286823][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   86.286947][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.287068][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.287193][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.287316][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.287437][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.287565][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.287709][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.287833][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.287959][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.288082][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.288209][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.288332][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.288457][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.288586][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.288719][   T68]  kthread (kernel/kthread.c:436)
[   86.288812][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.288964][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.289092][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.289215][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.289368][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.289490][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.289616][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.292039][   T68] ------------[ cut here ]------------
| [   86.292177][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   86.292412][   T68] Modules linked in: ipvtap ipvlan
| [   86.293222][   T68] Tainted: [W]=WARN
[   86.293313][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.293462][   T68] Workqueue: netns cleanup_net
[   86.293585][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.293749][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.294170][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   86.294321][   T68] RAX: 00000000ffffffa6 RBX: ff11000015c49e00 RCX: 1ff4000000092ed5
[   86.294497][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015c49ebc
[   86.294679][   T68] RBP: ff1100000eacc000 R08: 1fe2200002b893d9 R09: ff110000090e2ed0
[   86.294857][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   86.295035][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.295215][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   86.295469][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.295636][   T68] CR2: 00007fa9812b8000 CR3: 000000004814d002 CR4: 0000000000771ef0
[   86.295835][   T68] PKRU: 55555554
[   86.295932][   T68] Call Trace:
[   86.296024][   T68]  <TASK>
[   86.296087][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.296237][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.296386][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.296505][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   86.296624][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   86.296756][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.296882][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   86.297003][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   86.297123][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.297239][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.297359][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.297477][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.297592][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.297723][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.297842][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.297967][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.298093][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.298209][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.298333][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.298454][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.298573][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.298710][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.298828][   T68]  kthread (kernel/kthread.c:436)
[   86.298919][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.299065][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.299184][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.299315][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.299462][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.299582][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.299711][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.445595][   T68] ------------[ cut here ]------------
| [   86.445793][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   86.446033][   T68] Modules linked in: ipvtap ipvlan
| [   86.446427][   T68] Tainted: [W]=WARN
[   86.446516][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.446672][   T68] Workqueue: netns cleanup_net
[   86.446804][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.446958][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.447381][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.447530][   T68] RAX: 00000000ffffffa6 RBX: ff1100001593f000 RCX: 1ff4000000092eed
[   86.447722][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001593f0bc
[   86.447895][   T68] RBP: ff1100000a3fc000 R08: 1fe2200002b27e19 R09: ff110000090e2ed0
[   86.448068][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   86.448240][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.448416][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   86.448626][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.448786][   T68] CR2: 00005559e9c93d5c CR3: 0000000009dc3006 CR4: 0000000000771ef0
[   86.448959][   T68] PKRU: 55555554
[   86.449045][   T68] Call Trace:
[   86.449133][   T68]  <TASK>
[   86.449195][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.449347][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.449491][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.449613][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.449743][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.449864][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.449985][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.450110][   T68]  ? ipmr_net_exit_rtnl (net/ipv4/ipmr.c:354 (discriminator 7) net/ipv4/ipmr.c:3351 (discriminator 7))
[   86.450234][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.450352][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.450466][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.450587][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.450715][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.450830][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.450948][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.451063][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.451183][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.451305][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.451424][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.451545][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.451665][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.451784][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.451901][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.452017][   T68]  kthread (kernel/kthread.c:436)
[   86.452105][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.452259][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.452378][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.452497][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.452648][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.452782][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.452903][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.459937][   T68] ------------[ cut here ]------------
| [   86.460079][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   86.460310][   T68] Modules linked in: ipvtap ipvlan
| [   86.460712][   T68] Tainted: [W]=WARN
[   86.460800][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.460943][   T68] Workqueue: netns cleanup_net
[   86.461063][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.461213][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.461622][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.461786][   T68] RAX: 00000000ffffffa6 RBX: ff1100001593f700 RCX: 1ff4000000092eed
[   86.461965][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001593f7bc
[   86.462141][   T68] RBP: ff1100000e90c000 R08: 1fe2200002b27ef9 R09: ff110000090e2ed0
[   86.462314][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   86.462484][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.462664][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   86.462872][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.463017][   T68] CR2: 00005559e9c93d5c CR3: 000000004814d002 CR4: 0000000000771ef0
[   86.463192][   T68] PKRU: 55555554
[   86.463278][   T68] Call Trace:
[   86.463364][   T68]  <TASK>
[   86.463425][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.463577][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.463740][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.463858][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.463975][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.464090][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.464206][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.464322][   T68]  ? ipmr_net_exit_rtnl (net/ipv4/ipmr.c:354 (discriminator 7) net/ipv4/ipmr.c:3351 (discriminator 7))
[   86.464442][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.464559][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.464679][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.464801][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.464918][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.465039][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.465157][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.465273][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.465391][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.465509][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.465622][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.465755][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.465874][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.466023][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.466146][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.466269][   T68]  kthread (kernel/kthread.c:436)
[   86.466360][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.466511][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.466629][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.466851][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.466997][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.467116][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.467233][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.477302][   T68] ------------[ cut here ]------------
| [   86.477436][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   86.477700][   T68] Modules linked in: ipvtap ipvlan
| [   86.478092][   T68] Tainted: [W]=WARN
[   86.478179][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.478326][   T68] Workqueue: netns cleanup_net
[   86.478447][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.478599][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.479024][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.479171][   T68] RAX: 00000000ffffffa6 RBX: ff1100001593fe00 RCX: 1ff4000000092eed
[   86.479344][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001593febc
[   86.479522][   T68] RBP: ff1100000e7a1000 R08: 1fe2200002b27fd9 R09: ff110000090e2ed0
[   86.479704][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   86.479878][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.480053][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   86.480256][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.480405][   T68] CR2: 00005559e9b9f480 CR3: 000000004814d004 CR4: 0000000000771ef0
[   86.480580][   T68] PKRU: 55555554
[   86.480691][   T68] Call Trace:
[   86.480779][   T68]  <TASK>
[   86.480842][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.480991][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.481146][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.481267][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.481383][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.481501][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.481617][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.481747][   T68]  ? ipmr_net_exit_rtnl (net/ipv4/ipmr.c:354 (discriminator 7) net/ipv4/ipmr.c:3351 (discriminator 7))
[   86.481865][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.481985][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.482108][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.482229][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.482348][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.482467][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.482584][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.482712][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.482832][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.482953][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.483073][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.483193][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.483312][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.483426][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.483542][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.483665][   T68]  kthread (kernel/kthread.c:436)
[   86.483759][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.483905][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.484020][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.484138][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.484287][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.484403][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.484520][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.486527][   T68] ------------[ cut here ]------------
| [   86.486645][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   86.486890][   T68] Modules linked in: ipvtap ipvlan
| [   86.487278][   T68] Tainted: [W]=WARN
[   86.487367][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.487512][   T68] Workqueue: netns cleanup_net
[   86.487634][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.487915][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.488333][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.488482][   T68] RAX: 00000000ffffffa6 RBX: ff11000010787c40 RCX: 1ff4000000092eed
[   86.488750][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010787cfc
[   86.488929][   T68] RBP: ff1100000e5a1000 R08: 1fe22000020f0fa1 R09: ff110000090e2ed0
[   86.489103][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   86.489278][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.489457][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   86.489767][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.489918][   T68] CR2: 00005559e9b9f480 CR3: 000000004814d004 CR4: 0000000000771ef0
[   86.490186][   T68] PKRU: 55555554
[   86.490274][   T68] Call Trace:
[   86.490362][   T68]  <TASK>
[   86.490423][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.490574][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.490816][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.490938][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.491056][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.491175][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.491291][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.491412][   T68]  ? ipmr_net_exit_rtnl (net/ipv4/ipmr.c:354 (discriminator 7) net/ipv4/ipmr.c:3351 (discriminator 7))
[   86.491531][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.491748][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.491868][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.491986][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.492101][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.492216][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.492335][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.492453][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.492572][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.492790][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.492907][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.493033][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.493152][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.493270][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.493416][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.493541][   T68]  kthread (kernel/kthread.c:436)
[   86.493631][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.493867][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.493989][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.494106][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.494254][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.494371][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.494493][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.496701][   T68] ------------[ cut here ]------------
| [   86.496824][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   86.497053][   T68] Modules linked in: ipvtap ipvlan
| [   86.497444][   T68] Tainted: [W]=WARN
[   86.497532][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.497904][   T68] Workqueue: netns cleanup_net
[   86.498039][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.498191][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.498606][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.498810][   T68] RAX: 00000000ffffffa6 RBX: ff110000107878c0 RCX: 1ff4000000092eed
[   86.498988][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001078797c
[   86.499170][   T68] RBP: ff1100000e979000 R08: 1fe22000020f0f31 R09: ff110000090e2ed0
[   86.499362][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   86.499548][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.499786][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   86.500041][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.500192][   T68] CR2: 00005559e9b9f480 CR3: 000000004814d004 CR4: 0000000000771ef0
[   86.500373][   T68] PKRU: 55555554
[   86.500467][   T68] Call Trace:
[   86.500557][   T68]  <TASK>
[   86.500619][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.500830][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.500977][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.501097][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.501217][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.501343][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.501463][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.501584][   T68]  ? ipmr_net_exit_rtnl (net/ipv4/ipmr.c:354 (discriminator 7) net/ipv4/ipmr.c:3351 (discriminator 7))
[   86.501760][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.501882][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.502004][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.502124][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.502248][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.502367][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.502486][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.502601][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.502770][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.502895][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.503014][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.503137][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.503255][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.503373][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.503703][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.503823][   T68]  kthread (kernel/kthread.c:436)
[   86.503910][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.504058][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.504183][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.504304][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.504529][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.504705][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.504831][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.517726][   T68] ------------[ cut here ]------------
| [   86.517875][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   86.518121][   T68] Modules linked in: ipvtap ipvlan
| [   86.518527][   T68] Tainted: [W]=WARN
[   86.518620][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.518791][   T68] Workqueue: netns cleanup_net
[   86.518919][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.519083][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.519525][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   86.519697][   T68] RAX: 00000000ffffffa6 RBX: ff11000015aeec80 RCX: 1ff4000000092eaf
[   86.519888][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015aeed3c
[   86.520105][   T68] RBP: ff1100000f674000 R08: 1fe2200002b5dda9 R09: ff110000090e2ed0
[   86.520290][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   86.520482][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   86.520744][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   86.520974][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.521137][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d002 CR4: 0000000000771ef0
[   86.521324][   T68] PKRU: 55555554
[   86.521418][   T68] Call Trace:
[   86.521510][   T68]  <TASK>
[   86.521575][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   86.521760][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   86.521859][   T68]  netif_close_many (net/core/dev.c:1804)
[   86.521984][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.522111][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.522235][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.522356][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   86.522479][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   86.522645][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   86.522865][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.522990][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.523123][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   86.523248][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.523403][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.523529][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   86.523711][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   86.523839][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.523962][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   86.524088][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   86.524215][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.524339][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.524462][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.524586][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.524768][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.524891][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.525015][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.525149][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.525275][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.525396][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.525523][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.525645][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.525831][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.525959][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.526081][   T68]  kthread (kernel/kthread.c:436)
[   86.526177][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.526329][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.526451][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.526575][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.526814][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.526937][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.527060][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.544096][   T68] ------------[ cut here ]------------
| [   86.544311][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   86.544587][   T68] Modules linked in: ipvtap ipvlan
| [   86.545012][   T68] Tainted: [W]=WARN
[   86.545108][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.545261][   T68] Workqueue: netns cleanup_net
[   86.545386][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.545541][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.546027][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   86.546182][   T68] RAX: 00000000ffffffa6 RBX: ff11000016477a80 RCX: 1ff4000000092ed5
[   86.546357][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016477b3c
[   86.546535][   T68] RBP: ff1100000f674000 R08: 1fe2200002c8ef69 R09: ff110000090e2ed0
[   86.546764][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   86.546938][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.547114][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   86.547324][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.547472][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d002 CR4: 0000000000771ef0
[   86.547647][   T68] PKRU: 55555554
[   86.547782][   T68] Call Trace:
[   86.547870][   T68]  <TASK>
[   86.547933][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.548095][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.548244][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.548364][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   86.548483][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   86.548607][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.548743][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   86.548863][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   86.548987][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.549104][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.549223][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.549342][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.549459][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.549578][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.549706][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.549826][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.549951][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.550067][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.550191][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.550311][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.550433][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.550552][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.550679][   T68]  kthread (kernel/kthread.c:436)
[   86.550775][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.550925][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.551042][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.551159][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.551311][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.551434][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.551551][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.596932][   T68] ------------[ cut here ]------------
| [   86.597087][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   86.597320][   T68] Modules linked in: ipvtap ipvlan
| [   86.598258][   T68] Tainted: [W]=WARN
[   86.598348][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.598494][   T68] Workqueue: netns cleanup_net
[   86.598674][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.598832][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.599259][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.599407][   T68] RAX: 00000000ffffffa6 RBX: ff11000016476c80 RCX: 1ff4000000092eed
[   86.599580][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016476d3c
[   86.599788][   T68] RBP: ff1100000e8b1000 R08: 1fe2200002c8eda9 R09: ff110000090e2ed0
[   86.599970][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   86.600153][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.600334][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   86.600538][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.600698][   T68] CR2: 00007efc46c36430 CR3: 0000000016eab002 CR4: 0000000000771ef0
[   86.600878][   T68] PKRU: 55555554
[   86.600964][   T68] Call Trace:
[   86.601052][   T68]  <TASK>
[   86.601114][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.601269][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.601418][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.601534][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.601662][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.601784][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.601901][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.602021][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.602141][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.602259][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.602385][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.602503][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.602621][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.602755][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.602874][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.602994][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.603165][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.603302][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.603425][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.603543][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.603670][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.603802][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.603918][   T68]  kthread (kernel/kthread.c:436)
[   86.604004][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.604155][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.604278][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.604393][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.604538][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.604661][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.604785][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.607207][   T68] ------------[ cut here ]------------
| [   86.607323][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   86.607549][   T68] Modules linked in: ipvtap ipvlan
| [   86.608559][   T68] Tainted: [W]=WARN
[   86.608730][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.608939][   T68] Workqueue: netns cleanup_net
[   86.609064][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.609216][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.609635][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.609843][   T68] RAX: 00000000ffffffa6 RBX: ff11000016476580 RCX: 1ff4000000092eed
[   86.610013][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001647663c
[   86.610187][   T68] RBP: ff1100000f0e4000 R08: 1fe2200002c8ecc9 R09: ff110000090e2ed0
[   86.610359][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   86.610531][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.610782][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   86.610985][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.611128][   T68] CR2: 00007efc46c36430 CR3: 000000004814d003 CR4: 0000000000771ef0
[   86.611302][   T68] PKRU: 55555554
[   86.611388][   T68] Call Trace:
[   86.611473][   T68]  <TASK>
[   86.611534][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.611709][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.611858][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.611976][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.612092][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.612207][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.612323][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.612440][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.612559][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.612680][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.612806][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.612922][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.613039][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.613156][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.613273][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.613391][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.613510][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.613631][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.613762][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.613877][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.614000][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.614118][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.614233][   T68]  kthread (kernel/kthread.c:436)
[   86.614320][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.614463][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.614586][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.614713][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.614858][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.614973][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.615163][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.627916][   T68] ------------[ cut here ]------------
| [   86.628063][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   86.628292][   T68] Modules linked in: ipvtap ipvlan
| [   86.628696][   T68] Tainted: [W]=WARN
[   86.628786][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.628937][   T68] Workqueue: netns cleanup_net
[   86.629066][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.629222][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.629660][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.629822][   T68] RAX: 00000000ffffffa6 RBX: ff11000016d89e00 RCX: 1ff4000000092eed
[   86.630010][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016d89ebc
[   86.630188][   T68] RBP: ff1100000f169000 R08: 1fe2200002db13d9 R09: ff110000090e2ed0
[   86.630365][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   86.630546][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.630729][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   86.630932][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.631081][   T68] CR2: 00007efc46ec8668 CR3: 000000004814d006 CR4: 0000000000771ef0
[   86.631256][   T68] PKRU: 55555554
[   86.631347][   T68] Call Trace:
[   86.631447][   T68]  <TASK>
[   86.631510][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.631667][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.631821][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.631939][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.632056][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.632172][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.632297][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.632415][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.632535][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.632655][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.632781][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.632899][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.633016][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.633134][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.633254][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.633373][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.633499][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.633619][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.633752][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.633872][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.633989][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.634109][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.634224][   T68]  kthread (kernel/kthread.c:436)
[   86.634311][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.634459][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.634574][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.634699][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.634844][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.634966][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.635081][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.637052][   T68] ------------[ cut here ]------------
| [   86.637169][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   86.637395][   T68] Modules linked in: ipvtap ipvlan
| [   86.637784][   T68] Tainted: [W]=WARN
[   86.637872][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.638020][   T68] Workqueue: netns cleanup_net
[   86.638139][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.638290][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.638715][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.638868][   T68] RAX: 00000000ffffffa6 RBX: ff11000016d89a80 RCX: 1ff4000000092eed
[   86.639040][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016d89b3c
[   86.639211][   T68] RBP: ff1100000945c000 R08: 1fe2200002db1369 R09: ff110000090e2ed0
[   86.639383][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   86.639564][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.639752][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   86.639953][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.640097][   T68] CR2: 00007efc46ec8668 CR3: 000000004814d006 CR4: 0000000000771ef0
[   86.640270][   T68] PKRU: 55555554
[   86.640359][   T68] Call Trace:
[   86.640445][   T68]  <TASK>
[   86.640505][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.640659][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.640813][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.640928][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.641044][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.641159][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.641277][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.641398][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.641520][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.641633][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.641761][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.641877][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.641995][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.642119][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.642236][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.642358][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.642482][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.642596][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.642729][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.642847][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.642969][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.643092][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.643212][   T68]  kthread (kernel/kthread.c:436)
[   86.643301][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.643448][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.643570][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.643700][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.643851][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.643971][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.644098][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.646138][   T68] ------------[ cut here ]------------
| [   86.646254][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   86.646500][   T68] Modules linked in: ipvtap ipvlan
| [   86.646905][   T68] Tainted: [W]=WARN
[   86.646991][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.647139][   T68] Workqueue: netns cleanup_net
[   86.647260][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.647492][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.647994][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.648148][   T68] RAX: 00000000ffffffa6 RBX: ff11000016d89700 RCX: 1ff4000000092eed
[   86.648320][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016d897bc
[   86.648492][   T68] RBP: ff11000008471000 R08: 1fe2200002db12f9 R09: ff110000090e2ed0
[   86.648667][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   86.648924][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.649105][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   86.649314][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.649459][   T68] CR2: 00007efc46ec8668 CR3: 000000004814d006 CR4: 0000000000771ef0
[   86.649631][   T68] PKRU: 55555554
[   86.649730][   T68] Call Trace:
[   86.649815][   T68]  <TASK>
[   86.649877][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.650024][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.650239][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.650356][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.650478][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.650677][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.650807][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.651000][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.651121][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.651272][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.651396][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.651519][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.651642][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.651781][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.651904][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.652022][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.652142][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.652331][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.652454][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.652574][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.652839][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.652965][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.653081][   T68]  kthread (kernel/kthread.c:436)
[   86.653170][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.653315][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.653580][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.653706][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.653853][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.654113][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.654237][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.669847][   T68] ------------[ cut here ]------------
| [   86.669990][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   86.670241][   T68] Modules linked in: ipvtap ipvlan
| [   86.671141][   T68] Tainted: [W]=WARN
[   86.671240][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.671456][   T68] Workqueue: netns cleanup_net
[   86.671590][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.671812][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.672278][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   86.672443][   T68] RAX: 00000000ffffffa6 RBX: ff11000013984ac0 RCX: 1ff4000000092eaf
[   86.672634][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013984b7c
[   86.672883][   T68] RBP: ff1100000eb71000 R08: 1fe2200002730971 R09: ff110000090e2ed0
[   86.673079][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   86.673273][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   86.673463][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   86.673743][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.673904][   T68] CR2: 00007efc46ec8668 CR3: 000000004814d006 CR4: 0000000000771ef0
[   86.674089][   T68] PKRU: 55555554
[   86.674184][   T68] Call Trace:
[   86.674279][   T68]  <TASK>
[   86.674344][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   86.674475][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   86.674573][   T68]  netif_close_many (net/core/dev.c:1804)
[   86.674760][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.674893][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.675023][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.675152][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   86.675280][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   86.675441][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   86.675606][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.675791][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.675921][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   86.676047][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.676210][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.676338][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   86.676465][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   86.676592][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.676782][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   86.676912][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   86.677044][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.677168][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.677297][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.677423][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.677548][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.677735][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.677860][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.677993][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.678126][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.678257][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.678386][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.678514][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.678640][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.678828][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.678962][   T68]  kthread (kernel/kthread.c:436)
[   86.679059][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.679221][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.679353][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.679480][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.679638][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.679826][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.679958][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.682535][   T68] ------------[ cut here ]------------
| [   86.682728][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   86.683017][   T68] Modules linked in: ipvtap ipvlan
| [   86.683521][   T68] Tainted: [W]=WARN
[   86.683750][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.683948][   T68] Workqueue: netns cleanup_net
[   86.684121][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.684324][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.684846][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   86.685047][   T68] RAX: 00000000ffffffa6 RBX: ff110000155ace40 RCX: 1ff4000000092ed5
[   86.685273][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000155acefc
[   86.685499][   T68] RBP: ff1100000eb71000 R08: 1fe2200002ab59e1 R09: ff110000090e2ed0
[   86.685746][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   86.685979][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.686258][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   86.686529][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.686752][   T68] CR2: 00005559e9c8fae8 CR3: 0000000009dc3002 CR4: 0000000000771ef0
[   86.686979][   T68] PKRU: 55555554
[   86.687117][   T68] Call Trace:
[   86.687255][   T68]  <TASK>
[   86.687365][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.687570][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.687802][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.687975][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   86.688146][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   86.688315][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.688487][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   86.688675][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   86.688867][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.689036][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.689210][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.689382][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.689556][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.689748][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.689932][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.690102][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.690278][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.690450][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.690630][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.690831][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.691001][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.691171][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.691340][   T68]  kthread (kernel/kthread.c:436)
[   86.691482][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.691744][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.692212][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.692387][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.692587][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.692780][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.692970][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.756760][   T68] ------------[ cut here ]------------
| [   86.756975][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   86.757271][   T68] Modules linked in: ipvtap ipvlan
| [   86.757819][   T68] Tainted: [W]=WARN
[   86.757953][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.758145][   T68] Workqueue: netns cleanup_net
[   86.758316][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.758515][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.759002][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.759203][   T68] RAX: 00000000ffffffa6 RBX: ff110000155adc40 RCX: 1ff4000000092eed
[   86.759436][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000155adcfc
[   86.759678][   T68] RBP: ff1100000fca1000 R08: 1fe2200002ab5ba1 R09: ff110000090e2ed0
[   86.759915][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   86.760143][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.760374][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   86.760639][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.760855][   T68] CR2: 00005559e9c8fae8 CR3: 000000004814d005 CR4: 0000000000771ef0
[   86.761079][   T68] PKRU: 55555554
[   86.761213][   T68] Call Trace:
[   86.761347][   T68]  <TASK>
[   86.761456][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.761671][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.761877][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.762043][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.762213][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.762379][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.762578][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.762766][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.762938][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.763100][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.763271][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.763438][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.763601][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.763788][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.763954][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.764127][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.764296][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.764461][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.764629][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.764818][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.764983][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.765150][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.765315][   T68]  kthread (kernel/kthread.c:436)
[   86.765455][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.765646][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.765835][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.766002][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.766194][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.766358][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.766529][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.769220][   T68] ------------[ cut here ]------------
| [   86.769381][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   86.769677][   T68] Modules linked in: ipvtap ipvlan
| [   86.770160][   T68] Tainted: [W]=WARN
[   86.770293][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.770483][   T68] Workqueue: netns cleanup_net
[   86.770668][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.770876][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.771330][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.771524][   T68] RAX: 00000000ffffffa6 RBX: ff1100001588fa80 RCX: 1ff4000000092eed
[   86.771766][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001588fb3c
[   86.771985][   T68] RBP: ff1100000fce9000 R08: 1fe2200002b11f69 R09: ff110000090e2ed0
[   86.772203][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   86.772423][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.772645][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   86.772914][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.773106][   T68] CR2: 00005559e9c8fae8 CR3: 000000004814d005 CR4: 0000000000771ef0
[   86.773327][   T68] PKRU: 55555554
[   86.773463][   T68] Call Trace:
[   86.773597][   T68]  <TASK>
[   86.773723][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.773924][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.774117][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.774283][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.774450][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.774611][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.774803][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.774970][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.775138][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.775302][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.775471][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.775635][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.775850][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.776018][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.776186][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.776355][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.776524][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.776708][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.776876][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.777073][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.777240][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.777409][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.777574][   T68]  kthread (kernel/kthread.c:436)
[   86.777731][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.777925][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.778090][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.778257][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.778454][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.778620][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.778829][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.781426][   T68] ------------[ cut here ]------------
| [   86.781586][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   86.781878][   T68] Modules linked in: ipvtap ipvlan
| [   86.782360][   T68] Tainted: [W]=WARN
[   86.782495][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.782704][   T68] Workqueue: netns cleanup_net
[   86.782875][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.783072][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.783536][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.783751][   T68] RAX: 00000000ffffffa6 RBX: ff1100001588f380 RCX: 1ff4000000092eed
[   86.783970][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001588f43c
[   86.784187][   T68] RBP: ff1100000fe0c000 R08: 1fe2200002b11e89 R09: ff110000090e2ed0
[   86.784409][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   86.784630][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.784872][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   86.785198][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.785398][   T68] CR2: 00005559e9c8fae8 CR3: 000000004814d005 CR4: 0000000000771ef0
[   86.785619][   T68] PKRU: 55555554
[   86.785769][   T68] Call Trace:
[   86.785900][   T68]  <TASK>
[   86.786007][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.786204][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.786468][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.786697][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.786877][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.787050][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.787228][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.787397][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.787564][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.787742][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.787910][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.788081][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.788246][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.788412][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.788579][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.788769][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.788939][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.789105][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.789274][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.789516][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.789701][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.789881][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.790047][   T68]  kthread (kernel/kthread.c:436)
[   86.790182][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.790445][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.790608][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.790800][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.790992][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.791157][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.791324][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.794122][   T68] ------------[ cut here ]------------
| [   86.794282][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   86.794554][   T68] Modules linked in: ipvtap ipvlan
| [   86.795051][   T68] Tainted: [W]=WARN
[   86.795185][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.795451][   T68] Workqueue: netns cleanup_net
[   86.795618][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.795832][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.796371][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.796565][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c71cac0 RCX: 1ff4000000092eed
[   86.796883][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c71cb7c
[   86.797100][   T68] RBP: ff1100000e464000 R08: 1fe22000018e3971 R09: ff110000090e2ed0
[   86.797393][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   86.797611][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.797860][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   86.798183][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.798376][   T68] CR2: 00005559e9c8fae8 CR3: 000000004814d005 CR4: 0000000000771ef0
[   86.798596][   T68] PKRU: 55555554
[   86.798749][   T68] Call Trace:
[   86.798884][   T68]  <TASK>
[   86.798994][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.799196][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.799460][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.799625][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.799817][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.799981][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.800154][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.800319][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.800486][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.800665][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.800841][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.801007][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.801201][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.801367][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.801533][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.801724][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.801901][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.802069][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.802239][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.802405][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.802636][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.802829][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.803066][   T68]  kthread (kernel/kthread.c:436)
[   86.803206][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.803473][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.803635][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.803895][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.804093][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.804266][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.804463][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.807519][   T68] ------------[ cut here ]------------
| [   86.807796][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   86.808277][   T68] Modules linked in: ipvtap ipvlan
| [   86.808775][   T68] Tainted: [W]=WARN
[   86.808908][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.809098][   T68] Workqueue: netns cleanup_net
[   86.809267][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.809469][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.810020][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.810211][   T68] RAX: 00000000ffffffa6 RBX: ff1100000caa6900 RCX: 1ff4000000092eed
[   86.810505][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000caa69bc
[   86.810751][   T68] RBP: ff1100000e46c000 R08: 1fe2200001954d39 R09: ff110000090e2ed0
[   86.811044][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   86.811266][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.811495][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   86.811795][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.811987][   T68] CR2: 00005559e9c8fae8 CR3: 000000004814d005 CR4: 0000000000771ef0
[   86.812208][   T68] PKRU: 55555554
[   86.812341][   T68] Call Trace:
[   86.812475][   T68]  <TASK>
[   86.812583][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.812802][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.813009][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.813245][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.813412][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.813595][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.813930][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.814103][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.814274][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.814438][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.814605][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.814797][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.814963][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.815129][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.815295][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.815499][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.815681][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.815921][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.816090][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.816258][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.816425][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.816620][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.816807][   T68]  kthread (kernel/kthread.c:436)
[   86.816944][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.817137][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.817302][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.817469][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.817758][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.817925][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.818091][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.837286][   T68] ------------[ cut here ]------------
| [   86.837441][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   86.837696][   T68] Modules linked in: ipvtap ipvlan
| [   86.838099][   T68] Tainted: [W]=WARN
[   86.838192][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.838345][   T68] Workqueue: netns cleanup_net
[   86.838474][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.838635][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.839285][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   86.839443][   T68] RAX: 00000000ffffffa6 RBX: ff1100000caa6ac0 RCX: 1ff4000000092eaf
[   86.839623][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000caa6b7c
[   86.839859][   T68] RBP: ff1100000e489000 R08: 1fe2200001954d71 R09: ff110000090e2ed0
[   86.840043][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   86.840225][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   86.840408][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   86.840619][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.840830][   T68] CR2: 00007fd133d75600 CR3: 0000000009dce005 CR4: 0000000000771ef0
[   86.841017][   T68] PKRU: 55555554
[   86.841108][   T68] Call Trace:
[   86.841247][   T68]  <TASK>
[   86.841313][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   86.841440][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   86.841534][   T68]  netif_close_many (net/core/dev.c:1804)
[   86.841709][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.841832][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.841957][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.842085][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   86.842206][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   86.842357][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   86.842517][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.842638][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.842816][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   86.842938][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.843095][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.843219][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   86.843341][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   86.843463][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.843584][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   86.843763][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   86.843890][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.844012][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.844137][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.844264][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.844388][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.844516][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.844640][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.844827][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.844957][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.845083][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.845208][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.845331][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.845451][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.845572][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.845745][   T68]  kthread (kernel/kthread.c:436)
[   86.845836][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.845985][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.846108][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.846229][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.846380][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.846502][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.846623][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.848931][   T68] ------------[ cut here ]------------
| [   86.849060][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   86.849292][   T68] Modules linked in: ipvtap ipvlan
| [   86.849692][   T68] Tainted: [W]=WARN
[   86.849782][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.849928][   T68] Workqueue: netns cleanup_net
[   86.850050][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.850204][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.850683][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   86.850835][   T68] RAX: 00000000ffffffa6 RBX: ff1100000caa7c40 RCX: 1ff4000000092ed5
[   86.851015][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000caa7cfc
[   86.851188][   T68] RBP: ff1100000e489000 R08: 1fe2200001954fa1 R09: ff110000090e2ed0
[   86.851360][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   86.851534][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.851727][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   86.851932][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.852076][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d003 CR4: 0000000000771ef0
[   86.852251][   T68] PKRU: 55555554
[   86.852339][   T68] Call Trace:
[   86.852430][   T68]  <TASK>
[   86.852498][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.852648][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.852813][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.852931][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   86.853049][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   86.853166][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.853283][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   86.853402][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   86.853522][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.853638][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.853770][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.853888][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.854005][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.854128][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.854245][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.854368][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.854493][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.854608][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.854743][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.854861][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.854979][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.855098][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.855213][   T68]  kthread (kernel/kthread.c:436)
[   86.855303][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.855449][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.855571][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.855701][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.855851][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.855968][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.856085][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.901074][   T68] ------------[ cut here ]------------
| [   86.901225][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   86.901464][   T68] Modules linked in: ipvtap ipvlan
| [   86.902015][   T68] Tainted: [W]=WARN
[   86.902105][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.902251][   T68] Workqueue: netns cleanup_net
[   86.902371][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.902524][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.902962][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.903111][   T68] RAX: 00000000ffffffa6 RBX: ff110000150db380 RCX: 1ff4000000092eed
[   86.903291][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000150db43c
[   86.903469][   T68] RBP: ff1100000fa71000 R08: 1fe2200002a1b689 R09: ff110000090e2ed0
[   86.903642][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   86.903831][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.904007][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   86.904226][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.904379][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d003 CR4: 0000000000771ef0
[   86.904560][   T68] PKRU: 55555554
[   86.904655][   T68] Call Trace:
[   86.904746][   T68]  <TASK>
[   86.904811][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.904963][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.905106][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.905226][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.905347][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.905466][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.905586][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.905721][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.905842][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.906005][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.906146][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.906264][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.906382][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.906502][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.906619][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.906764][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.906891][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.907011][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.907133][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.907250][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.907364][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.907481][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.907594][   T68]  kthread (kernel/kthread.c:436)
[   86.907693][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.907844][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.907963][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.908077][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.908219][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.908334][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.908448][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.910600][   T68] ------------[ cut here ]------------
| [   86.910750][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   86.910983][   T68] Modules linked in: ipvtap ipvlan
| [   86.911368][   T68] Tainted: [W]=WARN
[   86.911457][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.911602][   T68] Workqueue: netns cleanup_net
[   86.911784][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.911936][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.912352][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.912498][   T68] RAX: 00000000ffffffa6 RBX: ff110000150dac80 RCX: 1ff4000000092eed
[   86.912734][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000150dad3c
[   86.912910][   T68] RBP: ff1100000f01c000 R08: 1fe2200002a1b5a9 R09: ff110000090e2ed0
[   86.913079][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   86.913295][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.913468][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   86.913731][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.913876][   T68] CR2: 00007f6ad03bdc20 CR3: 000000004814d001 CR4: 0000000000771ef0
[   86.914052][   T68] PKRU: 55555554
[   86.914139][   T68] Call Trace:
[   86.914225][   T68]  <TASK>
[   86.914286][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.914437][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.914579][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.914747][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.914863][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.914983][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.915098][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.915214][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.915331][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.915448][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.915566][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.915733][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.915847][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.915964][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.916078][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.916194][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.916312][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.916429][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.916547][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.916715][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.916830][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.916947][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.917062][   T68]  kthread (kernel/kthread.c:436)
[   86.917148][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.917294][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.917410][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.917526][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.917720][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.917835][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.917950][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.920468][   T68] ------------[ cut here ]------------
| [   86.920584][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   86.920821][   T68] Modules linked in: ipvtap ipvlan
| [   86.921209][   T68] Tainted: [W]=WARN
[   86.921295][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.921447][   T68] Workqueue: netns cleanup_net
[   86.921566][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.921771][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.922181][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.922325][   T68] RAX: 00000000ffffffa6 RBX: ff1100001654b380 RCX: 1ff4000000092eed
[   86.922495][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001654b43c
[   86.922746][   T68] RBP: ff110000024e4000 R08: 1fe2200002ca9689 R09: ff110000090e2ed0
[   86.922918][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   86.923094][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.923265][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   86.923467][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.923613][   T68] CR2: 00007f6ad03bdc20 CR3: 000000004814d001 CR4: 0000000000771ef0
[   86.923890][   T68] PKRU: 55555554
[   86.923978][   T68] Call Trace:
[   86.924066][   T68]  <TASK>
[   86.924126][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.924275][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.924420][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.924536][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.924762][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.924878][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.924993][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.925115][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.925233][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.925349][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.925467][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.925583][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.925793][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.925910][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.926025][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.926143][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.926275][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.926396][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.926516][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.926633][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.926846][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.926965][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.927082][   T68]  kthread (kernel/kthread.c:436)
[   86.927174][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.927316][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.927432][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.927547][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.927786][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.927900][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.928017][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.930196][   T68] ------------[ cut here ]------------
| [   86.930328][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   86.930561][   T68] Modules linked in: ipvtap ipvlan
| [   86.931307][   T68] Tainted: [W]=WARN
[   86.931394][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.931547][   T68] Workqueue: netns cleanup_net
[   86.931675][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.931829][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.932237][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.932387][   T68] RAX: 00000000ffffffa6 RBX: ff1100001654a3c0 RCX: 1ff4000000092eed
[   86.932560][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001654a47c
[   86.932746][   T68] RBP: ff1100000fad9000 R08: 1fe2200002ca9491 R09: ff110000090e2ed0
[   86.932915][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   86.933085][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.933258][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   86.933459][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.933603][   T68] CR2: 00007f6ad0289574 CR3: 000000004814d003 CR4: 0000000000771ef0
[   86.933783][   T68] PKRU: 55555554
[   86.933868][   T68] Call Trace:
[   86.933953][   T68]  <TASK>
[   86.934014][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.934160][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.934308][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.934425][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.934541][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.934663][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.934784][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.934902][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.935018][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.935133][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.935254][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.935371][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.935484][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.935600][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.935724][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.935841][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.935959][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.936074][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.936196][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.936317][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.936434][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.936549][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.936666][   T68]  kthread (kernel/kthread.c:436)
[   86.936758][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.936900][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.937015][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.937129][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.937271][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.937384][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.937498][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.939451][   T68] ------------[ cut here ]------------
| [   86.939566][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   86.939802][   T68] Modules linked in: ipvtap ipvlan
| [   86.940184][   T68] Tainted: [W]=WARN
[   86.940271][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.940416][   T68] Workqueue: netns cleanup_net
[   86.940536][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.940697][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.941201][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   86.941369][   T68] RAX: 00000000ffffffa6 RBX: ff1100001654a040 RCX: 1ff4000000092eed
[   86.941538][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001654a0fc
[   86.941776][   T68] RBP: ff1100000fb79000 R08: 1fe2200002ca9421 R09: ff110000090e2ed0
[   86.941997][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   86.942166][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.942337][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   86.942541][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.942735][   T68] CR2: 00007f6ad0289574 CR3: 000000004814d003 CR4: 0000000000771ef0
[   86.942907][   T68] PKRU: 55555554
[   86.942993][   T68] Call Trace:
[   86.943079][   T68]  <TASK>
[   86.943140][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.943289][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.943430][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   86.943545][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   86.943711][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.943827][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   86.943940][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.944057][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   86.944172][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.944287][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.944404][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.944518][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.944632][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.944795][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.944910][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.945026][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.945145][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.945259][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.945378][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.945494][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.945607][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.945756][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.945870][   T68]  kthread (kernel/kthread.c:436)
[   86.945955][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.946097][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.946213][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.946327][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.946470][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.946585][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.946710][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.955944][   T68] ------------[ cut here ]------------
| [   86.956128][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   86.956413][   T68] Modules linked in: ipvtap ipvlan
| [   86.956933][   T68] Tainted: [W]=WARN
[   86.957073][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.957272][   T68] Workqueue: netns cleanup_net
[   86.957457][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.957678][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.958203][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   86.958405][   T68] RAX: 00000000ffffffa6 RBX: ff110000129791c0 RCX: 1ff4000000092eaf
[   86.958631][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001297927c
[   86.958929][   T68] RBP: ff1100000fbd4000 R08: 1fe220000252f251 R09: ff110000090e2ed0
[   86.959174][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   86.959405][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   86.959635][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   86.959945][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.960147][   T68] CR2: 00005559f71fda78 CR3: 000000004814d005 CR4: 0000000000771ef0
[   86.960378][   T68] PKRU: 55555554
[   86.960516][   T68] Call Trace:
[   86.962752][   T68]  <TASK>
[   86.962867][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   86.963046][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   86.963189][   T68]  netif_close_many (net/core/dev.c:1804)
[   86.963362][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.963530][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.963719][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.963891][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   86.964060][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   86.964261][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   86.964467][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   86.964678][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   86.964855][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   86.965025][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.965226][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.965428][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   86.965604][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   86.965798][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.965971][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   86.966155][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   86.966329][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.966496][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.966683][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.966864][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.967032][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.967232][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.967404][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.967576][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.967772][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.967954][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.968131][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.968303][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.968473][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.968644][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.968837][   T68]  kthread (kernel/kthread.c:436)
[   86.968976][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.969172][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.969347][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.969549][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.969774][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.969944][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.970113][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.981112][   T68] ------------[ cut here ]------------
| [   86.981313][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   86.981614][   T68] Modules linked in: ipvtap ipvlan
| [   86.982119][   T68] Tainted: [W]=WARN
[   86.982254][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.982446][   T68] Workqueue: netns cleanup_net
[   86.982616][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   86.982835][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   86.983294][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   86.983488][   T68] RAX: 00000000ffffffa6 RBX: ff1100001404c740 RCX: 1ff4000000092ed5
[   86.983730][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001404c7fc
[   86.983952][   T68] RBP: ff1100000fbd4000 R08: 1fe2200002809901 R09: ff110000090e2ed0
[   86.984174][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   86.984393][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   86.984617][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   86.984887][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.985080][   T68] CR2: 00005559f71fda78 CR3: 000000004814d005 CR4: 0000000000771ef0
[   86.985302][   T68] PKRU: 55555554
[   86.985434][   T68] Call Trace:
[   86.985570][   T68]  <TASK>
[   86.985707][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   86.985909][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   86.986107][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.986279][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   86.986478][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   86.986646][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   86.986833][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   86.987004][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   86.987173][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   86.987337][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   86.987536][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   86.987754][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   86.987922][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   86.988094][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   86.988262][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   86.988435][   T68]  process_one_work (kernel/workqueue.c:3314)
[   86.988607][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   86.988798][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   86.988975][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   86.989145][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.989312][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   86.989509][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   86.989695][   T68]  kthread (kernel/kthread.c:436)
[   86.989838][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   86.990032][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.990197][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   86.990365][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   86.990588][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   86.990801][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   86.990968][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.059926][   T68] ------------[ cut here ]------------
| [   87.060123][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.060407][   T68] Modules linked in: ipvtap ipvlan
| [   87.060926][   T68] Tainted: [W]=WARN
[   87.061065][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.061263][   T68] Workqueue: netns cleanup_net
[   87.061434][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.061638][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.062132][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.062336][   T68] RAX: 00000000ffffffa6 RBX: ff11000015ebfe00 RCX: 1ff4000000092eed
[   87.062563][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015ebfebc
[   87.062806][   T68] RBP: ff1100000fb91000 R08: 1fe2200002bd7fd9 R09: ff110000090e2ed0
[   87.063029][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.063256][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.063478][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.063747][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.063945][   T68] CR2: 00005559f71fda78 CR3: 000000004814d005 CR4: 0000000000771ef0
[   87.064176][   T68] PKRU: 55555554
[   87.064310][   T68] Call Trace:
[   87.064444][   T68]  <TASK>
[   87.064551][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.064772][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.064970][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.065137][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.065307][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.065471][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.065639][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.065834][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.066008][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.066170][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.066347][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.066514][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.066698][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.066866][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.067030][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.067200][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.067373][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.067541][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.067732][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.067903][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.068069][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.068235][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.068400][   T68]  kthread (kernel/kthread.c:436)
[   87.068536][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.068750][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.068920][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.069087][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.069279][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.069446][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.069611][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.072240][   T68] ------------[ cut here ]------------
| [   87.072426][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.073069][   T68] Modules linked in: ipvtap ipvlan
| [   87.073579][   T68] Tainted: [W]=WARN
[   87.073739][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.073935][   T68] Workqueue: netns cleanup_net
[   87.074134][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.074332][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.074812][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.075010][   T68] RAX: 00000000ffffffa6 RBX: ff11000015ebf700 RCX: 1ff4000000092eed
[   87.075245][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015ebf7bc
[   87.075471][   T68] RBP: ff1100000fb9c000 R08: 1fe2200002bd7ef9 R09: ff110000090e2ed0
[   87.075718][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.075950][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.076178][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.076437][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.076634][   T68] CR2: 00005559f71fda78 CR3: 000000004814d005 CR4: 0000000000771ef0
[   87.076891][   T68] PKRU: 55555554
[   87.077028][   T68] Call Trace:
[   87.077166][   T68]  <TASK>
[   87.077274][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.077470][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.077673][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.077850][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.078021][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.078191][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.078364][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.078539][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.078729][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.078895][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.079068][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.079236][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.079402][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.079576][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.079763][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.079938][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.080115][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.080277][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.080447][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.080614][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.080801][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.080969][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.081132][   T68]  kthread (kernel/kthread.c:436)
[   87.081268][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.081464][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.081631][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.081817][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.082016][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.082180][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.082344][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.084961][   T68] ------------[ cut here ]------------
| [   87.085088][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.085319][   T68] Modules linked in: ipvtap ipvlan
| [   87.085725][   T68] Tainted: [W]=WARN
[   87.085817][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.085961][   T68] Workqueue: netns cleanup_net
[   87.086084][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.086237][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.086658][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.086823][   T68] RAX: 00000000ffffffa6 RBX: ff11000015ebf000 RCX: 1ff4000000092eed
[   87.086996][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015ebf0bc
[   87.087175][   T68] RBP: ff1100000fe01000 R08: 1fe2200002bd7e19 R09: ff110000090e2ed0
[   87.087348][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.087521][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.087705][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.087911][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.088057][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d005 CR4: 0000000000771ef0
[   87.088237][   T68] PKRU: 55555554
[   87.088324][   T68] Call Trace:
[   87.088411][   T68]  <TASK>
[   87.088471][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.088621][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.088782][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.088900][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.089021][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.089143][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.089264][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.089383][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.089501][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.089620][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.089750][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.089868][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.089986][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.090103][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.090216][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.090332][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.090453][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.090568][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.090698][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.090818][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.090939][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.091058][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.091175][   T68]  kthread (kernel/kthread.c:436)
[   87.091262][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.091408][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.091524][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.091641][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.091796][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.091911][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.092028][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.093988][   T68] ------------[ cut here ]------------
| [   87.094110][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.094348][   T68] Modules linked in: ipvtap ipvlan
| [   87.094747][   T68] Tainted: [W]=WARN
[   87.094835][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.094979][   T68] Workqueue: netns cleanup_net
[   87.095101][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.095257][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.096426][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.096580][   T68] RAX: 00000000ffffffa6 RBX: ff11000015ebec80 RCX: 1ff4000000092eed
[   87.096848][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015ebed3c
[   87.097023][   T68] RBP: ff11000010534000 R08: 1fe2200002bd7da9 R09: ff110000090e2ed0
[   87.097211][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.097383][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.097557][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.097863][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.098008][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d005 CR4: 0000000000771ef0
[   87.098182][   T68] PKRU: 55555554
[   87.098270][   T68] Call Trace:
[   87.098356][   T68]  <TASK>
[   87.098416][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.098744][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.098890][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.099006][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.099127][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.099245][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.099362][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.099483][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.099603][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.099810][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.099932][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.100050][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.100171][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.100289][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.100406][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.100525][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.100645][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.100839][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.100960][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.101079][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.101196][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.101318][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.101438][   T68]  kthread (kernel/kthread.c:436)
[   87.101527][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.101742][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.101861][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.101978][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.102123][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.102244][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.102361][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.116128][   T68] ------------[ cut here ]------------
| [   87.116281][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   87.116512][   T68] Modules linked in: ipvtap ipvlan
| [   87.116918][   T68] Tainted: [W]=WARN
[   87.117007][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.117150][   T68] Workqueue: netns cleanup_net
[   87.117270][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.117421][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.117844][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.117993][   T68] RAX: 00000000ffffffa6 RBX: ff11000012acb380 RCX: 1ff4000000092eed
[   87.118179][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012acb43c
[   87.118356][   T68] RBP: ff11000007c9c000 R08: 1fe2200002559689 R09: ff110000090e2ed0
[   87.118527][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   87.118710][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.118886][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   87.119093][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.119242][   T68] CR2: 000000002540c9c8 CR3: 0000000016f13002 CR4: 0000000000771ef0
[   87.119417][   T68] PKRU: 55555554
[   87.119505][   T68] Call Trace:
[   87.119592][   T68]  <TASK>
[   87.119665][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.119822][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.119978][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.120099][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.120231][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.120350][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.120468][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.120589][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.120718][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.120834][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.120960][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.121080][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.121202][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.121320][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.121436][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.121554][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.121682][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.121806][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.121929][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.122048][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.122165][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.122286][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.122403][   T68]  kthread (kernel/kthread.c:436)
[   87.122492][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.122636][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.122762][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.122879][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.123024][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.123140][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.123261][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.137499][   T68] ------------[ cut here ]------------
| [   87.137671][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   87.137938][   T68] Modules linked in: ipvtap ipvlan
| [   87.138351][   T68] Tainted: [W]=WARN
[   87.138443][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.138595][   T68] Workqueue: netns cleanup_net
[   87.138735][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.138895][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.139340][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   87.139495][   T68] RAX: 00000000ffffffa6 RBX: ff110000128ab000 RCX: 1ff4000000092eaf
[   87.139697][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000128ab0bc
[   87.139883][   T68] RBP: ff11000005231000 R08: 1fe2200002515619 R09: ff110000090e2ed0
[   87.140067][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   87.140252][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   87.140444][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   87.140664][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.140824][   T68] CR2: 000000002540c9c8 CR3: 000000004814d004 CR4: 0000000000771ef0
[   87.141009][   T68] PKRU: 55555554
[   87.141105][   T68] Call Trace:
[   87.141201][   T68]  <TASK>
[   87.141268][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   87.141391][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   87.141489][   T68]  netif_close_many (net/core/dev.c:1804)
[   87.141611][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.141798][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.141920][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.142046][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   87.142169][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   87.142319][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   87.142472][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.142592][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.142774][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   87.142894][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.143047][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.143171][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   87.143294][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   87.143415][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.143537][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   87.143720][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   87.143850][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.143970][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.144094][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.144215][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.144336][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.144458][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.144581][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.144761][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.144886][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.145005][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.145136][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.145260][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.145382][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.145503][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.145626][   T68]  kthread (kernel/kthread.c:436)
[   87.145782][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.145936][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.146063][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.146185][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.146335][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.146456][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.146580][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.158177][   T68] ------------[ cut here ]------------
| [   87.158355][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.158865][   T68] Modules linked in: ipvtap ipvlan
| [   87.159348][   T68] Tainted: [W]=WARN
[   87.159488][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.159702][   T68] Workqueue: netns cleanup_net
[   87.159889][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.160088][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.160550][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   87.160767][   T68] RAX: 00000000ffffffa6 RBX: ff110000136ac200 RCX: 1ff4000000092ed5
[   87.160992][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000136ac2bc
[   87.161212][   T68] RBP: ff11000005231000 R08: 1fe22000026d5859 R09: ff110000090e2ed0
[   87.161433][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.161667][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.161905][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.162159][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.162385][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d006 CR4: 0000000000771ef0
[   87.162611][   T68] PKRU: 55555554
[   87.162770][   T68] Call Trace:
[   87.162906][   T68]  <TASK>
[   87.163013][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.163216][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.163413][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.163583][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   87.163773][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   87.163946][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.164116][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   87.164299][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   87.164471][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.164635][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.164826][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.164993][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.165157][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.165331][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.165498][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.165679][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.165860][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.166025][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.166198][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.166368][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.166538][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.166725][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.166893][   T68]  kthread (kernel/kthread.c:436)
[   87.167030][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.167224][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.167393][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.167562][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.167781][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.167950][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.168117][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.209171][   T68] ------------[ cut here ]------------
| [   87.209355][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.209636][   T68] Modules linked in: ipvtap ipvlan
| [   87.210157][   T68] Tainted: [W]=WARN
[   87.210295][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.210501][   T68] Workqueue: netns cleanup_net
[   87.210698][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.210924][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.211410][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.211610][   T68] RAX: 00000000ffffffa6 RBX: ff110000136ad000 RCX: 1ff4000000092eed
[   87.211860][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000136ad0bc
[   87.212091][   T68] RBP: ff1100000fd44000 R08: 1fe22000026d5a19 R09: ff110000090e2ed0
[   87.212316][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.212536][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.212834][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.213106][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.213300][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d006 CR4: 0000000000771ef0
[   87.213523][   T68] PKRU: 55555554
[   87.213672][   T68] Call Trace:
[   87.213816][   T68]  <TASK>
[   87.213926][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.214132][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.214339][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.214510][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.214733][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.214898][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.215067][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.215266][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.215435][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.215603][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.215795][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.215966][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.216129][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.216295][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.216461][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.216627][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.216828][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.216996][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.217166][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.217332][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.217498][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.217676][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.217849][   T68]  kthread (kernel/kthread.c:436)
[   87.217988][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.218187][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.218354][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.218521][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.218739][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.218908][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.219124][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.221836][   T68] ------------[ cut here ]------------
| [   87.222002][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.222278][   T68] Modules linked in: ipvtap ipvlan
| [   87.222996][   T68] Tainted: [W]=WARN
[   87.223148][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.223344][   T68] Workqueue: netns cleanup_net
[   87.223515][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.223744][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.224214][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.224417][   T68] RAX: 00000000ffffffa6 RBX: ff110000136ad700 RCX: 1ff4000000092eed
[   87.224682][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000136ad7bc
[   87.224911][   T68] RBP: ff1100000ffa9000 R08: 1fe22000026d5af9 R09: ff110000090e2ed0
[   87.225131][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.225358][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.225583][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.225855][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.226050][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d006 CR4: 0000000000771ef0
[   87.226288][   T68] PKRU: 55555554
[   87.226423][   T68] Call Trace:
[   87.226558][   T68]  <TASK>
[   87.226682][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.226890][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.227082][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.227280][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.227448][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.227612][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.227802][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.227979][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.228146][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.228345][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.228517][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.228706][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.228874][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.229042][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.229211][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.229380][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.229551][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.229739][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.229912][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.230082][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.230248][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.230415][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.230613][   T68]  kthread (kernel/kthread.c:436)
[   87.230772][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.230965][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.231131][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.231298][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.231506][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.231699][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.231869][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.234493][   T68] ------------[ cut here ]------------
| [   87.235112][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.235436][   T68] Modules linked in: ipvtap ipvlan
| [   87.236047][   T68] Tainted: [W]=WARN
[   87.236232][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.236470][   T68] Workqueue: netns cleanup_net
[   87.236710][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.236957][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.237472][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.237735][   T68] RAX: 00000000ffffffa6 RBX: ff110000136ade00 RCX: 1ff4000000092eed
[   87.238009][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000136adebc
[   87.238280][   T68] RBP: ff1100000f7b4000 R08: 1fe22000026d5bd9 R09: ff110000090e2ed0
[   87.238556][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.238845][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.239152][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.239446][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.239706][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d006 CR4: 0000000000771ef0
[   87.240018][   T68] PKRU: 55555554
[   87.240245][   T68] Call Trace:
[   87.240492][   T68]  <TASK>
[   87.240719][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.241015][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.241299][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.241556][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.241837][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.242080][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.242246][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.242414][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.242581][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.242770][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.242940][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.243109][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.243279][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.243446][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.243612][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.243802][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.243977][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.244149][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.244328][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.244507][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.244703][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.244873][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.245040][   T68]  kthread (kernel/kthread.c:436)
[   87.245176][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.245367][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.245533][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.245724][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.245927][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.246097][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.246263][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.248686][   T68] ------------[ cut here ]------------
| [   87.248828][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   87.249060][   T68] Modules linked in: ipvtap ipvlan
| [   87.249452][   T68] Tainted: [W]=WARN
[   87.249541][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.249808][   T68] Workqueue: netns cleanup_net
[   87.249930][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.250088][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.250513][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.250665][   T68] RAX: 00000000ffffffa6 RBX: ff1100001b6fcc80 RCX: 1ff4000000092eed
[   87.250846][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001b6fcd3c
[   87.251019][   T68] RBP: ff1100000f7bc000 R08: 1fe22000036df9a9 R09: ff110000090e2ed0
[   87.251193][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   87.251367][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.251546][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   87.251768][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.251916][   T68] CR2: 00007ffe374dbfe0 CR3: 0000000009dc3006 CR4: 0000000000771ef0
[   87.252097][   T68] PKRU: 55555554
[   87.252184][   T68] Call Trace:
[   87.252270][   T68]  <TASK>
[   87.252331][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.252487][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.252634][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.252762][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.252888][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.253007][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.253131][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.253251][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.253374][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.253492][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.253616][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.253747][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.253867][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.253986][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.254104][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.254224][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.254345][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.254463][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.254584][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.254714][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.254832][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.254953][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.255079][   T68]  kthread (kernel/kthread.c:436)
[   87.255167][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.255315][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.255436][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.255560][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.255727][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.255851][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.255970][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.257991][   T68] ------------[ cut here ]------------
| [   87.258107][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   87.258339][   T68] Modules linked in: ipvtap ipvlan
| [   87.258735][   T68] Tainted: [W]=WARN
[   87.258824][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.258970][   T68] Workqueue: netns cleanup_net
[   87.259095][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.259329][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.259764][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.259916][   T68] RAX: 00000000ffffffa6 RBX: ff110000105fae40 RCX: 1ff4000000092eed
[   87.260091][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000105faefc
[   87.260265][   T68] RBP: ff1100000fd7c000 R08: 1fe22000020bf5e1 R09: ff110000090e2ed0
[   87.260440][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   87.260616][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.260802][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   87.261004][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.261154][   T68] CR2: 00007ffe374dbfe0 CR3: 0000000009dc3006 CR4: 0000000000771ef0
[   87.261328][   T68] PKRU: 55555554
[   87.261414][   T68] Call Trace:
[   87.261499][   T68]  <TASK>
[   87.261559][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.261718][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.261865][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.261981][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.262102][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.262217][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.262333][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.262453][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.262574][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.262697][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.262818][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.262936][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.263053][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.263174][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.263290][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.263411][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.263532][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.263649][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.263780][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.263898][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.264020][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.264139][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.264256][   T68]  kthread (kernel/kthread.c:436)
[   87.264346][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.264493][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.264609][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.264871][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.265018][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.265137][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.265328][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.281421][   T68] ------------[ cut here ]------------
| [   87.281549][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   87.281815][   T68] Modules linked in: ipvtap ipvlan
| [   87.282232][   T68] Tainted: [W]=WARN
[   87.282326][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.282483][   T68] Workqueue: netns cleanup_net
[   87.282615][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.282792][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.283237][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   87.283394][   T68] RAX: 00000000ffffffa6 RBX: ff110000105fb700 RCX: 1ff4000000092eaf
[   87.283583][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000105fb7bc
[   87.283780][   T68] RBP: ff1100000fd99000 R08: 1fe22000020bf6f9 R09: ff110000090e2ed0
[   87.283963][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   87.284147][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   87.284333][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   87.284550][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.284719][   T68] CR2: 00007ffe374dbfe0 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.284908][   T68] PKRU: 55555554
[   87.285001][   T68] Call Trace:
[   87.285093][   T68]  <TASK>
[   87.285158][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   87.285282][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   87.285379][   T68]  netif_close_many (net/core/dev.c:1804)
[   87.285501][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.285624][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.285756][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.285878][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   87.286001][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   87.286157][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   87.286314][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.286436][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.286562][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   87.286696][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.286853][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.286978][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   87.287106][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   87.287233][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.287356][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   87.287482][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   87.287606][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.287788][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.287964][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.288088][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.288211][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.288335][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.288457][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.288580][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.288762][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.288884][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.289016][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.289141][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.289263][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.289390][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.289513][   T68]  kthread (kernel/kthread.c:436)
[   87.289607][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.289779][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.289902][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.290026][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.290183][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.290306][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.290429][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.292592][   T68] ------------[ cut here ]------------
| [   87.292731][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   87.292961][   T68] Modules linked in: ipvtap ipvlan
| [   87.293356][   T68] Tainted: [W]=WARN
[   87.293445][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.293593][   T68] Workqueue: netns cleanup_net
[   87.293726][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.293877][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.294318][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   87.294468][   T68] RAX: 00000000ffffffa6 RBX: ff110000155138c0 RCX: 1ff4000000092ed5
[   87.294645][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001551397c
[   87.294830][   T68] RBP: ff1100000fd99000 R08: 1fe2200002aa2731 R09: ff110000090e2ed0
[   87.295007][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   87.295183][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.295362][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   87.295569][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.295777][   T68] CR2: 00007ffe374dbfe0 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.295957][   T68] PKRU: 55555554
[   87.296045][   T68] Call Trace:
[   87.296133][   T68]  <TASK>
[   87.296196][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.296346][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.296545][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.296718][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   87.296839][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   87.296956][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.297073][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   87.297196][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   87.297321][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.297439][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.297560][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.297734][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.297853][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.297977][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.298094][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.298214][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.298336][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.298454][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.298575][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.298750][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.298869][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.298992][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.299109][   T68]  kthread (kernel/kthread.c:436)
[   87.299198][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.299345][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.299464][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.299586][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.299787][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.299906][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.300025][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.344056][   T68] ------------[ cut here ]------------
| [   87.344204][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.344444][   T68] Modules linked in: ipvtap ipvlan
| [   87.344845][   T68] Tainted: [W]=WARN
[   87.344937][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.345084][   T68] Workqueue: netns cleanup_net
[   87.345206][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.345360][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.345795][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.345944][   T68] RAX: 00000000ffffffa6 RBX: ff11000015512c80 RCX: 1ff4000000092eed
[   87.346118][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015512d3c
[   87.346294][   T68] RBP: ff1100000f7ec000 R08: 1fe2200002aa25a9 R09: ff110000090e2ed0
[   87.346467][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.346639][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.346827][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.347035][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.347182][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.347357][   T68] PKRU: 55555554
[   87.347445][   T68] Call Trace:
[   87.347534][   T68]  <TASK>
[   87.347596][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.347804][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.347995][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.348118][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.348236][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.348356][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.348474][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.348589][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.348759][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.348874][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.348992][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.349107][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.349221][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.349344][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.349460][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.349576][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.349744][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.349862][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.349985][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.350102][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.350216][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.350335][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.350451][   T68]  kthread (kernel/kthread.c:436)
[   87.350538][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.350736][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.350855][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.350976][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.351122][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.351241][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.351357][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.353606][   T68] ------------[ cut here ]------------
| [   87.353752][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   87.353984][   T68] Modules linked in: ipvtap ipvlan
| [   87.354366][   T68] Tainted: [W]=WARN
[   87.354454][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.354602][   T68] Workqueue: netns cleanup_net
[   87.355472][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.355625][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.356141][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.356291][   T68] RAX: 00000000ffffffa6 RBX: ff11000016703c40 RCX: 1ff4000000092eed
[   87.356463][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016703cfc
[   87.356748][   T68] RBP: ff1100000f809000 R08: 1fe2200002ce07a1 R09: ff110000090e2ed0
[   87.357009][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   87.357182][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.357361][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   87.357573][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.357820][   T68] CR2: 00007f6ed567d000 CR3: 000000004814d003 CR4: 0000000000771ef0
[   87.357995][   T68] PKRU: 55555554
[   87.358083][   T68] Call Trace:
[   87.358169][   T68]  <TASK>
[   87.358229][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.358380][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.358529][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.358716][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.358841][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.358958][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.359074][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.359190][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.359306][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.359422][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.359541][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.359663][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.359778][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.359895][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.360013][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.360136][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.360260][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.360384][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.360509][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.360631][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.360761][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.360886][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.361007][   T68]  kthread (kernel/kthread.c:436)
[   87.361098][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.361249][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.361369][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.361491][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.361641][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.361774][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.361896][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.364075][   T68] ------------[ cut here ]------------
| [   87.364205][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   87.364442][   T68] Modules linked in: ipvtap ipvlan
| [   87.365277][   T68] Tainted: [W]=WARN
[   87.365371][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.365524][   T68] Workqueue: netns cleanup_net
[   87.365643][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.365846][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.366280][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.366434][   T68] RAX: 00000000ffffffa6 RBX: ff11000016703540 RCX: 1ff4000000092eed
[   87.366607][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000167035fc
[   87.366836][   T68] RBP: ff1100000f834000 R08: 1fe2200002ce06c1 R09: ff110000090e2ed0
[   87.367058][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   87.367232][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.367410][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   87.367610][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.367829][   T68] CR2: 00007f6ed567d000 CR3: 000000004814d003 CR4: 0000000000771ef0
[   87.368003][   T68] PKRU: 55555554
[   87.368089][   T68] Call Trace:
[   87.368175][   T68]  <TASK>
[   87.368235][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.368383][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.368527][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.368644][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.368863][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.368979][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.369096][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.369214][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.369338][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.369453][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.369572][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.369759][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.369874][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.369991][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.370107][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.370229][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.370359][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.370477][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.370605][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.370797][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.370919][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.371040][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.371160][   T68]  kthread (kernel/kthread.c:436)
[   87.371252][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.371401][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.371521][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.371642][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.371862][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.371983][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.372099][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.374401][   T68] ------------[ cut here ]------------
| [   87.374554][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   87.374797][   T68] Modules linked in: ipvtap ipvlan
| [   87.375189][   T68] Tainted: [W]=WARN
[   87.375300][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.375450][   T68] Workqueue: netns cleanup_net
[   87.375576][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.375744][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.376154][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.376304][   T68] RAX: 00000000ffffffa6 RBX: ff11000016702e40 RCX: 1ff4000000092eed
[   87.376477][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016702efc
[   87.376663][   T68] RBP: ff1100000f8f4000 R08: 1fe2200002ce05e1 R09: ff110000090e2ed0
[   87.376858][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   87.377038][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.377210][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   87.377416][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.377561][   T68] CR2: 00007f136e0e1574 CR3: 000000004814d005 CR4: 0000000000771ef0
[   87.377747][   T68] PKRU: 55555554
[   87.377833][   T68] Call Trace:
[   87.377919][   T68]  <TASK>
[   87.377980][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.378127][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.378273][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.378393][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.378514][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.378634][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.378763][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.378879][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.378998][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.379118][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.379243][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.379362][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.379477][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.379592][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.379718][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.379835][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.379953][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.380067][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.380187][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.380303][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.380423][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.380540][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.380661][   T68]  kthread (kernel/kthread.c:436)
[   87.380754][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.380896][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.381013][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.381128][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.381278][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.381392][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.381508][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.383442][   T68] ------------[ cut here ]------------
| [   87.383557][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   87.383798][   T68] Modules linked in: ipvtap ipvlan
| [   87.384179][   T68] Tainted: [W]=WARN
[   87.384269][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.384418][   T68] Workqueue: netns cleanup_net
[   87.384544][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.384707][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.385116][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.385265][   T68] RAX: 00000000ffffffa6 RBX: ff11000016702ac0 RCX: 1ff4000000092eed
[   87.385437][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016702b7c
[   87.385606][   T68] RBP: ff1100000f861000 R08: 1fe2200002ce0571 R09: ff110000090e2ed0
[   87.385789][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   87.385960][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.386132][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   87.386343][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.386491][   T68] CR2: 00007f136e0e1574 CR3: 000000004814d005 CR4: 0000000000771ef0
[   87.386666][   T68] PKRU: 55555554
[   87.386759][   T68] Call Trace:
[   87.386845][   T68]  <TASK>
[   87.386905][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.387051][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.387192][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.387308][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.387422][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.387535][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.387657][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.387778][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.387893][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.388006][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.388128][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.388243][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.388356][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.388475][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.388593][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.388717][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.388835][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.388948][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.389069][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.389189][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.389308][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.389430][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.389543][   T68]  kthread (kernel/kthread.c:436)
[   87.389630][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.389781][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.389895][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.390009][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.390151][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.390266][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.390382][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.404427][   T68] ------------[ cut here ]------------
| [   87.404578][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   87.404842][   T68] Modules linked in: ipvtap ipvlan
| [   87.405249][   T68] Tainted: [W]=WARN
[   87.405343][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.405497][   T68] Workqueue: netns cleanup_net
[   87.405623][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.405793][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.406229][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   87.406379][   T68] RAX: 00000000ffffffa6 RBX: ff11000016702900 RCX: 1ff4000000092eaf
[   87.406558][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000167029bc
[   87.406749][   T68] RBP: ff1100000f904000 R08: 1fe2200002ce0539 R09: ff110000090e2ed0
[   87.406927][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   87.407108][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   87.407299][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   87.407512][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.407667][   T68] CR2: 00007f136e0e1574 CR3: 000000004814d005 CR4: 0000000000771ef0
[   87.407863][   T68] PKRU: 55555554
[   87.407953][   T68] Call Trace:
[   87.408042][   T68]  <TASK>
[   87.408105][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   87.408229][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   87.408321][   T68]  netif_close_many (net/core/dev.c:1804)
[   87.408443][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.408562][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.408691][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.408815][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   87.408940][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   87.409091][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   87.409244][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.409363][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.409483][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   87.409604][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.409770][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.409894][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   87.410015][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   87.410137][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.410258][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   87.410383][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   87.410506][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.410627][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.410765][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.410886][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.411010][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.411131][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.411251][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.411372][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.411498][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.411620][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.411810][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.411932][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.412051][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.412172][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.412293][   T68]  kthread (kernel/kthread.c:436)
[   87.412384][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.412538][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.412714][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.412840][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.412996][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.413117][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.413238][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.415574][   T68] ------------[ cut here ]------------
| [   87.415764][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.416050][   T68] Modules linked in: ipvtap ipvlan
| [   87.416533][   T68] Tainted: [W]=WARN
[   87.416726][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.416918][   T68] Workqueue: netns cleanup_net
[   87.417091][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.417303][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.417789][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   87.417981][   T68] RAX: 00000000ffffffa6 RBX: ff1100001ac98ac0 RCX: 1ff4000000092ed5
[   87.418203][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001ac98b7c
[   87.418423][   T68] RBP: ff1100000f904000 R08: 1fe2200003593171 R09: ff110000090e2ed0
[   87.418642][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.418885][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.419119][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.419379][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.419579][   T68] CR2: 00007ffe374dbfe0 CR3: 0000000009dc3004 CR4: 0000000000771ef0
[   87.419830][   T68] PKRU: 55555554
[   87.419968][   T68] Call Trace:
[   87.420102][   T68]  <TASK>
[   87.420214][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.420411][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.420613][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.420830][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   87.420999][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   87.421166][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.421330][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   87.421502][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   87.421681][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.421851][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.422019][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.422184][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.422346][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.422512][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.422699][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.422868][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.423038][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.423202][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.423370][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.423536][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.423720][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.423892][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.424056][   T68]  kthread (kernel/kthread.c:436)
[   87.424192][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.424384][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.424549][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.424737][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.424936][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.425109][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.425274][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.505099][   T68] ------------[ cut here ]------------
| [   87.505247][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.505480][   T68] Modules linked in: ipvtap ipvlan
| [   87.505883][   T68] Tainted: [W]=WARN
[   87.505970][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.506118][   T68] Workqueue: netns cleanup_net
[   87.506239][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.506395][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.506830][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.506981][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c295380 RCX: 1ff4000000092eed
[   87.507155][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c29543c
[   87.507326][   T68] RBP: ff11000012a84000 R08: 1fe2200001852a89 R09: ff110000090e2ed0
[   87.507497][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.507676][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.507854][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.508054][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.508198][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.508373][   T68] PKRU: 55555554
[   87.508459][   T68] Call Trace:
[   87.508545][   T68]  <TASK>
[   87.508605][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.508763][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.508905][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.509020][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.509137][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.509254][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.509370][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.509485][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.509603][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.509725][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.509842][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.509958][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.510073][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.510191][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.510305][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.510421][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.510540][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.510661][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.510784][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.510901][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.511018][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.511133][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.511247][   T68]  kthread (kernel/kthread.c:436)
[   87.511333][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.511481][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.511595][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.511722][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.511866][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.511985][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.512100][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.514228][   T68] ------------[ cut here ]------------
| [   87.514347][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.514577][   T68] Modules linked in: ipvtap ipvlan
| [   87.514967][   T68] Tainted: [W]=WARN
[   87.515058][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.515203][   T68] Workqueue: netns cleanup_net
[   87.515322][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.515485][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.515908][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.516054][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c295a80 RCX: 1ff4000000092eed
[   87.516225][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c295b3c
[   87.516401][   T68] RBP: ff1100000ffd1000 R08: 1fe2200001852b69 R09: ff110000090e2ed0
[   87.516573][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.516757][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.516932][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.517135][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.517283][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.517458][   T68] PKRU: 55555554
[   87.517544][   T68] Call Trace:
[   87.517629][   T68]  <TASK>
[   87.517699][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.517850][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.517994][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.518116][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.518232][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.518351][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.518469][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.518587][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.518717][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.518832][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.518952][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.519076][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.519196][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.519321][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.519443][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.519564][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.519697][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.519819][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.519945][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.520061][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.520180][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.520296][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.520412][   T68]  kthread (kernel/kthread.c:436)
[   87.520499][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.520643][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.520769][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.520886][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.521039][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.521160][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.521277][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.523413][   T68] ------------[ cut here ]------------
| [   87.523537][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.524235][   T68] Modules linked in: ipvtap ipvlan
| [   87.524625][   T68] Tainted: [W]=WARN
[   87.524775][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.524923][   T68] Workqueue: netns cleanup_net
[   87.525044][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.525195][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.525613][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.525811][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b79a200 RCX: 1ff4000000092eed
[   87.525983][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b79a2bc
[   87.526157][   T68] RBP: ff110000105b4000 R08: 1fe22000016f3459 R09: ff110000090e2ed0
[   87.526333][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.526505][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.526730][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.526933][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.527076][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.527255][   T68] PKRU: 55555554
[   87.527340][   T68] Call Trace:
[   87.527426][   T68]  <TASK>
[   87.527486][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.527635][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.527828][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.527944][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.528063][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.528179][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.528298][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.528414][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.528532][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.528645][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.528815][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.528932][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.529048][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.529166][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.529287][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.529405][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.529525][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.529645][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.529823][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.529942][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.530060][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.530177][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.530295][   T68]  kthread (kernel/kthread.c:436)
[   87.530381][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.530525][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.530641][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.530810][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.530954][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.531069][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.531185][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.534726][   T68] ------------[ cut here ]------------
| [   87.534855][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.535084][   T68] Modules linked in: ipvtap ipvlan
| [   87.535466][   T68] Tainted: [W]=WARN
[   87.535559][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.535723][   T68] Workqueue: netns cleanup_net
[   87.535846][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.536002][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.536422][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.536568][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c430ac0 RCX: 1ff4000000092eed
[   87.536758][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c430b7c
[   87.536930][   T68] RBP: ff1100000e401000 R08: 1fe2200001886171 R09: ff110000090e2ed0
[   87.537103][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.537273][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.537446][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.537660][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.537819][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.538007][   T68] PKRU: 55555554
[   87.538098][   T68] Call Trace:
[   87.538190][   T68]  <TASK>
[   87.538254][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.538404][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.538549][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.538672][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.538794][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.538909][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.539027][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.539148][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.539265][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.539379][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.539498][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.539614][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.539739][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.539856][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.539971][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.540090][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.540210][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.540327][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.540449][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.540564][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.540685][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.540809][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.540923][   T68]  kthread (kernel/kthread.c:436)
[   87.541014][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.541157][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.541274][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.541392][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.541538][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.541659][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.541783][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.543938][   T68] ------------[ cut here ]------------
| [   87.544055][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.544281][   T68] Modules linked in: ipvtap ipvlan
| [   87.545431][   T68] Tainted: [W]=WARN
[   87.545523][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.545719][   T68] Workqueue: netns cleanup_net
[   87.545841][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.545993][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.546413][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.546559][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c430740 RCX: 1ff4000000092eed
[   87.546783][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4307fc
[   87.546957][   T68] RBP: ff1100000f571000 R08: 1fe2200001886101 R09: ff110000090e2ed0
[   87.547133][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.547307][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.547484][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.547738][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.547887][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.548058][   T68] PKRU: 55555554
[   87.548144][   T68] Call Trace:
[   87.548229][   T68]  <TASK>
[   87.548289][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.548439][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.548705][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.548821][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.548942][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.549058][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.549174][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.549291][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.549480][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.549599][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.549770][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.549885][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.550002][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.550119][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.550311][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.550431][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.550552][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.550719][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.550846][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.550962][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.551079][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.551269][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.551387][   T68]  kthread (kernel/kthread.c:436)
[   87.551476][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.551621][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.551789][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.551904][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.552048][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.552162][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.552279][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.568289][   T68] ------------[ cut here ]------------
| [   87.568426][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.568750][   T68] Modules linked in: ipvtap ipvlan
| [   87.569166][   T68] Tainted: [W]=WARN
[   87.569259][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.569414][   T68] Workqueue: netns cleanup_net
[   87.569547][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.569717][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.570167][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   87.570323][   T68] RAX: 00000000ffffffa6 RBX: ff110000104c1a80 RCX: 1ff4000000092eaf
[   87.570508][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000104c1b3c
[   87.570703][   T68] RBP: ff1100000e97c000 R08: 1fe2200002098369 R09: ff110000090e2ed0
[   87.570888][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   87.571071][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   87.571257][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.571477][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.571631][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.571825][   T68] PKRU: 55555554
[   87.571918][   T68] Call Trace:
[   87.572015][   T68]  <TASK>
[   87.572082][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   87.572209][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   87.572303][   T68]  netif_close_many (net/core/dev.c:1804)
[   87.572424][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.572549][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.572679][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.572805][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   87.572927][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   87.573090][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   87.573244][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.573365][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.573489][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   87.573616][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.573789][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.573915][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   87.574042][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   87.574164][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.574287][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   87.574411][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   87.574537][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.574664][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.574793][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.574918][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.575041][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.575167][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.575288][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.575412][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.575540][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.575668][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.575805][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.575928][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.576050][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.576175][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.576297][   T68]  kthread (kernel/kthread.c:436)
[   87.576388][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.576543][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.576670][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.576803][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.576955][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.577077][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.577198][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.579340][   T68] ------------[ cut here ]------------
| [   87.579462][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.580118][   T68] Modules linked in: ipvtap ipvlan
| [   87.580515][   T68] Tainted: [W]=WARN
[   87.580603][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.580762][   T68] Workqueue: netns cleanup_net
[   87.580883][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.581037][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.581459][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   87.581612][   T68] RAX: 00000000ffffffa6 RBX: ff11000012c33a80 RCX: 1ff4000000092ed5
[   87.581798][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012c33b3c
[   87.581979][   T68] RBP: ff1100000e97c000 R08: 1fe2200002586769 R09: ff110000090e2ed0
[   87.582158][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.582338][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.582516][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.582728][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.582876][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.583051][   T68] PKRU: 55555554
[   87.583139][   T68] Call Trace:
[   87.583227][   T68]  <TASK>
[   87.583289][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.583438][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.583589][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.583718][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   87.583838][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   87.583961][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.584077][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   87.584197][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   87.584317][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.584434][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.584556][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.584679][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.584801][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.584922][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.585039][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.585159][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.585290][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.585409][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.585532][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.585658][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.585783][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.585908][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.586023][   T68]  kthread (kernel/kthread.c:436)
[   87.586113][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.586260][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.586377][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.586498][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.586644][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.586769][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.586888][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.661557][   T68] ------------[ cut here ]------------
| [   87.661717][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.661951][   T68] Modules linked in: ipvtap ipvlan
| [   87.662336][   T68] Tainted: [W]=WARN
[   87.662423][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.662570][   T68] Workqueue: netns cleanup_net
[   87.662699][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.662852][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.663267][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.663420][   T68] RAX: 00000000ffffffa6 RBX: ff11000015c498c0 RCX: 1ff4000000092eed
[   87.663609][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015c4997c
[   87.663808][   T68] RBP: ff11000012b71000 R08: 1fe2200002b89331 R09: ff110000090e2ed0
[   87.663989][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.664171][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.664355][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.664567][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.664731][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.664918][   T68] PKRU: 55555554
[   87.665009][   T68] Call Trace:
[   87.665100][   T68]  <TASK>
[   87.665163][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.665319][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.665472][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.665596][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.665728][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.665848][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.665969][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.666092][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.666209][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.666324][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.666444][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.666561][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.666681][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.666805][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.666925][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.667044][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.667163][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.667281][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.667426][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.667546][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.667665][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.667786][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.667901][   T68]  kthread (kernel/kthread.c:436)
[   87.667989][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.668136][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.668255][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.668376][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.668527][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.668643][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.668771][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.670907][   T68] ------------[ cut here ]------------
| [   87.671033][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.671259][   T68] Modules linked in: ipvtap ipvlan
| [   87.671649][   T68] Tainted: [W]=WARN
[   87.671747][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.671894][   T68] Workqueue: netns cleanup_net
[   87.672017][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.672172][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.672588][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.672744][   T68] RAX: 00000000ffffffa6 RBX: ff11000015c491c0 RCX: 1ff4000000092eed
[   87.672920][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015c4927c
[   87.673092][   T68] RBP: ff1100000e889000 R08: 1fe2200002b89251 R09: ff110000090e2ed0
[   87.673263][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.673440][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.673612][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.673828][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.673973][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.674147][   T68] PKRU: 55555554
[   87.674233][   T68] Call Trace:
[   87.674320][   T68]  <TASK>
[   87.674381][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.674530][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.674682][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.674814][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.674936][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.675060][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.675186][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.675316][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.675440][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.675563][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.675694][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.675813][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.675929][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.676049][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.676165][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.676283][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.676415][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.676532][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.676660][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.676785][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.676899][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.677015][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.677131][   T68]  kthread (kernel/kthread.c:436)
[   87.677218][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.677366][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.677481][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.677598][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.677752][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.677868][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.677989][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.680108][   T68] ------------[ cut here ]------------
| [   87.680228][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.680454][   T68] Modules linked in: ipvtap ipvlan
| [   87.680848][   T68] Tainted: [W]=WARN
[   87.680935][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.681080][   T68] Workqueue: netns cleanup_net
[   87.681200][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.681352][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.681768][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.681913][   T68] RAX: 00000000ffffffa6 RBX: ff11000015c48ac0 RCX: 1ff4000000092eed
[   87.682086][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015c48b7c
[   87.682256][   T68] RBP: ff1100000f16c000 R08: 1fe2200002b89171 R09: ff110000090e2ed0
[   87.682428][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.682601][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.682782][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.682987][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.683131][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.683305][   T68] PKRU: 55555554
[   87.683392][   T68] Call Trace:
[   87.683478][   T68]  <TASK>
[   87.683538][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.683698][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.683847][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.683963][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.684079][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.684194][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.684310][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.684426][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.684544][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.684664][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.684789][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.684904][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.685019][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.685136][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.685250][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.685366][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.685487][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.685602][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.685731][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.685848][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.685964][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.686083][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.686199][   T68]  kthread (kernel/kthread.c:436)
[   87.686287][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.686432][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.686551][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.686677][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.686826][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.686940][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.687056][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.688985][   T68] ------------[ cut here ]------------
| [   87.689099][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.689325][   T68] Modules linked in: ipvtap ipvlan
| [   87.689713][   T68] Tainted: [W]=WARN
[   87.689802][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.689953][   T68] Workqueue: netns cleanup_net
[   87.690075][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.690233][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.690656][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.690808][   T68] RAX: 00000000ffffffa6 RBX: ff11000015c48740 RCX: 1ff4000000092eed
[   87.690982][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015c487fc
[   87.691153][   T68] RBP: ff11000012b34000 R08: 1fe2200002b89101 R09: ff110000090e2ed0
[   87.691400][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.691571][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.691755][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.692033][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.692177][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.692421][   T68] PKRU: 55555554
[   87.692507][   T68] Call Trace:
[   87.692592][   T68]  <TASK>
[   87.692657][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.692811][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.693026][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.693141][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.693257][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.693372][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.693558][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.693682][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.693808][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.693928][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.694125][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.694243][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.694428][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.694550][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.694750][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.694873][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.694998][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.695118][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.695317][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.695439][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.695558][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.695681][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.695804][   T68]  kthread (kernel/kthread.c:436)
[   87.695893][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.696042][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.696158][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.696278][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.696424][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.696539][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.696667][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.698782][   T68] ------------[ cut here ]------------
| [   87.698906][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.699134][   T68] Modules linked in: ipvtap ipvlan
| [   87.699605][   T68] Tainted: [W]=WARN
[   87.700049][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.700193][   T68] Workqueue: netns cleanup_net
[   87.700311][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.700475][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.700941][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.701092][   T68] RAX: 00000000ffffffa6 RBX: ff11000015c483c0 RCX: 1ff4000000092eed
[   87.701263][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015c4847c
[   87.701440][   T68] RBP: ff110000087a1000 R08: 1fe2200002b89091 R09: ff110000090e2ed0
[   87.701612][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.701840][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.702015][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   87.702222][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.702366][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   87.702538][   T68] PKRU: 55555554
[   87.702623][   T68] Call Trace:
[   87.702761][   T68]  <TASK>
[   87.702821][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.702974][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.703118][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.703235][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.703351][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.703466][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.703582][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.703754][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.703871][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.703989][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.704106][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.704224][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.704338][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.704456][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.704571][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.704739][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.704860][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.704979][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.705100][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.705221][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.705336][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.705452][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.705573][   T68]  kthread (kernel/kthread.c:436)
[   87.705708][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.705855][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.705971][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.706086][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.706232][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.706348][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.706463][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.724131][   T68] ------------[ cut here ]------------
| [   87.724319][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.724623][   T68] Modules linked in: ipvtap ipvlan
| [   87.725748][   T68] Tainted: [W]=WARN
[   87.725944][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.726184][   T68] Workqueue: netns cleanup_net
[   87.726358][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.726566][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.727070][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   87.727272][   T68] RAX: 00000000ffffffa6 RBX: ff110000146d2c80 RCX: 1ff4000000092eaf
[   87.727514][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000146d2d3c
[   87.727766][   T68] RBP: ff11000008b61000 R08: 1fe22000028da5a9 R09: ff110000090e2ed0
[   87.727993][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   87.728221][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   87.728452][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.728744][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.728954][   T68] CR2: 00007f6e3b827310 CR3: 000000001c01c001 CR4: 0000000000771ef0
[   87.729192][   T68] PKRU: 55555554
[   87.729333][   T68] Call Trace:
[   87.729474][   T68]  <TASK>
[   87.729586][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   87.729784][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   87.729927][   T68]  netif_close_many (net/core/dev.c:1804)
[   87.730106][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.730280][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.730456][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.730631][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   87.730827][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   87.731029][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   87.731260][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.731431][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.731599][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   87.731792][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.731997][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.732168][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   87.732341][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   87.732513][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.732703][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   87.732905][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   87.733091][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.733262][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.733435][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.733606][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.733799][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.733971][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.734170][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.734343][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.734517][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.734706][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.734882][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.735055][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.735225][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.735395][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.735572][   T68]  kthread (kernel/kthread.c:436)
[   87.735732][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.735930][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.736103][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.736273][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.736472][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.736641][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.736842][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.739578][   T68] ------------[ cut here ]------------
| [   87.740069][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.740350][   T68] Modules linked in: ipvtap ipvlan
| [   87.740854][   T68] Tainted: [W]=WARN
[   87.740990][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.741181][   T68] Workqueue: netns cleanup_net
[   87.741353][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.741554][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.742031][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   87.742226][   T68] RAX: 00000000ffffffa6 RBX: ff11000019c03e00 RCX: 1ff4000000092ed5
[   87.742449][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000019c03ebc
[   87.742697][   T68] RBP: ff11000008b61000 R08: 1fe22000033807d9 R09: ff110000090e2ed0
[   87.742918][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.743135][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.743362][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.743613][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.743828][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   87.744051][   T68] PKRU: 55555554
[   87.744194][   T68] Call Trace:
[   87.744329][   T68]  <TASK>
[   87.744440][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.744639][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.744942][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.745188][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   87.745426][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   87.745637][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.745903][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   87.746121][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   87.746361][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.746598][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.746832][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.747085][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.747346][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.747580][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.747844][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.748086][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.748301][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.748552][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.748810][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.749024][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.749236][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.749452][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.749678][   T68]  kthread (kernel/kthread.c:436)
[   87.749868][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.750107][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.750318][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.750530][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.750795][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.751006][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.751215][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.807517][   T68] ------------[ cut here ]------------
| [   87.807715][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.807996][   T68] Modules linked in: ipvtap ipvlan
| [   87.808469][   T68] Tainted: [W]=WARN
[   87.808602][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.808824][   T68] Workqueue: netns cleanup_net
[   87.808991][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.809189][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.809648][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.809860][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d56cc80 RCX: 1ff4000000092eed
[   87.810081][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d56cd3c
[   87.810299][   T68] RBP: ff11000012c54000 R08: 1fe2200001aad9a9 R09: ff110000090e2ed0
[   87.810549][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.810798][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.811018][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.811267][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.811462][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   87.811699][   T68] PKRU: 55555554
[   87.811832][   T68] Call Trace:
[   87.811966][   T68]  <TASK>
[   87.812074][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.812269][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.812462][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.812629][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.812819][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.812985][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.813153][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.813322][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.813500][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.813677][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.813853][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.814018][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.814181][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.814348][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.814513][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.814698][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.814869][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.815033][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.815202][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.815367][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.815530][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.815712][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.815877][   T68]  kthread (kernel/kthread.c:436)
[   87.816014][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.816207][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.816373][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.816537][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.816758][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.816922][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.817087][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.819721][   T68] ------------[ cut here ]------------
| [   87.819881][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.820151][   T68] Modules linked in: ipvtap ipvlan
| [   87.820626][   T68] Tainted: [W]=WARN
[   87.820934][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.821132][   T68] Workqueue: netns cleanup_net
[   87.821303][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.821501][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.821980][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.822177][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d56d380 RCX: 1ff4000000092eed
[   87.822397][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d56d43c
[   87.822613][   T68] RBP: ff1100000f411000 R08: 1fe2200001aada89 R09: ff110000090e2ed0
[   87.822859][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.823078][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.823305][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.823554][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.823768][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   87.823989][   T68] PKRU: 55555554
[   87.824121][   T68] Call Trace:
[   87.824254][   T68]  <TASK>
[   87.824362][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.824560][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.824772][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.824938][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.825104][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.825270][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.825435][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.825600][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.825785][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.825948][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.826116][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.826281][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.826474][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.826644][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.826829][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.826996][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.827164][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.827329][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.827499][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.827678][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.827851][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.828017][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.828211][   T68]  kthread (kernel/kthread.c:436)
[   87.828346][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.828540][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.828755][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.828922][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.829115][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.829279][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.829445][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.832015][   T68] ------------[ cut here ]------------
| [   87.832177][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.832449][   T68] Modules linked in: ipvtap ipvlan
| [   87.833366][   T68] Tainted: [W]=WARN
[   87.833547][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.833805][   T68] Workqueue: netns cleanup_net
[   87.834022][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.834267][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.834788][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.835028][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d56da80 RCX: 1ff4000000092eed
[   87.835292][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d56db3c
[   87.835566][   T68] RBP: ff1100000e831000 R08: 1fe2200001aadb69 R09: ff110000090e2ed0
[   87.835849][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.836116][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.836383][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.836688][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.836936][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   87.837203][   T68] PKRU: 55555554
[   87.837379][   T68] Call Trace:
[   87.837586][   T68]  <TASK>
[   87.837760][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.838031][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.838315][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.838585][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.838862][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.839131][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.839419][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.839697][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.839956][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.840206][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.840416][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.840608][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.840824][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.840992][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.841158][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.841324][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.841493][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.841670][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.841845][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.842013][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.842176][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.842340][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.842504][   T68]  kthread (kernel/kthread.c:436)
[   87.842640][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.842871][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.843035][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.843202][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.843394][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.843559][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.843742][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.846161][   T68] ------------[ cut here ]------------
| [   87.846324][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.846595][   T68] Modules linked in: ipvtap ipvlan
| [   87.847587][   T68] Tainted: [W]=WARN
[   87.847797][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.848038][   T68] Workqueue: netns cleanup_net
[   87.848252][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.848498][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.849024][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.849262][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d4e83c0 RCX: 1ff4000000092eed
[   87.849524][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d4e847c
[   87.849816][   T68] RBP: ff1100000f449000 R08: 1fe2200001a9d091 R09: ff110000090e2ed0
[   87.850080][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.850349][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.850613][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.850929][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.851175][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   87.851441][   T68] PKRU: 55555554
[   87.851616][   T68] Call Trace:
[   87.851814][   T68]  <TASK>
[   87.851967][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.852222][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.852511][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.852793][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.853052][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.853308][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.853570][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.853856][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.854122][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.854364][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.854591][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.854852][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.855064][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.855273][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.855481][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.855712][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.855927][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.856133][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.856346][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.856563][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.856793][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.857015][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.857228][   T68]  kthread (kernel/kthread.c:436)
[   87.857415][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.857669][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.857901][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.858115][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.858363][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.858574][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.858810][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.861944][   T68] ------------[ cut here ]------------
| [   87.862118][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.862402][   T68] Modules linked in: ipvtap ipvlan
| [   87.862909][   T68] Tainted: [W]=WARN
[   87.863054][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.863252][   T68] Workqueue: netns cleanup_net
[   87.863428][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.863629][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.864124][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.864319][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d4e9540 RCX: 1ff4000000092eed
[   87.864540][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d4e95fc
[   87.864889][   T68] RBP: ff1100000fcb4000 R08: 1fe2200001a9d2c1 R09: ff110000090e2ed0
[   87.865233][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.865560][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.865900][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.866254][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.866511][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   87.866805][   T68] PKRU: 55555554
[   87.866988][   T68] Call Trace:
[   87.867172][   T68]  <TASK>
[   87.867329][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.867576][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.867845][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.868090][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.868306][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.868520][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.868757][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.869004][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.869221][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.869436][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.869672][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.869896][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.870105][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.870320][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.870534][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.870768][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.870989][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.871203][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.871423][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.871638][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.871873][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.872104][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.872318][   T68]  kthread (kernel/kthread.c:436)
[   87.872533][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.872792][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.873007][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.873253][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.873495][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.873731][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.873952][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.892957][   T68] ------------[ cut here ]------------
| [   87.893138][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.893433][   T68] Modules linked in: ipvtap ipvlan
| [   87.893962][   T68] Tainted: [W]=WARN
[   87.894102][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.894307][   T68] Workqueue: netns cleanup_net
[   87.894494][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.894784][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.895335][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   87.895600][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d4e9700 RCX: 1ff4000000092eaf
[   87.895908][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d4e97bc
[   87.896193][   T68] RBP: ff1100000e4ac000 R08: 1fe2200001a9d2f9 R09: ff110000090e2ed0
[   87.896476][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   87.896782][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   87.897067][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.897384][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.897637][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   87.897947][   T68] PKRU: 55555554
[   87.898138][   T68] Call Trace:
[   87.898327][   T68]  <TASK>
[   87.898489][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   87.898734][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   87.898928][   T68]  netif_close_many (net/core/dev.c:1804)
[   87.899112][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.899288][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.899463][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.899642][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   87.899839][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   87.900050][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   87.900259][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.900435][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.900606][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   87.900803][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.901015][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.901192][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   87.901370][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   87.901547][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.901741][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   87.901922][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   87.902100][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.902273][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.902452][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.902631][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.902832][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.903015][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.903193][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.903374][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.903552][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.903742][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.903922][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.904097][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.904267][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.904444][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.904620][   T68]  kthread (kernel/kthread.c:436)
[   87.904810][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.905018][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.905193][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.905368][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.905571][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.905770][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.905948][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.908712][   T68] ------------[ cut here ]------------
| [   87.908885][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.909170][   T68] Modules linked in: ipvtap ipvlan
| [   87.909973][   T68] Tainted: [W]=WARN
[   87.910110][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.910322][   T68] Workqueue: netns cleanup_net
[   87.910497][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.910720][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.911192][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   87.911391][   T68] RAX: 00000000ffffffa6 RBX: ff11000018db4900 RCX: 1ff4000000092ed5
[   87.911616][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000018db49bc
[   87.911858][   T68] RBP: ff1100000e4ac000 R08: 1fe22000031b6939 R09: ff110000090e2ed0
[   87.912088][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.912312][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.912541][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.912822][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.913019][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   87.913247][   T68] PKRU: 55555554
[   87.913384][   T68] Call Trace:
[   87.913521][   T68]  <TASK>
[   87.913632][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.913857][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.914058][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.914229][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   87.914402][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   87.914570][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.914767][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   87.914941][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   87.915114][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.915284][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.915458][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.915628][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.915818][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.915993][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.916161][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.916331][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.916504][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.916683][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.916867][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.917039][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.917208][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.917378][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.917547][   T68]  kthread (kernel/kthread.c:436)
[   87.917707][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.917908][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.918079][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.918247][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.918449][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.918620][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.918807][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.950577][   T68] ------------[ cut here ]------------
| [   87.950771][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.951057][   T68] Modules linked in: ipvtap ipvlan
| [   87.951549][   T68] Tainted: [W]=WARN
[   87.951704][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.951903][   T68] Workqueue: netns cleanup_net
[   87.952077][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.952281][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.952771][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.952971][   T68] RAX: 00000000ffffffa6 RBX: ff11000013984c80 RCX: 1ff4000000092eed
[   87.953199][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013984d3c
[   87.953421][   T68] RBP: ff11000012d81000 R08: 1fe22000027309a9 R09: ff110000090e2ed0
[   87.953645][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.953888][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.954116][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.954370][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.954602][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   87.954916][   T68] PKRU: 55555554
[   87.955066][   T68] Call Trace:
[   87.955201][   T68]  <TASK>
[   87.955310][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.955511][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.955727][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.955922][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.956097][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.956269][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.956443][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.956612][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.956801][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.956970][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.957150][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.957320][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.957483][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.957699][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.957891][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.958067][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.958239][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.958410][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.958582][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.958771][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.958936][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.959105][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.959275][   T68]  kthread (kernel/kthread.c:436)
[   87.959410][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.959605][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.959793][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.959959][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.960158][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.960357][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.960525][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.963172][   T68] ------------[ cut here ]------------
| [   87.963336][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.963609][   T68] Modules linked in: ipvtap ipvlan
| [   87.964510][   T68] Tainted: [W]=WARN
[   87.964689][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.964928][   T68] Workqueue: netns cleanup_net
[   87.965098][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.965298][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.965812][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.966006][   T68] RAX: 00000000ffffffa6 RBX: ff110000152b7a80 RCX: 1ff4000000092eed
[   87.966226][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000152b7b3c
[   87.966476][   T68] RBP: ff11000012d74000 R08: 1fe2200002a56f69 R09: ff110000090e2ed0
[   87.966717][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.966941][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.967162][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.967411][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.967605][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   87.967849][   T68] PKRU: 55555554
[   87.967983][   T68] Call Trace:
[   87.968117][   T68]  <TASK>
[   87.968247][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.968455][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.968645][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.968860][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.969027][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.969190][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.969360][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.969528][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.969712][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.969877][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.970046][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.970212][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.970376][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.970549][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.970738][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.970905][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.971100][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.971265][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.971434][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.971602][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.971789][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.971963][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.972129][   T68]  kthread (kernel/kthread.c:436)
[   87.972265][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.972456][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.972622][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.972805][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.972999][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.973168][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.973333][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.975970][   T68] ------------[ cut here ]------------
| [   87.976137][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.976410][   T68] Modules linked in: ipvtap ipvlan
| [   87.977344][   T68] Tainted: [W]=WARN
[   87.977529][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.977806][   T68] Workqueue: netns cleanup_net
[   87.978027][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.978281][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.978826][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.979081][   T68] RAX: 00000000ffffffa6 RBX: ff11000015588c80 RCX: 1ff4000000092eed
[   87.979351][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015588d3c
[   87.979626][   T68] RBP: ff11000012d51000 R08: 1fe2200002ab11a9 R09: ff110000090e2ed0
[   87.979924][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.980216][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.980493][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.980817][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.981063][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   87.981338][   T68] PKRU: 55555554
[   87.981519][   T68] Call Trace:
[   87.981720][   T68]  <TASK>
[   87.981879][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.982165][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.982458][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.982757][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.983019][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.983282][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.983544][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.983762][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.983963][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.984138][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.984316][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.984522][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.984721][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.984895][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.985062][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.985234][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.985409][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.985578][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.985773][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.985949][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.986121][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.986293][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.986533][   T68]  kthread (kernel/kthread.c:436)
[   87.986697][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.986894][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.987064][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.987242][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.987442][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.987612][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.987805][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.991009][   T68] ------------[ cut here ]------------
| [   87.991182][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.991525][   T68] Modules linked in: ipvtap ipvlan
| [   87.992237][   T68] Tainted: [W]=WARN
[   87.992452][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.992811][   T68] Workqueue: netns cleanup_net
[   87.993025][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.993272][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.993875][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.994115][   T68] RAX: 00000000ffffffa6 RBX: ff11000015589000 RCX: 1ff4000000092eed
[   87.994377][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000155890bc
[   87.994643][   T68] RBP: ff1100000f011000 R08: 1fe2200002ab1219 R09: ff110000090e2ed0
[   87.994976][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.995239][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.995503][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   87.995894][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.996132][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   87.996397][   T68] PKRU: 55555554
[   87.996573][   T68] Call Trace:
[   87.996770][   T68]  <TASK>
[   87.996923][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.997307][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.997545][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.997773][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.997984][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.998192][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.998401][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.998609][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.998840][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.999047][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.999263][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.999470][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.999698][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.999950][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.000206][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.000478][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.000758][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.001014][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.001277][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.001534][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.001807][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.002001][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.002161][   T68]  kthread (kernel/kthread.c:436)
[   88.002296][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.002488][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.002665][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.002841][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.003032][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.003199][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.003364][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.006002][   T68] ------------[ cut here ]------------
| [   88.006231][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.006504][   T68] Modules linked in: ipvtap ipvlan
| [   88.007493][   T68] Tainted: [W]=WARN
[   88.007689][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.007935][   T68] Workqueue: netns cleanup_net
[   88.008154][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.008402][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.008936][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.009177][   T68] RAX: 00000000ffffffa6 RBX: ff11000015589380 RCX: 1ff4000000092eed
[   88.009455][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001558943c
[   88.009746][   T68] RBP: ff11000005961000 R08: 1fe2200002ab1289 R09: ff110000090e2ed0
[   88.010014][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.010280][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.010548][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.010872][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.011113][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.011381][   T68] PKRU: 55555554
[   88.011559][   T68] Call Trace:
[   88.011756][   T68]  <TASK>
[   88.011911][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.012152][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.012389][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.012601][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.012837][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.013047][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.013258][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.013471][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.013707][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.013984][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.014235][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.014503][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.014777][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.015038][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.015292][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.015514][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.015702][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.015870][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.016041][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.016208][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.016375][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.016542][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.016732][   T68]  kthread (kernel/kthread.c:436)
[   88.016870][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.017063][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.017230][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.017397][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.017588][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.017774][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.017941][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.031409][   T68] ------------[ cut here ]------------
| [   88.031585][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.031910][   T68] Modules linked in: ipvtap ipvlan
| [   88.032419][   T68] Tainted: [W]=WARN
[   88.032562][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.032846][   T68] Workqueue: netns cleanup_net
[   88.033077][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.033370][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.033928][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   88.034179][   T68] RAX: 00000000ffffffa6 RBX: ff11000015589540 RCX: 1ff4000000092eaf
[   88.034459][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000155895fc
[   88.034760][   T68] RBP: ff1100000fc11000 R08: 1fe2200002ab12c1 R09: ff110000090e2ed0
[   88.035022][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   88.035252][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   88.035486][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.035990][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.036196][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.036428][   T68] PKRU: 55555554
[   88.036569][   T68] Call Trace:
[   88.036736][   T68]  <TASK>
[   88.036849][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   88.037024][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   88.037168][   T68]  netif_close_many (net/core/dev.c:1804)
[   88.037340][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.037508][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.037700][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.037872][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   88.038043][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   88.038257][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   88.038459][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.038630][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.038824][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   88.038998][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.039201][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.039376][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.039549][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.039742][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.039917][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.040093][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.040266][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.040436][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.040609][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.040805][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.040976][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.041151][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.041323][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.041495][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.041684][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.041864][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.042040][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.042213][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.042384][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.042556][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.042748][   T68]  kthread (kernel/kthread.c:436)
[   88.042891][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.043090][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.043261][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.043433][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.043635][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.043825][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.044001][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.047122][   T68] ------------[ cut here ]------------
| [   88.047285][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.047564][   T68] Modules linked in: ipvtap ipvlan
| [   88.048606][   T68] Tainted: [W]=WARN
[   88.048835][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.049078][   T68] Workqueue: netns cleanup_net
[   88.049296][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.049568][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.050101][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   88.050367][   T68] RAX: 00000000ffffffa6 RBX: ff1100001654b700 RCX: 1ff4000000092ed5
[   88.050647][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001654b7bc
[   88.051021][   T68] RBP: ff1100000fc11000 R08: 1fe2200002ca96f9 R09: ff110000090e2ed0
[   88.051292][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.051581][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.051872][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.052127][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.052321][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.052545][   T68] PKRU: 55555554
[   88.052700][   T68] Call Trace:
[   88.052836][   T68]  <TASK>
[   88.052945][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.053147][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.053349][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.053519][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.053708][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.053878][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.054046][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.054213][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.054384][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.054549][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.054741][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.054909][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.055075][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.055241][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.055407][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.055575][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.055773][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.055939][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.056110][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.056306][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.056473][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.056640][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.056827][   T68]  kthread (kernel/kthread.c:436)
[   88.056968][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.057164][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.057331][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.057501][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.057743][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.057912][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.058081][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.090553][   T68] ------------[ cut here ]------------
| [   88.090816][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.091116][   T68] Modules linked in: ipvtap ipvlan
| [   88.091602][   T68] Tainted: [W]=WARN
[   88.091757][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.091950][   T68] Workqueue: netns cleanup_net
[   88.092120][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.092329][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.092802][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.092995][   T68] RAX: 00000000ffffffa6 RBX: ff1100000caa7540 RCX: 1ff4000000092eed
[   88.093213][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000caa75fc
[   88.093430][   T68] RBP: ff1100000ff64000 R08: 1fe2200001954ec1 R09: ff110000090e2ed0
[   88.093648][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.093893][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.094112][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.094360][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.094552][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.094793][   T68] PKRU: 55555554
[   88.094926][   T68] Call Trace:
[   88.095058][   T68]  <TASK>
[   88.095165][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.095361][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.095551][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.095736][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.095903][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.096068][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.096232][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.096397][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.096562][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.096745][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.096913][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.097078][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.097240][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.097424][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.097589][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.097775][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.097946][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.098113][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.098280][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.098446][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.098617][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.098799][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.098963][   T68]  kthread (kernel/kthread.c:436)
[   88.099097][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.099289][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.099457][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.099624][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.099837][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.100005][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.100171][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.102748][   T68] ------------[ cut here ]------------
| [   88.102906][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.103176][   T68] Modules linked in: ipvtap ipvlan
| [   88.103752][   T68] Tainted: [W]=WARN
[   88.103884][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.104072][   T68] Workqueue: netns cleanup_net
[   88.104271][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.104467][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.104947][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.105138][   T68] RAX: 00000000ffffffa6 RBX: ff11000016d92c80 RCX: 1ff4000000092eed
[   88.105354][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016d92d3c
[   88.105571][   T68] RBP: ff11000012f3c000 R08: 1fe2200002db25a9 R09: ff110000090e2ed0
[   88.105810][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.106026][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.106244][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.106492][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.106708][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.106930][   T68] PKRU: 55555554
[   88.107063][   T68] Call Trace:
[   88.107196][   T68]  <TASK>
[   88.107304][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.107499][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.107708][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.107873][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.108036][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.108199][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.108365][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.108534][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.108719][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.108883][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.109055][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.109220][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.109382][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.109549][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.109733][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.109901][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.110074][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.110241][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.110410][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.110577][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.110761][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.110956][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.111121][   T68]  kthread (kernel/kthread.c:436)
[   88.111258][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.111454][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.111648][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.111840][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.112032][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.112196][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.112358][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.114934][   T68] ------------[ cut here ]------------
| [   88.115096][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.115386][   T68] Modules linked in: ipvtap ipvlan
| [   88.115883][   T68] Tainted: [W]=WARN
[   88.116018][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.116239][   T68] Workqueue: netns cleanup_net
[   88.116404][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.116601][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.117075][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.117295][   T68] RAX: 00000000ffffffa6 RBX: ff11000016d93380 RCX: 1ff4000000092eed
[   88.117511][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016d9343c
[   88.117745][   T68] RBP: ff11000012f19000 R08: 1fe2200002db2689 R09: ff110000090e2ed0
[   88.117965][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.118182][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.118404][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.118665][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.118865][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.119090][   T68] PKRU: 55555554
[   88.119224][   T68] Call Trace:
[   88.119355][   T68]  <TASK>
[   88.119491][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.119710][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.119904][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.120097][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.120260][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.120422][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.120588][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.120777][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.120945][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.121105][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.121272][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.121441][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.121608][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.121804][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.121968][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.122132][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.122299][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.122462][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.122629][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.122813][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.122979][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.123146][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.123307][   T68]  kthread (kernel/kthread.c:436)
[   88.123441][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.123630][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.123812][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.123978][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.124169][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.124334][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.124497][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.126853][   T68] ------------[ cut here ]------------
| [   88.127009][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.127291][   T68] Modules linked in: ipvtap ipvlan
| [   88.127786][   T68] Tainted: [W]=WARN
[   88.127918][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.128126][   T68] Workqueue: netns cleanup_net
[   88.128291][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.128486][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.128960][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.129155][   T68] RAX: 00000000ffffffa6 RBX: ff11000016d93700 RCX: 1ff4000000092eed
[   88.129373][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016d937bc
[   88.129597][   T68] RBP: ff11000005151000 R08: 1fe2200002db26f9 R09: ff110000090e2ed0
[   88.129831][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.130052][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.130276][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.130528][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.130739][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.130961][   T68] PKRU: 55555554
[   88.131094][   T68] Call Trace:
[   88.131225][   T68]  <TASK>
[   88.131332][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.131528][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.131736][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.131902][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.132065][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.132227][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.132396][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.132563][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.132750][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.132914][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.133150][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.133321][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.133488][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.133669][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.133912][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.134095][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.134296][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.134466][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.134635][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.134825][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.134996][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.135163][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.135332][   T68]  kthread (kernel/kthread.c:436)
[   88.135543][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.135762][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.135935][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.136110][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.136382][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.136628][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.136815][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.139875][   T68] ------------[ cut here ]------------
| [   88.140110][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.140386][   T68] Modules linked in: ipvtap ipvlan
| [   88.141033][   T68] Tainted: [W]=WARN
[   88.141169][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.141464][   T68] Workqueue: netns cleanup_net
[   88.141730][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.141936][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.142487][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.142706][   T68] RAX: 00000000ffffffa6 RBX: ff11000016d93a80 RCX: 1ff4000000092eed
[   88.142928][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016d93b3c
[   88.143228][   T68] RBP: ff1100000ea81000 R08: 1fe2200002db2769 R09: ff110000090e2ed0
[   88.143451][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.143684][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.144024][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.144349][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.144625][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.144945][   T68] PKRU: 55555554
[   88.145084][   T68] Call Trace:
[   88.145216][   T68]  <TASK>
[   88.145325][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.145523][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.145809][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.145981][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.146150][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.146316][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.146551][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.146735][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.146905][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.147068][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.147311][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.147476][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.147636][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.147823][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.148058][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.148230][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.148401][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.148566][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.148764][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.148934][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.149104][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.149270][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.149508][   T68]  kthread (kernel/kthread.c:436)
[   88.149648][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.149867][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.150035][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.150272][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.150469][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.150635][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.150821][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.170204][   T68] ------------[ cut here ]------------
| [   88.170392][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.171096][   T68] Modules linked in: ipvtap ipvlan
| [   88.171637][   T68] Tainted: [W]=WARN
[   88.171818][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.172022][   T68] Workqueue: netns cleanup_net
[   88.172206][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.172416][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.172913][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   88.173112][   T68] RAX: 00000000ffffffa6 RBX: ff11000016d93c40 RCX: 1ff4000000092eaf
[   88.173347][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016d93cfc
[   88.173583][   T68] RBP: ff11000005fe1000 R08: 1fe2200002db27a1 R09: ff110000090e2ed0
[   88.173836][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   88.174063][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   88.174292][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.174553][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.174771][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.174998][   T68] PKRU: 55555554
[   88.175135][   T68] Call Trace:
[   88.175272][   T68]  <TASK>
[   88.175380][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   88.175555][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   88.175713][   T68]  netif_close_many (net/core/dev.c:1804)
[   88.175911][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.176079][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.176249][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.176418][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   88.176588][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   88.176805][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   88.177006][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.177177][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.177364][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   88.177536][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.177769][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.177945][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.178117][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.178291][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.178473][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.178643][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.178834][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.179000][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.179174][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.179356][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.179533][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.179727][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.179908][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.180080][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.180251][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.180421][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.180595][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.180786][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.180958][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.181129][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.181297][   T68]  kthread (kernel/kthread.c:436)
[   88.181436][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.181702][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.181883][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.182057][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.182259][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.182429][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.182597][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.185384][   T68] ------------[ cut here ]------------
| [   88.185545][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.186269][   T68] Modules linked in: ipvtap ipvlan
| [   88.186871][   T68] Tainted: [W]=WARN
[   88.187068][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.187307][   T68] Workqueue: netns cleanup_net
[   88.187523][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.187791][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.188345][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   88.188589][   T68] RAX: 00000000ffffffa6 RBX: ff110000150db700 RCX: 1ff4000000092ed5
[   88.188874][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000150db7bc
[   88.189141][   T68] RBP: ff11000005fe1000 R08: 1fe2200002a1b6f9 R09: ff110000090e2ed0
[   88.189469][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.189758][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.190038][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.190341][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.190612][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.190903][   T68] PKRU: 55555554
[   88.191084][   T68] Call Trace:
[   88.191265][   T68]  <TASK>
[   88.191419][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.191686][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.191940][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.192154][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.192365][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.192591][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.192850][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.193094][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.193306][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.193475][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.193646][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.193833][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.193997][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.194163][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.194330][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.194497][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.194698][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.194878][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.195047][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.195226][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.195392][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.195559][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.195893][   T68]  kthread (kernel/kthread.c:436)
[   88.196033][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.196235][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.196400][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.196565][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.196779][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.196960][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.197130][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.229950][   T68] ------------[ cut here ]------------
| [   88.230152][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.230461][   T68] Modules linked in: ipvtap ipvlan
| [   88.231045][   T68] Tainted: [W]=WARN
[   88.231189][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.231382][   T68] Workqueue: netns cleanup_net
[   88.231552][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.231802][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.232296][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.232492][   T68] RAX: 00000000ffffffa6 RBX: ff11000017808e40 RCX: 1ff4000000092eed
[   88.232775][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000017808efc
[   88.233016][   T68] RBP: ff110000130b1000 R08: 1fe2200002f011e1 R09: ff110000090e2ed0
[   88.233236][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.233457][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.233701][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.233982][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.234181][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.234407][   T68] PKRU: 55555554
[   88.234544][   T68] Call Trace:
[   88.234702][   T68]  <TASK>
[   88.234825][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.235053][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.235256][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.235419][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.235586][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.235768][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.235934][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.236099][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.236267][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.236430][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.236604][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.236791][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.236954][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.237135][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.237308][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.237477][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.237674][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.237853][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.238024][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.238190][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.238365][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.238535][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.238723][   T68]  kthread (kernel/kthread.c:436)
[   88.238859][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.239067][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.239233][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.239400][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.239594][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.240095][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.240262][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.242878][   T68] ------------[ cut here ]------------
| [   88.243061][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.243332][   T68] Modules linked in: ipvtap ipvlan
| [   88.244202][   T68] Tainted: [W]=WARN
[   88.244350][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.244559][   T68] Workqueue: netns cleanup_net
[   88.244749][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.244957][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.245470][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.245708][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d756740 RCX: 1ff4000000092eed
[   88.245932][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7567fc
[   88.246157][   T68] RBP: ff1100001308c000 R08: 1fe2200001aead01 R09: ff110000090e2ed0
[   88.246392][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.246622][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.246861][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.247115][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.247306][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.247535][   T68] PKRU: 55555554
[   88.247683][   T68] Call Trace:
[   88.247828][   T68]  <TASK>
[   88.247937][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.248161][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.248366][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.248531][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.248719][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.248886][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.249060][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.249227][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.249393][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.249588][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.249779][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.249944][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.250107][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.250274][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.250436][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.250604][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.250793][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.250964][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.251166][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.251343][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.251510][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.251703][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.251875][   T68]  kthread (kernel/kthread.c:436)
[   88.252011][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.252206][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.252372][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.252565][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.252777][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.252942][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.253132][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.255806][   T68] ------------[ cut here ]------------
| [   88.255978][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.256278][   T68] Modules linked in: ipvtap ipvlan
| [   88.257167][   T68] Tainted: [W]=WARN
[   88.257350][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.257599][   T68] Workqueue: netns cleanup_net
[   88.257848][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.258094][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.258601][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.258863][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d756e40 RCX: 1ff4000000092eed
[   88.259165][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d756efc
[   88.259429][   T68] RBP: ff1100000ea21000 R08: 1fe2200001aeade1 R09: ff110000090e2ed0
[   88.259714][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.259980][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.260247][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.260567][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.260871][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.261144][   T68] PKRU: 55555554
[   88.261341][   T68] Call Trace:
[   88.261520][   T68]  <TASK>
[   88.261686][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.261938][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.262196][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.262408][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.262617][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.262843][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.263066][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.263331][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.263598][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.263868][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.264124][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.264380][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.264647][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.265020][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.265213][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.265378][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.265571][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.265778][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.265955][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.266122][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.266318][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.266485][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.266685][   T68]  kthread (kernel/kthread.c:436)
[   88.266835][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.267029][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.267194][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.267364][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.267558][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.267742][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.267979][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.270567][   T68] ------------[ cut here ]------------
| [   88.270759][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.271032][   T68] Modules linked in: ipvtap ipvlan
| [   88.271564][   T68] Tainted: [W]=WARN
[   88.271922][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.272161][   T68] Workqueue: netns cleanup_net
[   88.272377][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.272646][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.273217][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.273459][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d7571c0 RCX: 1ff4000000092eed
[   88.273772][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d75727c
[   88.274050][   T68] RBP: ff11000013031000 R08: 1fe2200001aeae51 R09: ff110000090e2ed0
[   88.274312][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.274574][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.274865][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.275166][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.275403][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.275704][   T68] PKRU: 55555554
[   88.275907][   T68] Call Trace:
[   88.276085][   T68]  <TASK>
[   88.276237][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.276535][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.276794][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.277003][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.277231][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.277438][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.277647][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.277919][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.278155][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.278372][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.278647][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.279018][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.279269][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.279524][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.279799][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.280070][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.280325][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.280531][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.280715][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.280881][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.281067][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.281237][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.281402][   T68]  kthread (kernel/kthread.c:436)
[   88.281538][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.281747][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.281916][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.282080][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.282272][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.282435][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.282600][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.285057][   T68] ------------[ cut here ]------------
| [   88.285215][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.285489][   T68] Modules linked in: ipvtap ipvlan
| [   88.286507][   T68] Tainted: [W]=WARN
[   88.286708][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.286969][   T68] Workqueue: netns cleanup_net
[   88.287182][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.287430][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.287962][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.288201][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d757380 RCX: 1ff4000000092eed
[   88.288462][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d75743c
[   88.288778][   T68] RBP: ff11000013019000 R08: 1fe2200001aeae89 R09: ff110000090e2ed0
[   88.289060][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.289325][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.289590][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.289906][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.290142][   T68] CR2: 00007f6e3b827310 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.290430][   T68] PKRU: 55555554
[   88.290607][   T68] Call Trace:
[   88.290806][   T68]  <TASK>
[   88.291117][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.291360][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.291597][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.291828][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.292040][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.292247][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.292457][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.292682][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.292922][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.293154][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.293366][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.293591][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.293901][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.294165][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.294425][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.294715][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.294981][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.295238][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.295500][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.295791][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.295995][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.296169][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.296335][   T68]  kthread (kernel/kthread.c:436)
[   88.296473][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.296714][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.296892][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.297066][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.297260][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.297449][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.297617][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.310961][   T68] ------------[ cut here ]------------
| [   88.311121][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   88.311394][   T68] Modules linked in: ipvtap ipvlan
| [   88.311829][   T68] Tainted: [W]=WARN
[   88.311930][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.312085][   T68] Workqueue: netns cleanup_net
[   88.312212][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.312385][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.312847][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   88.313003][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d757540 RCX: 1ff4000000092eaf
[   88.313189][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7575fc
[   88.313377][   T68] RBP: ff1100000fd41000 R08: 1fe2200001aeaec1 R09: ff110000090e2ed0
[   88.313560][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   88.313755][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   88.313958][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   88.314176][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.314332][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d005 CR4: 0000000000771ef0
[   88.314521][   T68] PKRU: 55555554
[   88.314612][   T68] Call Trace:
[   88.314723][   T68]  <TASK>
[   88.314788][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   88.314914][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   88.315010][   T68]  netif_close_many (net/core/dev.c:1804)
[   88.315148][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.315272][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.315395][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.315520][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   88.315645][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   88.315834][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   88.315989][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.316113][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.316249][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   88.316374][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.316528][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.316660][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.316794][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.316919][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.317042][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.317193][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.317341][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.317465][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.317593][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.317727][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.317850][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.317974][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.318096][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.318240][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.318368][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.318491][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.318618][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.318754][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.318876][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.318999][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.319121][   T68]  kthread (kernel/kthread.c:436)
[   88.319214][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.319366][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.319513][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.319640][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.319893][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.320016][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.320139][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.323080][   T68] ------------[ cut here ]------------
| [   88.323201][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   88.323431][   T68] Modules linked in: ipvtap ipvlan
| [   88.324278][   T68] Tainted: [W]=WARN
[   88.324374][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.324523][   T68] Workqueue: netns cleanup_net
[   88.324706][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.324878][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.325334][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   88.325486][   T68] RAX: 00000000ffffffa6 RBX: ff11000015ebf380 RCX: 1ff4000000092ed5
[   88.325715][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015ebf43c
[   88.325907][   T68] RBP: ff1100000fd41000 R08: 1fe2200002bd7e89 R09: ff110000090e2ed0
[   88.326093][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   88.326269][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.326445][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   88.326649][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.326846][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d005 CR4: 0000000000771ef0
[   88.327021][   T68] PKRU: 55555554
[   88.327108][   T68] Call Trace:
[   88.327195][   T68]  <TASK>
[   88.327256][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.327405][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.327552][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.327703][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.327821][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.327962][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.328079][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.328198][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.328325][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.328441][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.328564][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.328686][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.328807][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.328928][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.329043][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.329163][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.329283][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.329401][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.329524][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.329643][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.329777][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.329897][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.330015][   T68]  kthread (kernel/kthread.c:436)
[   88.330104][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.330273][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.330392][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.330509][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.330664][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.330807][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.330924][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.359488][   T68] ------------[ cut here ]------------
| [   88.359686][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.359999][   T68] Modules linked in: ipvtap ipvlan
| [   88.360490][   T68] Tainted: [W]=WARN
[   88.360627][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.360841][   T68] Workqueue: netns cleanup_net
[   88.361010][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.361211][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.361740][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.361932][   T68] RAX: 00000000ffffffa6 RBX: ff11000015ebeac0 RCX: 1ff4000000092eed
[   88.362175][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015ebeb7c
[   88.362395][   T68] RBP: ff1100000f921000 R08: 1fe2200002bd7d71 R09: ff110000090e2ed0
[   88.362612][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.362851][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.363071][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.363325][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.363517][   T68] CR2: 00007ff86072b600 CR3: 000000000e84c004 CR4: 0000000000771ef0
[   88.363760][   T68] PKRU: 55555554
[   88.363924][   T68] Call Trace:
[   88.364058][   T68]  <TASK>
[   88.364164][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.364395][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.364590][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.364777][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.364944][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.365109][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.365274][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.365439][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.365606][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.365791][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.365959][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.366123][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.366284][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.366449][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.366614][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.366799][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.366973][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.367137][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.367306][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.367472][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.367636][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.367825][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.367990][   T68]  kthread (kernel/kthread.c:436)
[   88.368126][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.368322][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.368488][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.368701][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.368911][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.369076][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.369240][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.371854][   T68] ------------[ cut here ]------------
| [   88.372013][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.372283][   T68] Modules linked in: ipvtap ipvlan
| [   88.372787][   T68] Tainted: [W]=WARN
[   88.372921][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.373111][   T68] Workqueue: netns cleanup_net
[   88.373280][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.373479][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.373956][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.374152][   T68] RAX: 00000000ffffffa6 RBX: ff1100001553bc40 RCX: 1ff4000000092eed
[   88.374383][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001553bcfc
[   88.374617][   T68] RBP: ff11000012bf4000 R08: 1fe2200002aa77a1 R09: ff110000090e2ed0
[   88.374852][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.375070][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.375292][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.375546][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.375765][   T68] CR2: 00007ff86072b600 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.375986][   T68] PKRU: 55555554
[   88.376119][   T68] Call Trace:
[   88.376252][   T68]  <TASK>
[   88.376358][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.376560][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.376788][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.376955][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.377122][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.377286][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.377453][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.377620][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.377809][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.377975][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.378143][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.378310][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.378471][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.378639][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.378823][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.379001][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.379175][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.379341][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.379510][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.379699][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.379867][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.380033][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.380200][   T68]  kthread (kernel/kthread.c:436)
[   88.380338][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.380534][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.380722][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.380887][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.381084][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.381251][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.381455][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.397385][   T68] ------------[ cut here ]------------
| [   88.397563][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.397901][   T68] Modules linked in: ipvtap ipvlan
| [   88.398385][   T68] Tainted: [W]=WARN
[   88.398520][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.398735][   T68] Workqueue: netns cleanup_net
[   88.398910][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.399111][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.399577][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.399793][   T68] RAX: 00000000ffffffa6 RBX: ff1100000ce663c0 RCX: 1ff4000000092eed
[   88.400014][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce6647c
[   88.400236][   T68] RBP: ff11000012991000 R08: 1fe22000019ccc91 R09: ff110000090e2ed0
[   88.400459][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.400699][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.400922][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.401171][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.401365][   T68] CR2: 00007ff86072b600 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.401587][   T68] PKRU: 55555554
[   88.401737][   T68] Call Trace:
[   88.401873][   T68]  <TASK>
[   88.402002][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.402206][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.402469][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.402640][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.402833][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.402999][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.403166][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.403333][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.403499][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.403676][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.403851][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.404020][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.404185][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.404354][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.404518][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.404704][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.404875][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.405040][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.405213][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.405386][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.405551][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.405739][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.405905][   T68]  kthread (kernel/kthread.c:436)
[   88.406042][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.406236][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.406402][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.406572][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.406789][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.406954][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.407119][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.409548][   T68] ------------[ cut here ]------------
| [   88.409728][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.410007][   T68] Modules linked in: ipvtap ipvlan
| [   88.410490][   T68] Tainted: [W]=WARN
[   88.410625][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.410865][   T68] Workqueue: netns cleanup_net
[   88.411036][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.411238][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.411730][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.411925][   T68] RAX: 00000000ffffffa6 RBX: ff1100000ce66740 RCX: 1ff4000000092eed
[   88.412149][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce667fc
[   88.412373][   T68] RBP: ff11000013261000 R08: 1fe22000019ccd01 R09: ff110000090e2ed0
[   88.412594][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.412863][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.413112][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.413378][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.413581][   T68] CR2: 00007ff86072b600 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.413829][   T68] PKRU: 55555554
[   88.413966][   T68] Call Trace:
[   88.414105][   T68]  <TASK>
[   88.414216][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.414421][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.414622][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.414810][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.414983][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.415151][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.415319][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.415492][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.415679][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.415857][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.416032][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.416210][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.416374][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.416542][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.416727][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.416912][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.417086][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.417252][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.417422][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.417591][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.417808][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.417977][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.418142][   T68]  kthread (kernel/kthread.c:436)
[   88.418280][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.418473][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.418640][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.418859][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.419052][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.419219][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.419397][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.421832][   T68] ------------[ cut here ]------------
| [   88.421997][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.422276][   T68] Modules linked in: ipvtap ipvlan
| [   88.423159][   T68] Tainted: [W]=WARN
[   88.423293][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.423486][   T68] Workqueue: netns cleanup_net
[   88.423667][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.423876][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.424333][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.424526][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cabc200 RCX: 1ff4000000092eed
[   88.424778][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cabc2bc
[   88.424999][   T68] RBP: ff1100000f80c000 R08: 1fe2200001957859 R09: ff110000090e2ed0
[   88.425221][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.425440][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.425676][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.425937][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.426129][   T68] CR2: 00007ff86072b600 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.426351][   T68] PKRU: 55555554
[   88.426485][   T68] Call Trace:
[   88.426620][   T68]  <TASK>
[   88.426745][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.426947][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.427138][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.427306][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.427472][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.427641][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.427830][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.428008][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.428185][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.428353][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.428554][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.428740][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.428904][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.429071][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.429236][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.429437][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.429608][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.429794][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.429963][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.430131][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.430296][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.430461][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.430626][   T68]  kthread (kernel/kthread.c:436)
[   88.430786][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.430979][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.431145][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.431312][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.431508][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.431687][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.431860][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.458506][   T68] ------------[ cut here ]------------
| [   88.458707][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.459000][   T68] Modules linked in: ipvtap ipvlan
| [   88.459507][   T68] Tainted: [W]=WARN
[   88.459647][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.459865][   T68] Workqueue: netns cleanup_net
[   88.460044][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.460254][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.460760][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   88.460964][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cabc900 RCX: 1ff4000000092eaf
[   88.461195][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cabc9bc
[   88.461428][   T68] RBP: ff1100000f8b4000 R08: 1fe2200001957939 R09: ff110000090e2ed0
[   88.461671][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   88.461913][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   88.462146][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.462407][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.462608][   T68] CR2: 00005559f71fda78 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.462937][   T68] PKRU: 55555554
[   88.463126][   T68] Call Trace:
[   88.463314][   T68]  <TASK>
[   88.463474][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   88.463721][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   88.463913][   T68]  netif_close_many (net/core/dev.c:1804)
[   88.464158][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.464433][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.464672][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.464903][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   88.465085][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   88.465290][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   88.465498][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.465682][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.465863][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   88.466035][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.466242][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.466417][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.466591][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.466783][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.466985][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.467155][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.467330][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.467500][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.467685][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.467887][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.468057][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.468229][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.468398][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.468572][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.468769][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.468942][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.469117][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.469289][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.469464][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.469637][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.469833][   T68]  kthread (kernel/kthread.c:436)
[   88.469974][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.470175][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.470345][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.470520][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.470744][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.470916][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.471088][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.473749][   T68] ------------[ cut here ]------------
| [   88.473918][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.474198][   T68] Modules linked in: ipvtap ipvlan
| [   88.474977][   T68] Tainted: [W]=WARN
[   88.475184][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.475448][   T68] Workqueue: netns cleanup_net
[   88.475690][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.475969][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.476436][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   88.476630][   T68] RAX: 00000000ffffffa6 RBX: ff11000017809a80 RCX: 1ff4000000092ed5
[   88.476878][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000017809b3c
[   88.477133][   T68] RBP: ff1100000f8b4000 R08: 1fe2200002f01369 R09: ff110000090e2ed0
[   88.477354][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.477577][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.477826][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.478109][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.478307][   T68] CR2: 00005559f71fda78 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.478536][   T68] PKRU: 55555554
[   88.478704][   T68] Call Trace:
[   88.478840][   T68]  <TASK>
[   88.478981][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.479212][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.479438][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.479645][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.479835][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.480003][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.480170][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.480340][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.480510][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.480688][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.480869][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.481037][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.481203][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.481371][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.481537][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.481727][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.481901][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.482071][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.482243][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.482412][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.482578][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.482769][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.482970][   T68]  kthread (kernel/kthread.c:436)
[   88.483112][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.483306][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.483477][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.483647][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.483893][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.484062][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.484232][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.518327][   T68] ------------[ cut here ]------------
| [   88.518511][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.518861][   T68] Modules linked in: ipvtap ipvlan
| [   88.519364][   T68] Tainted: [W]=WARN
[   88.519502][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.519721][   T68] Workqueue: netns cleanup_net
[   88.519932][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.520149][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.520635][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.520857][   T68] RAX: 00000000ffffffa6 RBX: ff1100000fd30e40 RCX: 1ff4000000092eed
[   88.521078][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fd30efc
[   88.521299][   T68] RBP: ff110000134ec000 R08: 1fe2200001fa61e1 R09: ff110000090e2ed0
[   88.521520][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.521764][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.521986][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.522241][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.522435][   T68] CR2: 00005559f71fda78 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.522669][   T68] PKRU: 55555554
[   88.522816][   T68] Call Trace:
[   88.522951][   T68]  <TASK>
[   88.523060][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.523257][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.523450][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.523615][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.523805][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.523974][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.524149][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.524318][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.524489][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.524670][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.524850][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.525016][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.525181][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.525351][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.525518][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.525711][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.525883][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.526047][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.526216][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.526383][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.526547][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.526736][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.526902][   T68]  kthread (kernel/kthread.c:436)
[   88.527038][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.527231][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.527397][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.527563][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.527779][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.527948][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.528113][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.530777][   T68] ------------[ cut here ]------------
| [   88.530952][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.531226][   T68] Modules linked in: ipvtap ipvlan
| [   88.532158][   T68] Tainted: [W]=WARN
[   88.532305][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.532497][   T68] Workqueue: netns cleanup_net
[   88.532679][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.532895][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.533365][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.533564][   T68] RAX: 00000000ffffffa6 RBX: ff1100000fd31540 RCX: 1ff4000000092eed
[   88.533804][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fd315fc
[   88.534024][   T68] RBP: ff110000133e1000 R08: 1fe2200001fa62c1 R09: ff110000090e2ed0
[   88.534277][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.534497][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.534754][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.535002][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.535198][   T68] CR2: 00005559f71fda78 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.535421][   T68] PKRU: 55555554
[   88.535555][   T68] Call Trace:
[   88.535761][   T68]  <TASK>
[   88.535918][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.536170][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.536424][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.536636][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.536895][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.537108][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.537323][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.537541][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.537778][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.537999][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.538219][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.538442][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.538713][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.538925][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.539139][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.539351][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.539565][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.539808][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.540030][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.540243][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.540455][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.540705][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.540917][   T68]  kthread (kernel/kthread.c:436)
[   88.541099][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.541351][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.541626][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.541913][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.542216][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.542473][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.542753][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.545723][   T68] ------------[ cut here ]------------
| [   88.545885][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.546183][   T68] Modules linked in: ipvtap ipvlan
| [   88.546706][   T68] Tainted: [W]=WARN
[   88.546854][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.547061][   T68] Workqueue: netns cleanup_net
[   88.547234][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.547440][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.547932][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.548125][   T68] RAX: 00000000ffffffa6 RBX: ff1100000fd31c40 RCX: 1ff4000000092eed
[   88.548344][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fd31cfc
[   88.548565][   T68] RBP: ff1100000f649000 R08: 1fe2200001fa63a1 R09: ff110000090e2ed0
[   88.548804][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.549021][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.549240][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.549493][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.549705][   T68] CR2: 00005559f71fda78 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.549927][   T68] PKRU: 55555554
[   88.550061][   T68] Call Trace:
[   88.550194][   T68]  <TASK>
[   88.550301][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.550497][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.550709][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.550874][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.551039][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.551203][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.551369][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.551535][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.551723][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.551886][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.552054][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.552218][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.552380][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.552550][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.552735][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.552901][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.553069][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.553233][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.553404][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.553570][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.553755][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.553928][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.554094][   T68]  kthread (kernel/kthread.c:436)
[   88.554228][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.554419][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.554584][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.554770][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.554963][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.555129][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.555296][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.557701][   T68] ------------[ cut here ]------------
| [   88.557862][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.558136][   T68] Modules linked in: ipvtap ipvlan
| [   88.558629][   T68] Tainted: [W]=WARN
[   88.559260][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.559504][   T68] Workqueue: netns cleanup_net
[   88.559741][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.559992][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.560505][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.560777][   T68] RAX: 00000000ffffffa6 RBX: ff1100001b6fd1c0 RCX: 1ff4000000092eed
[   88.561046][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001b6fd27c
[   88.561311][   T68] RBP: ff1100001349c000 R08: 1fe22000036dfa51 R09: ff110000090e2ed0
[   88.561589][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.561872][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.562142][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.562469][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.562731][   T68] CR2: 00005559f71fda78 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.563003][   T68] PKRU: 55555554
[   88.563184][   T68] Call Trace:
[   88.563366][   T68]  <TASK>
[   88.563524][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.563790][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.564028][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.564239][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.564451][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.564676][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.564895][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.565106][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.565317][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.565527][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.565760][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.565972][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.566184][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.566454][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.566729][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.567002][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.567264][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.567521][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.567802][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.568064][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.568331][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.568556][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.568770][   T68]  kthread (kernel/kthread.c:436)
[   88.568908][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.569101][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.569266][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.569432][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.569629][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.569820][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.569988][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.572385][   T68] ------------[ cut here ]------------
| [   88.572552][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.573304][   T68] Modules linked in: ipvtap ipvlan
| [   88.573947][   T68] Tainted: [W]=WARN
[   88.574137][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.574382][   T68] Workqueue: netns cleanup_net
[   88.574607][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.574913][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.575470][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.575739][   T68] RAX: 00000000ffffffa6 RBX: ff1100001b6fd000 RCX: 1ff4000000092eed
[   88.576039][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001b6fd0bc
[   88.576340][   T68] RBP: ff1100001344c000 R08: 1fe22000036dfa19 R09: ff110000090e2ed0
[   88.576617][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.576908][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.577180][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.577484][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.577755][   T68] CR2: 00005559f71fda78 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.578059][   T68] PKRU: 55555554
[   88.578245][   T68] Call Trace:
[   88.578427][   T68]  <TASK>
[   88.578647][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.579070][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.579356][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.579648][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.580020][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.580284][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.580490][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.580671][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.580854][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.581024][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.581199][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.581365][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.581531][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.581748][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.581916][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.582085][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.582255][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.582419][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.582596][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.582790][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.582989][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.583156][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.583322][   T68]  kthread (kernel/kthread.c:436)
[   88.583459][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.583667][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.583846][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.584014][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.584207][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.584373][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.584542][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.599217][   T68] ------------[ cut here ]------------
| [   88.599402][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.599713][   T68] Modules linked in: ipvtap ipvlan
| [   88.600218][   T68] Tainted: [W]=WARN
[   88.600356][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.600556][   T68] Workqueue: netns cleanup_net
[   88.600811][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.601074][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.601609][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   88.601880][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cabd8c0 RCX: 1ff4000000092eaf
[   88.602163][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cabd97c
[   88.602455][   T68] RBP: ff1100000f574000 R08: 1fe2200001957b31 R09: ff110000090e2ed0
[   88.602757][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   88.603049][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   88.603333][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.603712][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.603967][   T68] CR2: 00005559f71fda78 CR3: 000000004814d002 CR4: 0000000000771ef0
[   88.604248][   T68] PKRU: 55555554
[   88.604405][   T68] Call Trace:
[   88.604542][   T68]  <TASK>
[   88.604666][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   88.604850][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   88.604998][   T68]  netif_close_many (net/core/dev.c:1804)
[   88.605173][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.605343][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.605514][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.605707][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   88.605885][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   88.606094][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   88.606298][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.606475][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.606666][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   88.606853][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.607061][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.607237][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.607411][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.607583][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.607780][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.607956][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.608133][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.608306][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.608481][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.608668][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.608847][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.609025][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.609197][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.609372][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.609548][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.609741][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.609923][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.610101][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.610302][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.610481][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.610667][   T68]  kthread (kernel/kthread.c:436)
[   88.610818][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.611021][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.611195][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.611369][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.611572][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.611770][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.611951][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.614615][   T68] ------------[ cut here ]------------
| [   88.614777][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   88.615034][   T68] Modules linked in: ipvtap ipvlan
| [   88.615466][   T68] Tainted: [W]=WARN
[   88.615561][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.616164][   T68] Workqueue: netns cleanup_net
[   88.616341][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.616502][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.616993][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   88.617142][   T68] RAX: 00000000ffffffa6 RBX: ff11000012abb700 RCX: 1ff4000000092ed5
[   88.617319][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012abb7bc
[   88.617497][   T68] RBP: ff1100000f574000 R08: 1fe22000025576f9 R09: ff110000090e2ed0
[   88.617733][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   88.617924][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.618101][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   88.618307][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.618457][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   88.618639][   T68] PKRU: 55555554
[   88.618784][   T68] Call Trace:
[   88.618873][   T68]  <TASK>
[   88.618935][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.619086][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.619235][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.619357][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.619476][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.619596][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.619775][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.619898][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.620023][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.620140][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.620264][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.620385][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.620502][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.620622][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.620794][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.620915][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.621037][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.621165][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.621287][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.621410][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.621535][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.621709][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.621827][   T68]  kthread (kernel/kthread.c:436)
[   88.621916][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.622070][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.622192][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.622310][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.622459][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.622576][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.622749][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.655684][   T68] ------------[ cut here ]------------
| [   88.655842][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   88.656111][   T68] Modules linked in: ipvtap ipvlan
| [   88.656511][   T68] Tainted: [W]=WARN
[   88.656602][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.656765][   T68] Workqueue: netns cleanup_net
[   88.656890][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.657048][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.657502][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.657661][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b79a3c0 RCX: 1ff4000000092eed
[   88.657839][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b79a47c
[   88.658009][   T68] RBP: ff110000135cc000 R08: 1fe22000016f3491 R09: ff110000090e2ed0
[   88.658183][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   88.658362][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.658542][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   88.658757][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.658902][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   88.659100][   T68] PKRU: 55555554
[   88.659189][   T68] Call Trace:
[   88.659278][   T68]  <TASK>
[   88.659343][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.659522][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.659674][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.659805][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.659926][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.660042][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.660160][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.660299][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.660422][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.660545][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.660670][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.660792][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.660907][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.661026][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.661145][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.661261][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.661409][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.661524][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.661647][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.661777][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.661892][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.662009][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.662130][   T68]  kthread (kernel/kthread.c:436)
[   88.662221][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.662364][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.662480][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.662598][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.662756][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.662872][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.663006][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.665170][   T68] ------------[ cut here ]------------
| [   88.665298][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   88.665549][   T68] Modules linked in: ipvtap ipvlan
| [   88.666304][   T68] Tainted: [W]=WARN
[   88.666393][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.666543][   T68] Workqueue: netns cleanup_net
[   88.666767][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.666916][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.667357][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.667507][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b79ac80 RCX: 1ff4000000092eed
[   88.667685][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b79ad3c
[   88.667861][   T68] RBP: ff11000012ce1000 R08: 1fe22000016f35a9 R09: ff110000090e2ed0
[   88.668034][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   88.668214][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.668391][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   88.668593][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.668750][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   88.668923][   T68] PKRU: 55555554
[   88.669011][   T68] Call Trace:
[   88.669098][   T68]  <TASK>
[   88.669182][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.669330][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.669475][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.669594][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.669718][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.669838][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.669956][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.670073][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.670189][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.670303][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.670422][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.670539][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.670660][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.670807][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.670927][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.671046][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.671166][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.671282][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.671403][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.671519][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.671634][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.671763][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.671878][   T68]  kthread (kernel/kthread.c:436)
[   88.671964][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.672109][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.672224][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.672343][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.672499][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.672616][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.672744][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.674900][   T68] ------------[ cut here ]------------
| [   88.675026][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   88.675270][   T68] Modules linked in: ipvtap ipvlan
| [   88.676675][   T68] Tainted: [W]=WARN
[   88.676819][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.676965][   T68] Workqueue: netns cleanup_net
[   88.677085][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.677236][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.677649][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.677855][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b79b000 RCX: 1ff4000000092eed
[   88.678032][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b79b0bc
[   88.678212][   T68] RBP: ff11000009154000 R08: 1fe22000016f3619 R09: ff110000090e2ed0
[   88.678390][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   88.678561][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.678791][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   88.679017][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.679167][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   88.679339][   T68] PKRU: 55555554
[   88.679427][   T68] Call Trace:
[   88.679513][   T68]  <TASK>
[   88.679572][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.679794][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.679937][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.680054][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.680174][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.680289][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.680405][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.680522][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.680640][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.680824][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.680995][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.681111][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.681228][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.681345][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.681460][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.681577][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.681747][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.681870][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.681989][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.682105][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.682221][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.682338][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.682455][   T68]  kthread (kernel/kthread.c:436)
[   88.682544][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.682765][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.682885][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.682998][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.683149][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.683270][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.683391][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.686174][   T68] ------------[ cut here ]------------
| [   88.686336][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.686628][   T68] Modules linked in: ipvtap ipvlan
| [   88.687244][   T68] Tainted: [W]=WARN
[   88.687375][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.687585][   T68] Workqueue: netns cleanup_net
[   88.687775][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.687985][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.688508][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.688737][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b79b380 RCX: 1ff4000000092eed
[   88.688963][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b79b43c
[   88.689180][   T68] RBP: ff11000012b74000 R08: 1fe22000016f3689 R09: ff110000090e2ed0
[   88.689398][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.689615][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.689884][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.690136][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.690333][   T68] CR2: 00007fb95fbdb430 CR3: 000000001562f002 CR4: 0000000000771ef0
[   88.690563][   T68] PKRU: 55555554
[   88.690722][   T68] Call Trace:
[   88.690859][   T68]  <TASK>
[   88.690968][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.691197][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.691386][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.691549][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.691765][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.691934][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.692097][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.692260][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.692425][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.692587][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.692793][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.692959][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.693124][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.693288][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.693454][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.693626][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.693815][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.693979][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.694159][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.694327][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.694495][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.694680][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.694851][   T68]  kthread (kernel/kthread.c:436)
[   88.694985][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.695208][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.695373][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.695538][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.695750][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.695934][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.696118][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.698489][   T68] ------------[ cut here ]------------
| [   88.698708][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.698981][   T68] Modules linked in: ipvtap ipvlan
| [   88.699473][   T68] Tainted: [W]=WARN
[   88.699611][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.699829][   T68] Workqueue: netns cleanup_net
[   88.700006][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.700203][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.700686][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.700887][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b79b700 RCX: 1ff4000000092eed
[   88.701121][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b79b7bc
[   88.701343][   T68] RBP: ff1100000f0e1000 R08: 1fe22000016f36f9 R09: ff110000090e2ed0
[   88.701561][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.701802][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.702021][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.702270][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.702463][   T68] CR2: 00007fb95fbdb430 CR3: 000000004814d003 CR4: 0000000000771ef0
[   88.702724][   T68] PKRU: 55555554
[   88.702859][   T68] Call Trace:
[   88.702992][   T68]  <TASK>
[   88.703098][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.703292][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.703487][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.703667][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.703847][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.704015][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.704183][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.704356][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.704525][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.704707][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.704888][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.705054][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.705216][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.705381][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.705543][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.705732][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.705900][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.706088][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.706256][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.706421][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.706584][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.706787][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.706957][   T68]  kthread (kernel/kthread.c:436)
[   88.707096][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.707289][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.707457][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.707622][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.707834][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.708001][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.708198][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.722491][   T68] ------------[ cut here ]------------
| [   88.722735][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.723024][   T68] Modules linked in: ipvtap ipvlan
| [   88.723526][   T68] Tainted: [W]=WARN
[   88.723677][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.723930][   T68] Workqueue: netns cleanup_net
[   88.724122][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.724334][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.724911][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   88.725168][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b79b8c0 RCX: 1ff4000000092eaf
[   88.725453][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b79b97c
[   88.725759][   T68] RBP: ff11000008b59000 R08: 1fe22000016f3731 R09: ff110000090e2ed0
[   88.726042][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   88.726331][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   88.726611][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.726960][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.727229][   T68] CR2: 00007fb95fbdb430 CR3: 000000004814d003 CR4: 0000000000771ef0
[   88.727506][   T68] PKRU: 55555554
[   88.727734][   T68] Call Trace:
[   88.727922][   T68]  <TASK>
[   88.728083][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   88.728305][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   88.728495][   T68]  netif_close_many (net/core/dev.c:1804)
[   88.728752][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.728957][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.729164][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.729340][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   88.729513][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   88.729737][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   88.729941][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.730111][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.730281][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   88.730454][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.730670][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.730851][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.731023][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.731194][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.731366][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.731538][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.731730][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.731900][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.732074][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.732245][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.732415][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.732589][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.732779][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.732952][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.733141][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.733315][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.733492][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.733680][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.733858][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.734033][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.734206][   T68]  kthread (kernel/kthread.c:436)
[   88.734364][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.734565][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.734757][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.734942][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.735172][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.735343][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.735514][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.738310][   T68] ------------[ cut here ]------------
| [   88.738505][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.739245][   T68] Modules linked in: ipvtap ipvlan
| [   88.739862][   T68] Tainted: [W]=WARN
[   88.740056][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.740293][   T68] Workqueue: netns cleanup_net
[   88.740529][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.740813][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.741330][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   88.741565][   T68] RAX: 00000000ffffffa6 RBX: ff11000016da6580 RCX: 1ff4000000092ed5
[   88.741805][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016da663c
[   88.742027][   T68] RBP: ff11000008b59000 R08: 1fe2200002db4cc9 R09: ff110000090e2ed0
[   88.742252][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.742499][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.742748][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.743038][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.743239][   T68] CR2: 00007fb95fbdb430 CR3: 000000004814d003 CR4: 0000000000771ef0
[   88.743461][   T68] PKRU: 55555554
[   88.743623][   T68] Call Trace:
[   88.743779][   T68]  <TASK>
[   88.743915][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.744116][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.744313][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.744517][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.744712][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.744880][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.745044][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.745242][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.745408][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.745571][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.745761][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.745933][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.746108][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.746280][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.746447][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.746614][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.746807][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.746973][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.747179][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.747353][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.747519][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.747708][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.747874][   T68]  kthread (kernel/kthread.c:436)
[   88.748041][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.748246][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.748412][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.748592][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.748807][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.748973][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.749141][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.784620][   T68] ------------[ cut here ]------------
| [   88.784812][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.785097][   T68] Modules linked in: ipvtap ipvlan
| [   88.785585][   T68] Tainted: [W]=WARN
[   88.785740][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.785938][   T68] Workqueue: netns cleanup_net
[   88.786110][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.786309][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.786790][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.786980][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c871000 RCX: 1ff4000000092eed
[   88.787200][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c8710bc
[   88.787419][   T68] RBP: ff110000137cc000 R08: 1fe220000190e219 R09: ff110000090e2ed0
[   88.787635][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.787876][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.788105][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.788354][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.788547][   T68] CR2: 00007fb95fbdb430 CR3: 000000004814d003 CR4: 0000000000771ef0
[   88.788789][   T68] PKRU: 55555554
[   88.788922][   T68] Call Trace:
[   88.789058][   T68]  <TASK>
[   88.789170][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.789373][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.789566][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.789756][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.789924][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.790092][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.790261][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.790432][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.790602][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.790790][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.790963][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.791133][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.791326][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.791503][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.791679][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.791859][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.792026][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.792189][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.792372][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.792536][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.792721][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.792888][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.793051][   T68]  kthread (kernel/kthread.c:436)
[   88.793191][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.793391][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.793560][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.793748][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.793944][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.794110][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.794289][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.796902][   T68] ------------[ cut here ]------------
| [   88.797063][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.797337][   T68] Modules linked in: ipvtap ipvlan
| [   88.797841][   T68] Tainted: [W]=WARN
[   88.797974][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.798165][   T68] Workqueue: netns cleanup_net
[   88.798331][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.798527][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.799004][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.799196][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c871700 RCX: 1ff4000000092eed
[   88.799455][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c8717bc
[   88.799723][   T68] RBP: ff110000137a1000 R08: 1fe220000190e2f9 R09: ff110000090e2ed0
[   88.799941][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.800158][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.800412][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.800683][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.800884][   T68] CR2: 00007fb95fbdb430 CR3: 000000004814d003 CR4: 0000000000771ef0
[   88.801102][   T68] PKRU: 55555554
[   88.801235][   T68] Call Trace:
[   88.801404][   T68]  <TASK>
[   88.801511][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.801739][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.801932][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.802096][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.802262][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.802424][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.802739][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.802913][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.803084][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.803248][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.803417][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.803586][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.803766][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.803934][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.804135][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.804302][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.804473][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.804639][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.804914][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.805152][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.805542][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.805736][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.806241][   T68]  kthread (kernel/kthread.c:436)
[   88.806379][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.806569][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.806751][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.806987][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.807205][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.807374][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.807568][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.811068][   T68] ------------[ cut here ]------------
| [   88.811230][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.811574][   T68] Modules linked in: ipvtap ipvlan
| [   88.812165][   T68] Tainted: [W]=WARN
[   88.812332][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.812596][   T68] Workqueue: netns cleanup_net
[   88.812780][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.812985][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.813513][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.813757][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c871e00 RCX: 1ff4000000092eed
[   88.814055][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c871ebc
[   88.814272][   T68] RBP: ff11000013774000 R08: 1fe220000190e3d9 R09: ff110000090e2ed0
[   88.814494][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.814957][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.815175][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.815506][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.815738][   T68] CR2: 00007fb95fbdb430 CR3: 000000004814d003 CR4: 0000000000771ef0
[   88.815965][   T68] PKRU: 55555554
[   88.816096][   T68] Call Trace:
[   88.816297][   T68]  <TASK>
[   88.816402][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.816595][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.816802][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.817244][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.817410][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.817575][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.817811][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.818058][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.818224][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.818396][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.818563][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.818825][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.819001][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.819166][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.819328][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.819561][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.819747][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.819935][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.820103][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.820352][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.820517][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.820700][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.820864][   T68]  kthread (kernel/kthread.c:436)
[   88.821068][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.821258][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.821421][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.821586][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.821800][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.821970][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.822138][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.825060][   T68] ------------[ cut here ]------------
| [   88.825231][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.825502][   T68] Modules linked in: ipvtap ipvlan
| [   88.826006][   T68] Tainted: [W]=WARN
[   88.826143][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.826333][   T68] Workqueue: netns cleanup_net
[   88.826497][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.826725][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.827217][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.827409][   T68] RAX: 00000000ffffffa6 RBX: ff11000016da7380 RCX: 1ff4000000092eed
[   88.827624][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016da743c
[   88.827878][   T68] RBP: ff1100001375c000 R08: 1fe2200002db4e89 R09: ff110000090e2ed0
[   88.828929][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.829153][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.829393][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.829645][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.829854][   T68] CR2: 00007fb95fbdb430 CR3: 000000004814d003 CR4: 0000000000771ef0
[   88.830076][   T68] PKRU: 55555554
[   88.830209][   T68] Call Trace:
[   88.830341][   T68]  <TASK>
[   88.830446][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.830639][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.830848][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.831062][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.831229][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.831393][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.831556][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.831738][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.831910][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.832083][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.832252][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.832421][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.832590][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.832772][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.832935][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.833099][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.833313][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.833482][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.833810][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.833979][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.834160][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.834325][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.834487][   T68]  kthread (kernel/kthread.c:436)
[   88.834707][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.834901][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.835089][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.835257][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.835522][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.835706][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.835872][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.838800][   T68] ------------[ cut here ]------------
| [   88.838966][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.839236][   T68] Modules linked in: ipvtap ipvlan
| [   88.839975][   T68] Tainted: [W]=WARN
[   88.840188][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.840469][   T68] Workqueue: netns cleanup_net
[   88.840706][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.840952][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.841474][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.841732][   T68] RAX: 00000000ffffffa6 RBX: ff11000016da7700 RCX: 1ff4000000092eed
[   88.842028][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016da77bc
[   88.842293][   T68] RBP: ff1100001374c000 R08: 1fe2200002db4ef9 R09: ff110000090e2ed0
[   88.842571][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.842856][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.843119][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.843410][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.843682][   T68] CR2: 00007fb95fbdb430 CR3: 000000004814d003 CR4: 0000000000771ef0
[   88.843959][   T68] PKRU: 55555554
[   88.844206][   T68] Call Trace:
[   88.844385][   T68]  <TASK>
[   88.844608][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.844875][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.845115][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.845328][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.845536][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.845768][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.845977][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.846186][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.846397][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.846604][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.846860][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.847071][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.847275][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.847485][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.847779][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.848054][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.848320][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.848582][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.848935][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.849216][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.849487][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.849764][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.850007][   T68]  kthread (kernel/kthread.c:436)
[   88.850226][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.850464][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.850685][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.850903][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.851214][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.851422][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.851630][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.870646][   T68] ------------[ cut here ]------------
| [   88.870849][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   88.871108][   T68] Modules linked in: ipvtap ipvlan
| [   88.871536][   T68] Tainted: [W]=WARN
[   88.871627][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.871791][   T68] Workqueue: netns cleanup_net
[   88.871917][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.872077][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.872518][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   88.872682][   T68] RAX: 00000000ffffffa6 RBX: ff11000016da78c0 RCX: 1ff4000000092eaf
[   88.872869][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016da797c
[   88.873050][   T68] RBP: ff1100000fd61000 R08: 1fe2200002db4f31 R09: ff110000090e2ed0
[   88.873235][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   88.873417][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   88.873601][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   88.873821][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.873976][   T68] CR2: 00007ffe374dbfe0 CR3: 0000000009dc3006 CR4: 0000000000771ef0
[   88.874170][   T68] PKRU: 55555554
[   88.874266][   T68] Call Trace:
[   88.874360][   T68]  <TASK>
[   88.874425][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   88.874552][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   88.874655][   T68]  netif_close_many (net/core/dev.c:1804)
[   88.874782][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.874907][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.875028][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.875150][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   88.875273][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   88.875426][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   88.875578][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.875758][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.875879][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   88.876005][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.876158][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.876284][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.876407][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.876530][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.876714][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.876888][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.877013][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.877134][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.877258][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.877380][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.877500][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.877624][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.877807][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.877930][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.878056][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.878178][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.878306][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.878430][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.878552][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.878729][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.878853][   T68]  kthread (kernel/kthread.c:436)
[   88.878945][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.879095][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.879217][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.879339][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.879522][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.879704][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.879831][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.882438][   T68] ------------[ cut here ]------------
| [   88.882560][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   88.883249][   T68] Modules linked in: ipvtap ipvlan
| [   88.883640][   T68] Tainted: [W]=WARN
[   88.883782][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.883928][   T68] Workqueue: netns cleanup_net
[   88.884101][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.884258][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.884731][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   88.884878][   T68] RAX: 00000000ffffffa6 RBX: ff1100001ac671c0 RCX: 1ff4000000092ed5
[   88.885052][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001ac6727c
[   88.885225][   T68] RBP: ff1100000fd61000 R08: 1fe220000358ce51 R09: ff110000090e2ed0
[   88.885399][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   88.885577][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.885803][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   88.886006][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.886155][   T68] CR2: 00007ffe374dbfe0 CR3: 0000000009dc3006 CR4: 0000000000771ef0
[   88.886339][   T68] PKRU: 55555554
[   88.886426][   T68] Call Trace:
[   88.886513][   T68]  <TASK>
[   88.886574][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.886773][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.886922][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.887043][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.887163][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.887281][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.887398][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.887518][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.887637][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.887803][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.887927][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.888043][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.888159][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.888278][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.888397][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.888515][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.888636][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.888807][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.888929][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.889049][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.889168][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.889290][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.889407][   T68]  kthread (kernel/kthread.c:436)
[   88.889496][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.889641][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.889811][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.889930][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.890074][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.890193][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.890310][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.922123][   T68] ------------[ cut here ]------------
| [   88.922268][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   88.922505][   T68] Modules linked in: ipvtap ipvlan
| [   88.922917][   T68] Tainted: [W]=WARN
[   88.923006][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.923156][   T68] Workqueue: netns cleanup_net
[   88.923282][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.923441][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.923883][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.924037][   T68] RAX: 00000000ffffffa6 RBX: ff1100000bd17e00 RCX: 1ff4000000092eed
[   88.924224][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bd17ebc
[   88.924400][   T68] RBP: ff11000013839000 R08: 1fe22000017a2fd9 R09: ff110000090e2ed0
[   88.924585][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   88.924779][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.924959][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   88.925169][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.925324][   T68] CR2: 00007faaee73f668 CR3: 0000000004bf2005 CR4: 0000000000771ef0
[   88.925507][   T68] PKRU: 55555554
[   88.925597][   T68] Call Trace:
[   88.925697][   T68]  <TASK>
[   88.925764][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.925922][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.926071][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.926192][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.926315][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.926443][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.926561][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.926687][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.926816][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.926938][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.927061][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.927180][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.927301][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.927421][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.927540][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.927720][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.927900][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.928017][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.928139][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.928266][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.928385][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.928507][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.928627][   T68]  kthread (kernel/kthread.c:436)
[   88.928786][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.928936][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.929055][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.929172][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.929319][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.929435][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.929550][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.931918][   T68] ------------[ cut here ]------------
| [   88.932052][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   88.932282][   T68] Modules linked in: ipvtap ipvlan
| [   88.932928][   T68] Tainted: [W]=WARN
[   88.933017][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.933169][   T68] Workqueue: netns cleanup_net
[   88.933289][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.933441][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.933865][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.934016][   T68] RAX: 00000000ffffffa6 RBX: ff110000166ce580 RCX: 1ff4000000092eed
[   88.934189][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166ce63c
[   88.934362][   T68] RBP: ff110000138fc000 R08: 1fe2200002cd9cc9 R09: ff110000090e2ed0
[   88.934541][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   88.934727][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.934911][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   88.935114][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.935259][   T68] CR2: 00007fb0f2fc7c70 CR3: 000000000f396001 CR4: 0000000000771ef0
[   88.935440][   T68] PKRU: 55555554
[   88.935530][   T68] Call Trace:
[   88.935618][   T68]  <TASK>
[   88.935687][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.935846][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.935997][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.936112][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.936230][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.936352][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.936473][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.936598][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.936727][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.936854][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.936975][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.937091][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.937206][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.937326][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.937445][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.937563][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.937690][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.937816][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.937942][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.938062][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.938182][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.938304][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.938423][   T68]  kthread (kernel/kthread.c:436)
[   88.938514][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.938666][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.938791][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.938913][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.939062][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.939182][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.939305][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.941433][   T68] ------------[ cut here ]------------
| [   88.941548][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   88.942305][   T68] Modules linked in: ipvtap ipvlan
| [   88.942799][   T68] Tainted: [W]=WARN
[   88.942887][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.943031][   T68] Workqueue: netns cleanup_net
[   88.943152][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.943317][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.943833][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.944068][   T68] RAX: 00000000ffffffa6 RBX: ff110000166cec80 RCX: 1ff4000000092eed
[   88.944243][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166ced3c
[   88.944419][   T68] RBP: ff1100000fcd9000 R08: 1fe2200002cd9da9 R09: ff110000090e2ed0
[   88.944591][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   88.944865][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.945045][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   88.945252][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.945397][   T68] CR2: 00007fb0f2fc7c70 CR3: 000000000f396001 CR4: 0000000000771ef0
[   88.945572][   T68] PKRU: 55555554
[   88.945753][   T68] Call Trace:
[   88.945842][   T68]  <TASK>
[   88.945902][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.946050][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.946193][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.946309][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.946430][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.946546][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.946769][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.946887][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.947009][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.947123][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.947247][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.947364][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.947482][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.947600][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.947742][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.947859][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.947981][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.948101][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.948228][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.948347][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.948463][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.948579][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.948707][   T68]  kthread (kernel/kthread.c:436)
[   88.948794][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.948939][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.949056][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.949172][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.949317][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.949436][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.949552][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.951504][   T68] ------------[ cut here ]------------
| [   88.951618][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   88.951860][   T68] Modules linked in: ipvtap ipvlan
| [   88.952242][   T68] Tainted: [W]=WARN
[   88.952329][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.952474][   T68] Workqueue: netns cleanup_net
[   88.952596][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.952904][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.953325][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.953472][   T68] RAX: 00000000ffffffa6 RBX: ff110000166cf000 RCX: 1ff4000000092eed
[   88.953647][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166cf0bc
[   88.953874][   T68] RBP: ff110000138d4000 R08: 1fe2200002cd9e19 R09: ff110000090e2ed0
[   88.954103][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   88.954276][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.954450][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   88.954710][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.954855][   T68] CR2: 00007fb0f2fc7c70 CR3: 000000004814d003 CR4: 0000000000771ef0
[   88.955030][   T68] PKRU: 55555554
[   88.955117][   T68] Call Trace:
[   88.955204][   T68]  <TASK>
[   88.955265][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.955413][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.955559][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.955727][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.955851][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.955966][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.956085][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.956202][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.956320][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.956436][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.956560][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.956727][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.956844][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.956960][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.957075][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.957191][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.957310][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.957426][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.957547][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.957715][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.957831][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.957952][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.958069][   T68]  kthread (kernel/kthread.c:436)
[   88.958156][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.958301][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.958418][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.958534][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.958730][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.958848][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.958963][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.961292][   T68] ------------[ cut here ]------------
| [   88.961451][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.961748][   T68] Modules linked in: ipvtap ipvlan
| [   88.962227][   T68] Tainted: [W]=WARN
[   88.962361][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.962563][   T68] Workqueue: netns cleanup_net
[   88.962749][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.962949][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.963415][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   88.963607][   T68] RAX: 00000000ffffffa6 RBX: ff110000166cf380 RCX: 1ff4000000092eed
[   88.963848][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166cf43c
[   88.964068][   T68] RBP: ff11000012dac000 R08: 1fe2200002cd9e89 R09: ff110000090e2ed0
[   88.964289][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   88.964507][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   88.964748][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.965002][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.965195][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   88.965415][   T68] PKRU: 55555554
[   88.965547][   T68] Call Trace:
[   88.965702][   T68]  <TASK>
[   88.965811][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   88.966009][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.966204][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   88.966369][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   88.966538][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.966724][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   88.966891][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.967061][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   88.967229][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.967395][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.967565][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.967752][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.967917][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.968083][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.968249][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.968428][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.968630][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.968818][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.968992][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.969160][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.969327][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.969493][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.969670][   T68]  kthread (kernel/kthread.c:436)
[   88.969814][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.970010][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.970176][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.970341][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.970536][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.970720][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.970887][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.984433][   T68] ------------[ cut here ]------------
| [   88.984611][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   88.984924][   T68] Modules linked in: ipvtap ipvlan
| [   88.985438][   T68] Tainted: [W]=WARN
[   88.985578][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.985799][   T68] Workqueue: netns cleanup_net
[   88.985986][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   88.986192][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   88.986702][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   88.986913][   T68] RAX: 00000000ffffffa6 RBX: ff110000166cf540 RCX: 1ff4000000092eaf
[   88.987150][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166cf5fc
[   88.987386][   T68] RBP: ff1100000e6f4000 R08: 1fe2200002cd9ec1 R09: ff110000090e2ed0
[   88.987626][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   88.987890][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   88.988124][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   88.988385][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.988586][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   88.988841][   T68] PKRU: 55555554
[   88.988980][   T68] Call Trace:
[   88.989120][   T68]  <TASK>
[   88.989231][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   88.989405][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   88.989548][   T68]  netif_close_many (net/core/dev.c:1804)
[   88.989745][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.989919][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.990096][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.990269][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   88.990442][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   88.990646][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   88.990868][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   88.991039][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.991209][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   88.991384][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   88.991589][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.991783][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   88.991956][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   88.992127][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   88.992297][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   88.992470][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   88.992648][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   88.992835][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   88.993010][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   88.993183][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   88.993352][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   88.993528][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   88.993720][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   88.993894][   T68]  process_one_work (kernel/workqueue.c:3314)
[   88.994073][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   88.994244][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   88.994419][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   88.994593][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.994781][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   88.994953][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   88.995123][   T68]  kthread (kernel/kthread.c:436)
[   88.995266][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.995464][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.995636][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   88.995830][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   88.996034][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   88.996206][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   88.996377][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   88.999456][   T68] ------------[ cut here ]------------
| [   88.999586][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   88.999873][   T68] Modules linked in: ipvtap ipvlan
| [   89.000266][   T68] Tainted: [W]=WARN
[   89.000356][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.000508][   T68] Workqueue: netns cleanup_net
[   89.000631][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.000801][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.001233][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   89.001383][   T68] RAX: 00000000ffffffa6 RBX: ff1100001ac663c0 RCX: 1ff4000000092ed5
[   89.001561][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001ac6647c
[   89.001750][   T68] RBP: ff1100000e6f4000 R08: 1fe220000358cc91 R09: ff110000090e2ed0
[   89.001930][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   89.002105][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.002287][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   89.002499][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.002656][   T68] CR2: 00005559e9c93d5c CR3: 0000000009dc3006 CR4: 0000000000771ef0
[   89.002841][   T68] PKRU: 55555554
[   89.002931][   T68] Call Trace:
[   89.003019][   T68]  <TASK>
[   89.003082][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.003235][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.003394][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.003514][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.003634][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.003768][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.003888][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.004010][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.004132][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.004250][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.004372][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.004491][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.004607][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.004742][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.004861][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.004984][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.005108][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.005227][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.005350][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.005469][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.005591][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.005720][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.005837][   T68]  kthread (kernel/kthread.c:436)
[   89.005929][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.006075][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.006194][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.006317][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.006464][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.006582][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.006711][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.041292][   T68] ------------[ cut here ]------------
| [   89.041493][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.041804][   T68] Modules linked in: ipvtap ipvlan
| [   89.042292][   T68] Tainted: [W]=WARN
[   89.042428][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.042622][   T68] Workqueue: netns cleanup_net
[   89.042826][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.043024][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.043532][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.043751][   T68] RAX: 00000000ffffffa6 RBX: ff110000166f7700 RCX: 1ff4000000092eed
[   89.043973][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166f77bc
[   89.044195][   T68] RBP: ff11000013bac000 R08: 1fe2200002cdeef9 R09: ff110000090e2ed0
[   89.044416][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.044635][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.044879][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.045130][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.045325][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.045549][   T68] PKRU: 55555554
[   89.045704][   T68] Call Trace:
[   89.045841][   T68]  <TASK>
[   89.045949][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.046178][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.046372][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.046540][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.046728][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.046892][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.047061][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.047228][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.047397][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.047589][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.047778][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.047946][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.048109][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.048276][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.048445][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.048615][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.048807][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.048971][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.049140][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.049307][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.049474][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.049641][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.049832][   T68]  kthread (kernel/kthread.c:436)
[   89.050004][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.050197][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.050365][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.050532][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.050749][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.050916][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.051082][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.053731][   T68] ------------[ cut here ]------------
| [   89.053893][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.054174][   T68] Modules linked in: ipvtap ipvlan
| [   89.054992][   T68] Tainted: [W]=WARN
[   89.055189][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.055473][   T68] Workqueue: netns cleanup_net
[   89.055701][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.055898][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.056360][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.056556][   T68] RAX: 00000000ffffffa6 RBX: ff11000012aba3c0 RCX: 1ff4000000092eed
[   89.056798][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012aba47c
[   89.057018][   T68] RBP: ff11000013b81000 R08: 1fe2200002557491 R09: ff110000090e2ed0
[   89.057237][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.057456][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.057705][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.057955][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.058150][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.058375][   T68] PKRU: 55555554
[   89.058510][   T68] Call Trace:
[   89.058690][   T68]  <TASK>
[   89.058838][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.059040][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.059236][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.059401][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.059570][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.059755][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.059928][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.060097][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.060264][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.060427][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.060601][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.060790][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.060955][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.061127][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.061292][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.061461][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.061630][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.061817][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.061988][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.062159][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.062324][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.062493][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.062670][   T68]  kthread (kernel/kthread.c:436)
[   89.062816][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.063022][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.063221][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.063386][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.063582][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.063771][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.063937][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.066548][   T68] ------------[ cut here ]------------
| [   89.067128][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.067455][   T68] Modules linked in: ipvtap ipvlan
| [   89.068067][   T68] Tainted: [W]=WARN
[   89.068249][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.068521][   T68] Workqueue: netns cleanup_net
[   89.068758][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.069004][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.069526][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.069786][   T68] RAX: 00000000ffffffa6 RBX: ff11000019c02200 RCX: 1ff4000000092eed
[   89.070052][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000019c022bc
[   89.070316][   T68] RBP: ff11000013b61000 R08: 1fe2200003380459 R09: ff110000090e2ed0
[   89.070579][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.070866][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.071139][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.071436][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.071686][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.071976][   T68] PKRU: 55555554
[   89.072211][   T68] Call Trace:
[   89.072442][   T68]  <TASK>
[   89.072642][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.073058][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.073343][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.073598][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.073864][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.074080][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.074242][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.074409][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.074577][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.074768][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.074936][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.075104][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.075270][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.075438][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.075602][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.075792][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.075967][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.076133][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.076301][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.076468][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.076631][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.076818][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.076987][   T68]  kthread (kernel/kthread.c:436)
[   89.077122][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.077313][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.077479][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.077646][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.077857][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.078025][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.078189][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.080579][   T68] ------------[ cut here ]------------
| [   89.080771][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.081051][   T68] Modules linked in: ipvtap ipvlan
| [   89.081533][   T68] Tainted: [W]=WARN
[   89.081960][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.082201][   T68] Workqueue: netns cleanup_net
[   89.082418][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.082683][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.083229][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.083498][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d56d8c0 RCX: 1ff4000000092eed
[   89.083784][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d56d97c
[   89.084050][   T68] RBP: ff11000013ac9000 R08: 1fe2200001aadb31 R09: ff110000090e2ed0
[   89.084371][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.084636][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.084930][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.085230][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.085468][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.085755][   T68] PKRU: 55555554
[   89.085936][   T68] Call Trace:
[   89.086121][   T68]  <TASK>
[   89.086285][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.086533][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.086796][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.087013][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.087228][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.087437][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.087648][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.087936][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.088131][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.088293][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.088461][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.088626][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.088807][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.088979][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.089144][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.089313][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.089485][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.089666][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.089846][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.090014][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.090179][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.090345][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.090516][   T68]  kthread (kernel/kthread.c:436)
[   89.090666][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.090871][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.091037][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.091205][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.091403][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.091570][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.091763][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.094682][   T68] ------------[ cut here ]------------
| [   89.094853][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.095161][   T68] Modules linked in: ipvtap ipvlan
| [   89.095982][   T68] Tainted: [W]=WARN
[   89.096217][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.096512][   T68] Workqueue: netns cleanup_net
[   89.096804][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.097110][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.097705][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.098000][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d56d540 RCX: 1ff4000000092eed
[   89.098314][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d56d5fc
[   89.098585][   T68] RBP: ff11000012f39000 R08: 1fe2200001aadac1 R09: ff110000090e2ed0
[   89.098879][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.099152][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.099423][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.099739][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.099981][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.100265][   T68] PKRU: 55555554
[   89.100447][   T68] Call Trace:
[   89.100629][   T68]  <TASK>
[   89.100801][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.101048][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.101288][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.101502][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.101740][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.101955][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.102168][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.102383][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.102598][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.102830][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.103047][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.103263][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.103473][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.103713][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.103925][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.104140][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.104358][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.104571][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.104811][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.105023][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.105239][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.105455][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.105684][   T68]  kthread (kernel/kthread.c:436)
[   89.105878][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.106120][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.106334][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.106549][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.106881][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.107131][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.107401][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.128055][   T68] ------------[ cut here ]------------
| [   89.128231][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.128524][   T68] Modules linked in: ipvtap ipvlan
| [   89.129049][   T68] Tainted: [W]=WARN
[   89.129190][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.129390][   T68] Workqueue: netns cleanup_net
[   89.129566][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.130058][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.130597][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   89.130880][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d56d380 RCX: 1ff4000000092eaf
[   89.131160][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d56d43c
[   89.131394][   T68] RBP: ff1100000fe04000 R08: 1fe2200001aada89 R09: ff110000090e2ed0
[   89.131624][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   89.131880][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   89.132120][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.132381][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.132585][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.132838][   T68] PKRU: 55555554
[   89.132978][   T68] Call Trace:
[   89.133117][   T68]  <TASK>
[   89.133227][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   89.133400][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   89.133541][   T68]  netif_close_many (net/core/dev.c:1804)
[   89.133731][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.133901][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.134081][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.134255][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   89.134428][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   89.134631][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   89.134855][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.135028][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.135198][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   89.135370][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.135576][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.135775][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.135953][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.136134][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.136308][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.136486][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.136679][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.136861][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.137041][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.137219][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.137394][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.137567][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.137759][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.137935][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.138112][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.138287][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.138466][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.138639][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.138831][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.139010][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.139186][   T68]  kthread (kernel/kthread.c:436)
[   89.139327][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.139530][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.139723][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.139903][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.140110][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.140287][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.140463][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.143608][   T68] ------------[ cut here ]------------
| [   89.144127][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.144412][   T68] Modules linked in: ipvtap ipvlan
| [   89.144920][   T68] Tainted: [W]=WARN
[   89.145058][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.145253][   T68] Workqueue: netns cleanup_net
[   89.145427][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.145630][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.146127][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   89.146325][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d56de00 RCX: 1ff4000000092ed5
[   89.146550][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d56debc
[   89.146798][   T68] RBP: ff1100000fe04000 R08: 1fe2200001aadbd9 R09: ff110000090e2ed0
[   89.147022][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.147247][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.147473][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.147747][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.147946][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.148174][   T68] PKRU: 55555554
[   89.148311][   T68] Call Trace:
[   89.148453][   T68]  <TASK>
[   89.148567][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.148803][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.149044][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.149222][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.149393][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.149566][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.149758][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.149933][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.150107][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.150276][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.150451][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.150624][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.150810][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.150980][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.151147][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.151316][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.151487][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.151668][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.151847][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.152016][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.152184][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.152354][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.152521][   T68]  kthread (kernel/kthread.c:436)
[   89.152673][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.152877][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.153045][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.153213][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.153409][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.153576][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.153767][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.183072][   T68] ------------[ cut here ]------------
| [   89.183253][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.183531][   T68] Modules linked in: ipvtap ipvlan
| [   89.184088][   T68] Tainted: [W]=WARN
[   89.184228][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.184421][   T68] Workqueue: netns cleanup_net
[   89.184591][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.184811][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.185297][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.185493][   T68] RAX: 00000000ffffffa6 RBX: ff110000155ac580 RCX: 1ff4000000092eed
[   89.185733][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000155ac63c
[   89.185957][   T68] RBP: ff11000013cb1000 R08: 1fe2200002ab58c9 R09: ff110000090e2ed0
[   89.186214][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.186435][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.186718][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.187016][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.187217][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.187455][   T68] PKRU: 55555554
[   89.187589][   T68] Call Trace:
[   89.187742][   T68]  <TASK>
[   89.187852][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.188053][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.188244][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.188410][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.188581][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.188769][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.188941][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.189112][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.189282][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.189452][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.189625][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.189828][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.189994][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.190160][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.190325][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.190490][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.190672][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.190846][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.191017][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.191183][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.191346][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.191513][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.191689][   T68]  kthread (kernel/kthread.c:436)
[   89.191834][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.192029][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.192197][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.192393][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.192586][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.192771][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.192936][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.195567][   T68] ------------[ cut here ]------------
| [   89.196196][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.196525][   T68] Modules linked in: ipvtap ipvlan
| [   89.197128][   T68] Tainted: [W]=WARN
[   89.197262][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.197453][   T68] Workqueue: netns cleanup_net
[   89.197622][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.197839][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.198311][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.198503][   T68] RAX: 00000000ffffffa6 RBX: ff11000015aee580 RCX: 1ff4000000092eed
[   89.198739][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015aee63c
[   89.198960][   T68] RBP: ff11000013c9c000 R08: 1fe2200002b5dcc9 R09: ff110000090e2ed0
[   89.199176][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.199396][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.199617][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.199888][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.200080][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.200298][   T68] PKRU: 55555554
[   89.200430][   T68] Call Trace:
[   89.200561][   T68]  <TASK>
[   89.200680][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.200890][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.201081][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.201246][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.201410][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.201572][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.201756][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.201922][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.202089][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.202256][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.202426][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.202591][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.202776][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.202942][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.203112][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.203312][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.203479][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.203643][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.203834][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.204001][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.204165][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.204336][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.204500][   T68]  kthread (kernel/kthread.c:436)
[   89.204636][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.204847][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.205026][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.205191][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.205383][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.205548][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.205738][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.208348][   T68] ------------[ cut here ]------------
| [   89.208506][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.208876][   T68] Modules linked in: ipvtap ipvlan
| [   89.209532][   T68] Tainted: [W]=WARN
[   89.209730][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.209983][   T68] Workqueue: netns cleanup_net
[   89.210239][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.210513][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.211035][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.211273][   T68] RAX: 00000000ffffffa6 RBX: ff11000015aeec80 RCX: 1ff4000000092eed
[   89.211536][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015aeed3c
[   89.211827][   T68] RBP: ff110000130b4000 R08: 1fe2200002b5dda9 R09: ff110000090e2ed0
[   89.212091][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.212358][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.212713][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.213008][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.213246][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.213515][   T68] PKRU: 55555554
[   89.213713][   T68] Call Trace:
[   89.213891][   T68]  <TASK>
[   89.214042][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.214281][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.214516][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.214746][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.214955][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.215161][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.215371][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.215579][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.215858][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.216018][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.216187][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.216358][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.216525][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.216743][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.216920][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.217083][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.217251][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.217414][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.217580][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.217767][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.217930][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.218093][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.218257][   T68]  kthread (kernel/kthread.c:436)
[   89.218392][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.218585][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.218768][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.218960][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.219152][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.219323][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.219489][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.221876][   T68] ------------[ cut here ]------------
| [   89.222039][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.222311][   T68] Modules linked in: ipvtap ipvlan
| [   89.223273][   T68] Tainted: [W]=WARN
[   89.223506][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.223823][   T68] Workqueue: netns cleanup_net
[   89.224078][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.224342][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.224911][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.225148][   T68] RAX: 00000000ffffffa6 RBX: ff11000015aef000 RCX: 1ff4000000092eed
[   89.225412][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015aef0bc
[   89.225691][   T68] RBP: ff1100001309c000 R08: 1fe2200002b5de19 R09: ff110000090e2ed0
[   89.225964][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.226227][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.226500][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.226820][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.227064][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.227337][   T68] PKRU: 55555554
[   89.227517][   T68] Call Trace:
[   89.227719][   T68]  <TASK>
[   89.227876][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.228124][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.228364][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.228576][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.228809][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.229017][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.229224][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.229434][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.229647][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.229915][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.230128][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.230337][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.230546][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.230776][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.231017][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.231231][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.231536][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.231804][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.232078][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.232244][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.232410][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.232577][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.232780][   T68]  kthread (kernel/kthread.c:436)
[   89.232917][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.233114][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.233280][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.233452][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.233663][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.233840][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.234012][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.236438][   T68] ------------[ cut here ]------------
| [   89.236608][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.236921][   T68] Modules linked in: ipvtap ipvlan
| [   89.237412][   T68] Tainted: [W]=WARN
[   89.237548][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.237875][   T68] Workqueue: netns cleanup_net
[   89.238142][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.238443][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.239026][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.239353][   T68] RAX: 00000000ffffffa6 RBX: ff11000015aef380 RCX: 1ff4000000092eed
[   89.239675][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015aef43c
[   89.239999][   T68] RBP: ff1100000f2d1000 R08: 1fe2200002b5de89 R09: ff110000090e2ed0
[   89.240270][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.240549][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.240847][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.241151][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.241393][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.241673][   T68] PKRU: 55555554
[   89.241858][   T68] Call Trace:
[   89.242064][   T68]  <TASK>
[   89.242216][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.242458][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.242715][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.242957][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.243168][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.243379][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.243593][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.243829][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.244044][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.244258][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.244473][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.244707][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.244919][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.245130][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.245375][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.245590][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.245831][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.246046][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.246264][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.246474][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.246749][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.247028][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.247302][   T68]  kthread (kernel/kthread.c:436)
[   89.247532][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.247861][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.248119][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.248374][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.248598][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.248793][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.248965][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.272386][   T68] ------------[ cut here ]------------
| [   89.272587][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.272912][   T68] Modules linked in: ipvtap ipvlan
| [   89.273423][   T68] Tainted: [W]=WARN
[   89.273567][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.274202][   T68] Workqueue: netns cleanup_net
[   89.274394][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.274634][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.275140][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   89.275342][   T68] RAX: 00000000ffffffa6 RBX: ff11000015aef540 RCX: 1ff4000000092eaf
[   89.275569][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015aef5fc
[   89.275818][   T68] RBP: ff1100001301c000 R08: 1fe2200002b5dec1 R09: ff110000090e2ed0
[   89.276048][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   89.276280][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   89.276511][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.276795][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.276996][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.277227][   T68] PKRU: 55555554
[   89.277365][   T68] Call Trace:
[   89.277505][   T68]  <TASK>
[   89.277615][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   89.277805][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   89.277948][   T68]  netif_close_many (net/core/dev.c:1804)
[   89.278122][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.278292][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.278465][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.278642][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   89.278840][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   89.279075][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   89.279283][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.279458][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.279635][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   89.279829][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.280032][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.280208][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.280386][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.280564][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.280761][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.280937][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.281117][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.281297][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.281478][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.281665][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.281843][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.282021][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.282193][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.282372][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.282551][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.282741][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.282917][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.283090][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.283259][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.283431][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.283605][   T68]  kthread (kernel/kthread.c:436)
[   89.283773][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.283980][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.284155][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.284327][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.284534][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.284729][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.284903][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.287562][   T68] ------------[ cut here ]------------
| [   89.288309][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.288667][   T68] Modules linked in: ipvtap ipvlan
| [   89.289289][   T68] Tainted: [W]=WARN
[   89.289456][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.289688][   T68] Workqueue: netns cleanup_net
[   89.289901][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.290112][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.290574][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   89.290792][   T68] RAX: 00000000ffffffa6 RBX: ff11000015589700 RCX: 1ff4000000092ed5
[   89.291014][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000155897bc
[   89.291234][   T68] RBP: ff1100001301c000 R08: 1fe2200002ab12f9 R09: ff110000090e2ed0
[   89.291457][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.291701][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.291953][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.292211][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.292406][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.292629][   T68] PKRU: 55555554
[   89.292799][   T68] Call Trace:
[   89.292936][   T68]  <TASK>
[   89.293046][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.293246][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.293443][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.293624][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.293812][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.293984][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.294149][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.294319][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.294488][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.294670][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.294863][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.295041][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.295205][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.295373][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.295538][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.295727][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.295898][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.296063][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.296232][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.296399][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.296569][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.296775][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.296961][   T68]  kthread (kernel/kthread.c:436)
[   89.297102][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.297295][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.297461][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.297626][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.297871][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.298036][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.298203][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.333340][   T68] ------------[ cut here ]------------
| [   89.333526][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.333831][   T68] Modules linked in: ipvtap ipvlan
| [   89.334309][   T68] Tainted: [W]=WARN
[   89.334442][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.334634][   T68] Workqueue: netns cleanup_net
[   89.334824][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.335024][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.335480][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.335685][   T68] RAX: 00000000ffffffa6 RBX: ff11000016d93e00 RCX: 1ff4000000092eed
[   89.335913][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016d93ebc
[   89.336132][   T68] RBP: ff11000013c31000 R08: 1fe2200002db27d9 R09: ff110000090e2ed0
[   89.336351][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.336568][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.336807][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.337056][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.337247][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.337468][   T68] PKRU: 55555554
[   89.337602][   T68] Call Trace:
[   89.337756][   T68]  <TASK>
[   89.337865][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.338065][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.338257][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.338421][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.338587][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.338770][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.338936][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.339104][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.339272][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.339436][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.339602][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.339788][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.339954][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.340120][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.340283][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.340449][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.340616][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.340797][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.340967][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.341135][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.341299][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.341467][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.341631][   T68]  kthread (kernel/kthread.c:436)
[   89.341788][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.341983][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.342147][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.342313][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.342506][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.342682][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.342856][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.345410][   T68] ------------[ cut here ]------------
| [   89.345568][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.345860][   T68] Modules linked in: ipvtap ipvlan
| [   89.346332][   T68] Tainted: [W]=WARN
[   89.346468][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.346672][   T68] Workqueue: netns cleanup_net
[   89.346854][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.347051][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.347505][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.347719][   T68] RAX: 00000000ffffffa6 RBX: ff11000016d92740 RCX: 1ff4000000092eed
[   89.347938][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016d927fc
[   89.348156][   T68] RBP: ff11000013c1c000 R08: 1fe2200002db2501 R09: ff110000090e2ed0
[   89.348377][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.348594][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.348840][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.349105][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.349300][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.349519][   T68] PKRU: 55555554
[   89.349666][   T68] Call Trace:
[   89.349804][   T68]  <TASK>
[   89.349943][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.350141][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.350335][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.350504][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.350684][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.350858][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.351025][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.351192][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.351359][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.351524][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.351716][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.351885][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.352049][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.352215][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.352380][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.352548][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.352738][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.352912][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.353157][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.353329][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.353494][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.353672][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.353918][   T68]  kthread (kernel/kthread.c:436)
[   89.354054][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.354257][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.354423][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.354589][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.354800][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.354966][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.355132][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.358367][   T68] ------------[ cut here ]------------
| [   89.358601][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.359271][   T68] Modules linked in: ipvtap ipvlan
| [   89.359778][   T68] Tainted: [W]=WARN
[   89.359911][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.360101][   T68] Workqueue: netns cleanup_net
[   89.360268][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.360468][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.360942][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.361135][   T68] RAX: 00000000ffffffa6 RBX: ff110000146d2740 RCX: 1ff4000000092eed
[   89.361356][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000146d27fc
[   89.361573][   T68] RBP: ff11000002429000 R08: 1fe22000028da501 R09: ff110000090e2ed0
[   89.361818][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.362036][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.362261][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.362583][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.362799][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.363094][   T68] PKRU: 55555554
[   89.363226][   T68] Call Trace:
[   89.363359][   T68]  <TASK>
[   89.363467][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.363680][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.363950][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.364114][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.364280][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.364445][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.364703][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.364873][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.365044][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.365206][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.365445][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.365611][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.365794][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.365961][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.366197][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.366363][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.366535][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.366791][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.366961][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.367130][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.367293][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.367459][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.367712][   T68]  kthread (kernel/kthread.c:436)
[   89.367850][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.368047][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.368214][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.368449][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.368640][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.368826][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.369063][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.371573][   T68] ------------[ cut here ]------------
| [   89.371760][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.372033][   T68] Modules linked in: ipvtap ipvlan
| [   89.372511][   T68] Tainted: [W]=WARN
[   89.373211][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.373449][   T68] Workqueue: netns cleanup_net
[   89.373678][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.373940][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.374445][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.374705][   T68] RAX: 00000000ffffffa6 RBX: ff110000146d38c0 RCX: 1ff4000000092eed
[   89.374985][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000146d397c
[   89.375250][   T68] RBP: ff1100000fd01000 R08: 1fe22000028da731 R09: ff110000090e2ed0
[   89.375516][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.375797][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.376065][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.376368][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.376606][   T68] CR2: 00007f8c19b8d580 CR3: 000000004814d003 CR4: 0000000000771ef0
[   89.376894][   T68] PKRU: 55555554
[   89.377075][   T68] Call Trace:
[   89.377253][   T68]  <TASK>
[   89.377408][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.377675][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.377928][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.378155][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.378420][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.378706][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.378967][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.379222][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.379481][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.379757][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.380016][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.380266][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.380491][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.380764][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.380983][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.381195][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.381412][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.381620][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.381856][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.382072][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.382283][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.382495][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.382727][   T68]  kthread (kernel/kthread.c:436)
[   89.382910][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.383147][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.383356][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.383567][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.383824][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.384058][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.384269][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.387464][   T68] ------------[ cut here ]------------
| [   89.387611][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   89.388335][   T68] Modules linked in: ipvtap ipvlan
| [   89.388729][   T68] Tainted: [W]=WARN
[   89.388819][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.388969][   T68] Workqueue: netns cleanup_net
[   89.389096][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.389252][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.389686][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.389844][   T68] RAX: 00000000ffffffa6 RBX: ff110000146d2e40 RCX: 1ff4000000092eed
[   89.390024][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000146d2efc
[   89.390201][   T68] RBP: ff1100000e8d4000 R08: 1fe22000028da5e1 R09: ff110000090e2ed0
[   89.390378][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   89.390556][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.390749][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   89.390958][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.391107][   T68] CR2: 00007ffe374dbfe0 CR3: 0000000009dc3003 CR4: 0000000000771ef0
[   89.391287][   T68] PKRU: 55555554
[   89.391378][   T68] Call Trace:
[   89.391471][   T68]  <TASK>
[   89.391535][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.391700][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.391850][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.391972][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.392093][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.392212][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.392329][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.392451][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.392574][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.392698][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.392825][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.392947][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.393066][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.393192][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.393314][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.393436][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.393560][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.393688][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.393821][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.393943][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.394074][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.394209][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.394331][   T68]  kthread (kernel/kthread.c:436)
[   89.394425][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.394574][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.394704][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.394829][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.394979][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.395098][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.395220][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.419026][   T68] ------------[ cut here ]------------
| [   89.419164][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   89.419408][   T68] Modules linked in: ipvtap ipvlan
| [   89.419834][   T68] Tainted: [W]=WARN
[   89.419930][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.420082][   T68] Workqueue: netns cleanup_net
[   89.420211][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.420371][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.420825][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   89.420986][   T68] RAX: 00000000ffffffa6 RBX: ff110000146d2580 RCX: 1ff4000000092eaf
[   89.421173][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000146d263c
[   89.421362][   T68] RBP: ff1100000f7e9000 R08: 1fe22000028da4c9 R09: ff110000090e2ed0
[   89.421548][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   89.421745][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   89.421931][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   89.422147][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.422303][   T68] CR2: 00007ffe374dbfe0 CR3: 0000000009dc3003 CR4: 0000000000771ef0
[   89.422493][   T68] PKRU: 55555554
[   89.422584][   T68] Call Trace:
[   89.422681][   T68]  <TASK>
[   89.422749][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   89.422875][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   89.422970][   T68]  netif_close_many (net/core/dev.c:1804)
[   89.423092][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.423221][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.423348][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.423477][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   89.423600][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   89.423765][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   89.423918][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.424044][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.424166][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   89.424291][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.424453][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.424579][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.424715][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.424841][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.424963][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.425090][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.425216][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.425339][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.425466][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.425591][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.425729][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.425853][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.425977][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.426103][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.426236][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.426359][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.426486][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.426612][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.426746][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.426871][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.426994][   T68]  kthread (kernel/kthread.c:436)
[   89.427088][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.427241][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.427366][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.427494][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.427649][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.427786][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.427915][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.430190][   T68] ------------[ cut here ]------------
| [   89.430310][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   89.430546][   T68] Modules linked in: ipvtap ipvlan
| [   89.430946][   T68] Tainted: [W]=WARN
[   89.431036][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.431184][   T68] Workqueue: netns cleanup_net
[   89.431311][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.431464][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.431897][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   89.432046][   T68] RAX: 00000000ffffffa6 RBX: ff11000009906740 RCX: 1ff4000000092ed5
[   89.432232][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000099067fc
[   89.432410][   T68] RBP: ff1100000f7e9000 R08: 1fe2200001320d01 R09: ff110000090e2ed0
[   89.432587][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   89.432779][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.432964][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   89.433177][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.433325][   T68] CR2: 00007ffe374dbfe0 CR3: 0000000009dc3003 CR4: 0000000000771ef0
[   89.433504][   T68] PKRU: 55555554
[   89.433595][   T68] Call Trace:
[   89.433755][   T68]  <TASK>
[   89.433819][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.434034][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.434185][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.434306][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.434427][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.434547][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.434723][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.434852][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.434975][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.435093][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.435221][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.435341][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.435459][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.435622][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.435795][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.435920][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.436044][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.436163][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.436288][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.436411][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.436529][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.436649][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.436781][   T68]  kthread (kernel/kthread.c:436)
[   89.436870][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.437017][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.437135][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.437254][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.437402][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.437526][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.437645][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.466667][   T68] ------------[ cut here ]------------
| [   89.466822][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   89.467069][   T68] Modules linked in: ipvtap ipvlan
| [   89.467495][   T68] Tainted: [W]=WARN
[   89.467592][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.467768][   T68] Workqueue: netns cleanup_net
[   89.467901][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.468069][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.468500][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.468649][   T68] RAX: 00000000ffffffa6 RBX: ff11000017808900 RCX: 1ff4000000092eed
[   89.468843][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000178089bc
[   89.469018][   T68] RBP: ff1100000f891000 R08: 1fe2200002f01139 R09: ff110000090e2ed0
[   89.469194][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   89.469379][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.469554][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   89.469770][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.469915][   T68] CR2: 00007ffe374dbfe0 CR3: 000000004814d006 CR4: 0000000000771ef0
[   89.470089][   T68] PKRU: 55555554
[   89.470175][   T68] Call Trace:
[   89.470266][   T68]  <TASK>
[   89.470326][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.470474][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.470617][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.470744][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.470862][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.470977][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.471095][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.471215][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.471340][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.471456][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.471576][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.471706][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.471821][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.471937][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.472053][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.472172][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.472292][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.472411][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.472532][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.472649][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.472779][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.472897][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.473014][   T68]  kthread (kernel/kthread.c:436)
[   89.473102][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.473245][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.473363][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.473480][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.473626][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.473784][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.473903][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.476052][   T68] ------------[ cut here ]------------
| [   89.476175][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   89.476401][   T68] Modules linked in: ipvtap ipvlan
| [   89.476793][   T68] Tainted: [W]=WARN
[   89.476882][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.477028][   T68] Workqueue: netns cleanup_net
[   89.477149][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.477301][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.478188][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.478340][   T68] RAX: 00000000ffffffa6 RBX: ff11000017808200 RCX: 1ff4000000092eed
[   89.478525][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000178082bc
[   89.478713][   T68] RBP: ff11000013fec000 R08: 1fe2200002f01059 R09: ff110000090e2ed0
[   89.478888][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   89.479065][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.479238][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   89.479442][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.479588][   T68] CR2: 00007ffe374dbfe0 CR3: 000000004814d006 CR4: 0000000000771ef0
[   89.479773][   T68] PKRU: 55555554
[   89.479860][   T68] Call Trace:
[   89.479947][   T68]  <TASK>
[   89.480007][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.480160][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.480303][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.480420][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.480537][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.480658][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.480782][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.480901][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.481019][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.481134][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.481254][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.481371][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.481484][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.481603][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.481728][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.481844][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.481963][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.482080][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.482201][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.482317][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.482433][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.482550][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.482669][   T68]  kthread (kernel/kthread.c:436)
[   89.482762][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.482908][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.483027][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.483142][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.483285][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.483404][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.483522][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.485647][   T68] ------------[ cut here ]------------
| [   89.485781][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   89.486007][   T68] Modules linked in: ipvtap ipvlan
| [   89.486396][   T68] Tainted: [W]=WARN
[   89.486483][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.486627][   T68] Workqueue: netns cleanup_net
[   89.487194][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.487344][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.487806][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.487951][   T68] RAX: 00000000ffffffa6 RBX: ff11000018287700 RCX: 1ff4000000092eed
[   89.488123][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000182877bc
[   89.488293][   T68] RBP: ff11000013fc1000 R08: 1fe2200003050ef9 R09: ff110000090e2ed0
[   89.488464][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   89.488638][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.488866][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   89.489073][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.489226][   T68] CR2: 00007ffe374dbfe0 CR3: 000000004814d006 CR4: 0000000000771ef0
[   89.489455][   T68] PKRU: 55555554
[   89.489541][   T68] Call Trace:
[   89.489626][   T68]  <TASK>
[   89.489736][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.489883][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.490025][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.490140][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.490255][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.490368][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.490485][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.490605][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.490774][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.490889][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.491006][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.491125][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.491239][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.491355][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.491472][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.491589][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.491759][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.491875][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.491995][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.492110][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.492225][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.492341][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.492460][   T68]  kthread (kernel/kthread.c:436)
[   89.492548][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.492741][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.492857][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.492972][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.493115][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.493230][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.493346][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.497059][   T68] ------------[ cut here ]------------
| [   89.497179][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   89.497406][   T68] Modules linked in: ipvtap ipvlan
| [   89.497799][   T68] Tainted: [W]=WARN
[   89.497885][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.498031][   T68] Workqueue: netns cleanup_net
[   89.498151][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.498300][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.499165][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.499314][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d757c40 RCX: 1ff4000000092eed
[   89.499485][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d757cfc
[   89.499716][   T68] RBP: ff11000013fa1000 R08: 1fe2200001aeafa1 R09: ff110000090e2ed0
[   89.499886][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   89.500057][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.500233][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   89.500434][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.500579][   T68] CR2: 00007ffe374dbfe0 CR3: 000000004814d006 CR4: 0000000000771ef0
[   89.500802][   T68] PKRU: 55555554
[   89.500932][   T68] Call Trace:
[   89.501020][   T68]  <TASK>
[   89.501084][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.501230][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.501372][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.501489][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.501604][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.501768][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.501884][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.502003][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.502122][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.502236][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.502354][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.502469][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.502583][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.502753][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.502870][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.502986][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.503104][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.503219][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.503344][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.503460][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.503575][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.503741][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.503858][   T68]  kthread (kernel/kthread.c:436)
[   89.503945][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.504088][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.504204][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.504319][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.504464][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.504578][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.504749][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.506932][   T68] ------------[ cut here ]------------
| [   89.507061][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   89.507289][   T68] Modules linked in: ipvtap ipvlan
| [   89.507667][   T68] Tainted: [W]=WARN
[   89.507759][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.507905][   T68] Workqueue: netns cleanup_net
[   89.508028][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.508186][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.508603][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.508763][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d7578c0 RCX: 1ff4000000092eed
[   89.508943][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d75797c
[   89.509116][   T68] RBP: ff11000013f89000 R08: 1fe2200001aeaf31 R09: ff110000090e2ed0
[   89.509289][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   89.509465][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.509656][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   89.509872][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.510020][   T68] CR2: 00007ffe374dbfe0 CR3: 000000004814d006 CR4: 0000000000771ef0
[   89.510202][   T68] PKRU: 55555554
[   89.510289][   T68] Call Trace:
[   89.510376][   T68]  <TASK>
[   89.510436][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.510581][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.510782][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.510944][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.511060][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.511174][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.511289][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.511407][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.511523][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.511637][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.511810][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.511926][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.512040][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.512155][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.512270][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.512388][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.512508][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.512622][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.512795][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.512913][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.513028][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.513149][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.513265][   T68]  kthread (kernel/kthread.c:436)
[   89.513356][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.513499][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.513614][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.513784][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.513927][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.514043][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.514174][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.529967][   T68] ------------[ cut here ]------------
| [   89.530116][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   89.530370][   T68] Modules linked in: ipvtap ipvlan
| [   89.530808][   T68] Tainted: [W]=WARN
[   89.530904][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.531062][   T68] Workqueue: netns cleanup_net
[   89.531193][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.531367][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.531826][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   89.531984][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d757700 RCX: 1ff4000000092eaf
[   89.532163][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7577bc
[   89.532350][   T68] RBP: ff11000013499000 R08: 1fe2200001aeaef9 R09: ff110000090e2ed0
[   89.532542][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   89.532734][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   89.532918][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   89.533132][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.533286][   T68] CR2: 00005559e9c93d5c CR3: 0000000009dc3003 CR4: 0000000000771ef0
[   89.533472][   T68] PKRU: 55555554
[   89.533568][   T68] Call Trace:
[   89.533664][   T68]  <TASK>
[   89.533735][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   89.533859][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   89.533953][   T68]  netif_close_many (net/core/dev.c:1804)
[   89.534078][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.534201][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.534324][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.534454][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   89.534580][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   89.534749][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   89.534902][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.535026][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.535148][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   89.535270][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.535428][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.535558][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.535688][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.535819][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.535943][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.536066][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.536190][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.536311][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.536440][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.536563][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.536689][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.536816][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.536936][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.537058][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.537185][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.537307][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.537435][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.537559][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.537685][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.537813][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.537936][   T68]  kthread (kernel/kthread.c:436)
[   89.538028][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.538179][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.538303][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.538426][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.538578][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.538713][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.538837][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.541766][   T68] ------------[ cut here ]------------
| [   89.541892][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   89.542125][   T68] Modules linked in: ipvtap ipvlan
| [   89.542516][   T68] Tainted: [W]=WARN
[   89.542605][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.542763][   T68] Workqueue: netns cleanup_net
[   89.542934][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.543104][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.543531][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   89.543689][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d756740 RCX: 1ff4000000092ed5
[   89.543872][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7567fc
[   89.544044][   T68] RBP: ff11000013499000 R08: 1fe2200001aead01 R09: ff110000090e2ed0
[   89.544217][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   89.544388][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.544562][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   89.544774][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.544920][   T68] CR2: 00005559e9c93d5c CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.545094][   T68] PKRU: 55555554
[   89.545181][   T68] Call Trace:
[   89.545266][   T68]  <TASK>
[   89.545329][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.545481][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.545629][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.545762][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.545881][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.545998][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.546115][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.546238][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.546356][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.546474][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.546595][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.546725][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.546841][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.546958][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.547073][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.547191][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.547312][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.547430][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.547552][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.547677][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.547798][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.547914][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.548030][   T68]  kthread (kernel/kthread.c:436)
[   89.548117][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.548262][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.548382][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.548499][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.548645][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.548771][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.548887][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.588110][   T68] ------------[ cut here ]------------
| [   89.588277][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   89.588512][   T68] Modules linked in: ipvtap ipvlan
| [   89.588918][   T68] Tainted: [W]=WARN
[   89.589005][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.589154][   T68] Workqueue: netns cleanup_net
[   89.589278][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.589432][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.589916][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.590108][   T68] RAX: 00000000ffffffa6 RBX: ff11000015ebe580 RCX: 1ff4000000092eed
[   89.590285][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015ebe63c
[   89.590459][   T68] RBP: ff110000141ac000 R08: 1fe2200002bd7cc9 R09: ff110000090e2ed0
[   89.590634][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   89.590868][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.591273][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   89.591477][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.591630][   T68] CR2: 00005559e9c93d5c CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.591857][   T68] PKRU: 55555554
[   89.591945][   T68] Call Trace:
[   89.592076][   T68]  <TASK>
[   89.592138][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.592288][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.592434][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.592554][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.592728][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.592843][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.592960][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.593077][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.593194][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.593308][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.593427][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.593546][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.593715][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.593838][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.593959][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.594078][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.594321][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.594453][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.594572][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.594762][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.594882][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.595004][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.595118][   T68]  kthread (kernel/kthread.c:436)
[   89.595208][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.595350][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.595465][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.595579][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.595779][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.595893][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.596020][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.598385][   T68] ------------[ cut here ]------------
| [   89.598558][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.598873][   T68] Modules linked in: ipvtap ipvlan
| [   89.599347][   T68] Tainted: [W]=WARN
[   89.599480][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.599693][   T68] Workqueue: netns cleanup_net
[   89.599873][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.600069][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.600535][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.600769][   T68] RAX: 00000000ffffffa6 RBX: ff11000015ebf540 RCX: 1ff4000000092eed
[   89.600991][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015ebf5fc
[   89.601207][   T68] RBP: ff1100000f294000 R08: 1fe2200002bd7ec1 R09: ff110000090e2ed0
[   89.601451][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.601686][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.601922][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.602171][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.602388][   T68] CR2: 00005559f71fda78 CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.602609][   T68] PKRU: 55555554
[   89.602762][   T68] Call Trace:
[   89.602900][   T68]  <TASK>
[   89.603013][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.603215][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.603441][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.603607][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.603795][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.603978][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.604146][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.604314][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.604484][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.604898][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.605081][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.605253][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.605425][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.605618][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.605810][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.605985][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.606162][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.606358][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.606535][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.606723][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.606912][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.607081][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.607249][   T68]  kthread (kernel/kthread.c:436)
[   89.607412][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.607629][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.607823][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.607994][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.608190][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.608356][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.608524][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.611304][   T68] ------------[ cut here ]------------
| [   89.611468][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.611791][   T68] Modules linked in: ipvtap ipvlan
| [   89.612271][   T68] Tainted: [W]=WARN
[   89.612409][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.612609][   T68] Workqueue: netns cleanup_net
[   89.612809][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.613039][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.613531][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.613747][   T68] RAX: 00000000ffffffa6 RBX: ff11000015ebee40 RCX: 1ff4000000092eed
[   89.613974][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000015ebeefc
[   89.614190][   T68] RBP: ff1100000a3b4000 R08: 1fe2200002bd7de1 R09: ff110000090e2ed0
[   89.614409][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.614628][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.614897][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.615144][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.615335][   T68] CR2: 00005559f71fda78 CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.615588][   T68] PKRU: 55555554
[   89.615858][   T68] Call Trace:
[   89.616116][   T68]  <TASK>
[   89.616331][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.616626][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.616934][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.617199][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.617460][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.617747][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.617972][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.618245][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.618460][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.618686][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.618911][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.619123][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.619350][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.619564][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.619797][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.620008][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.620225][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.620437][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.620716][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.620940][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.621158][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.621370][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.621577][   T68]  kthread (kernel/kthread.c:436)
[   89.621779][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.622016][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.622226][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.622434][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.622688][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.622907][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.623116][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.626151][   T68] ------------[ cut here ]------------
| [   89.626308][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.626585][   T68] Modules linked in: ipvtap ipvlan
| [   89.627105][   T68] Tainted: [W]=WARN
[   89.627931][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.628128][   T68] Workqueue: netns cleanup_net
[   89.628302][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.628505][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.628996][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.629198][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d7bb380 RCX: 1ff4000000092eed
[   89.629418][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7bb43c
[   89.629635][   T68] RBP: ff110000132d1000 R08: 1fe2200001af7689 R09: ff110000090e2ed0
[   89.629878][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.630096][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.630319][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.630566][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.630781][   T68] CR2: 00005559f71fda78 CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.631001][   T68] PKRU: 55555554
[   89.631135][   T68] Call Trace:
[   89.631269][   T68]  <TASK>
[   89.631376][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.631574][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.631790][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.631955][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.632122][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.632286][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.632453][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.632620][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.632809][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.633002][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.633175][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.633357][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.633523][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.633711][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.633883][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.634053][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.634236][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.634404][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.634604][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.634791][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.634972][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.635160][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.635362][   T68]  kthread (kernel/kthread.c:436)
[   89.635500][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.635709][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.635879][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.636051][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.636257][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.636425][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.636591][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.639162][   T68] ------------[ cut here ]------------
| [   89.639333][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.640342][   T68] Modules linked in: ipvtap ipvlan
| [   89.640941][   T68] Tainted: [W]=WARN
[   89.641122][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.641365][   T68] Workqueue: netns cleanup_net
[   89.641580][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.641859][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.642383][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.642628][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d7bb700 RCX: 1ff4000000092eed
[   89.642917][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7bb7bc
[   89.643192][   T68] RBP: ff11000014121000 R08: 1fe2200001af76f9 R09: ff110000090e2ed0
[   89.643464][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.643756][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.644025][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.644362][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.644633][   T68] CR2: 00005559f71fda78 CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.644918][   T68] PKRU: 55555554
[   89.645097][   T68] Call Trace:
[   89.645276][   T68]  <TASK>
[   89.645429][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.645690][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.645939][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.646148][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.646358][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.646566][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.646798][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.647037][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.647252][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.647459][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.647684][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.647903][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.648108][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.648318][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.648527][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.648758][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.648977][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.649147][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.649315][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.649482][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.649645][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.649868][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.650042][   T68]  kthread (kernel/kthread.c:436)
[   89.650182][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.650384][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.650554][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.650743][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.650943][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.651145][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.651316][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.672959][   T68] ------------[ cut here ]------------
| [   89.673144][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.673441][   T68] Modules linked in: ipvtap ipvlan
| [   89.673967][   T68] Tainted: [W]=WARN
[   89.674145][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.674354][   T68] Workqueue: netns cleanup_net
[   89.674536][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.674765][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.675254][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   89.675457][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d7bb8c0 RCX: 1ff4000000092eaf
[   89.675705][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d7bb97c
[   89.675933][   T68] RBP: ff110000140ec000 R08: 1fe2200001af7731 R09: ff110000090e2ed0
[   89.676158][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   89.676385][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   89.676620][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.676900][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.677102][   T68] CR2: 00005559f71fda78 CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.677337][   T68] PKRU: 55555554
[   89.677479][   T68] Call Trace:
[   89.677615][   T68]  <TASK>
[   89.677745][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   89.677918][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   89.678063][   T68]  netif_close_many (net/core/dev.c:1804)
[   89.678235][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.678403][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.678573][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.678764][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   89.678938][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   89.679140][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   89.679341][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.679510][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.679692][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   89.679868][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.680072][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.680246][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.680446][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.680616][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.680846][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.681034][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.681216][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.681387][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.681563][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.681753][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.681928][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.682098][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.682267][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.682437][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.682610][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.682804][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.682979][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.683150][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.683318][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.683489][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.683671][   T68]  kthread (kernel/kthread.c:436)
[   89.683818][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.684014][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.684189][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.684359][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.684558][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.684751][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.684921][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.688073][   T68] ------------[ cut here ]------------
| [   89.688252][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.688528][   T68] Modules linked in: ipvtap ipvlan
| [   89.689050][   T68] Tainted: [W]=WARN
[   89.689185][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.689385][   T68] Workqueue: netns cleanup_net
[   89.689557][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.689782][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.690248][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   89.690442][   T68] RAX: 00000000ffffffa6 RBX: ff1100001553ac80 RCX: 1ff4000000092ed5
[   89.690676][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001553ad3c
[   89.690940][   T68] RBP: ff110000140ec000 R08: 1fe2200002aa75a9 R09: ff110000090e2ed0
[   89.691195][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.691418][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.691640][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.691918][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.692113][   T68] CR2: 00005559f71fda78 CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.692337][   T68] PKRU: 55555554
[   89.692474][   T68] Call Trace:
[   89.692609][   T68]  <TASK>
[   89.692738][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.692942][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.693148][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.693320][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.693488][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.693668][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.693840][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.694015][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.694187][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.694357][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.694527][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.694712][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.694878][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.695050][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.695250][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.695419][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.695591][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.695777][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.695948][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.696118][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.696288][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.696455][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.696620][   T68]  kthread (kernel/kthread.c:436)
[   89.696802][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.697012][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.697464][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.697635][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.697860][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.698031][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.698397][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.733571][   T68] ------------[ cut here ]------------
| [   89.733781][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.734068][   T68] Modules linked in: ipvtap ipvlan
| [   89.734559][   T68] Tainted: [W]=WARN
[   89.734720][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.734916][   T68] Workqueue: netns cleanup_net
[   89.735093][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.735324][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.735886][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.736096][   T68] RAX: 00000000ffffffa6 RBX: ff11000018286e40 RCX: 1ff4000000092eed
[   89.736322][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000018286efc
[   89.736550][   T68] RBP: ff110000141d1000 R08: 1fe2200003050de1 R09: ff110000090e2ed0
[   89.736801][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.737028][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.737254][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.737520][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.737739][   T68] CR2: 00005559f71fda78 CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.737970][   T68] PKRU: 55555554
[   89.738105][   T68] Call Trace:
[   89.738242][   T68]  <TASK>
[   89.738369][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.738568][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.738780][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.738974][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.739157][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.739329][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.739510][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.739688][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.739864][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.740035][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.740208][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.740377][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.740546][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.740731][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.740896][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.741062][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.741232][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.741396][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.741566][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.741754][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.741920][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.742089][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.742254][   T68]  kthread (kernel/kthread.c:436)
[   89.742391][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.742584][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.742767][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.742936][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.743161][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.743325][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.743494][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.746173][   T68] ------------[ cut here ]------------
| [   89.746368][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.746646][   T68] Modules linked in: ipvtap ipvlan
| [   89.747593][   T68] Tainted: [W]=WARN
[   89.747780][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.747976][   T68] Workqueue: netns cleanup_net
[   89.748149][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.748349][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.748840][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.749036][   T68] RAX: 00000000ffffffa6 RBX: ff110000178098c0 RCX: 1ff4000000092eed
[   89.749260][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001780997c
[   89.749481][   T68] RBP: ff11000014354000 R08: 1fe2200002f01331 R09: ff110000090e2ed0
[   89.749721][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.749943][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.750168][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.750417][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.750607][   T68] CR2: 00005559f71fda78 CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.750851][   T68] PKRU: 55555554
[   89.750985][   T68] Call Trace:
[   89.751120][   T68]  <TASK>
[   89.751228][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.751426][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.751623][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.751809][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.751981][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.752152][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.752327][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.752495][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.752702][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.752865][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.753031][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.753197][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.753361][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.753533][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.753715][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.753883][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.754050][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.754213][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.754380][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.754547][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.754736][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.754906][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.755070][   T68]  kthread (kernel/kthread.c:436)
[   89.755207][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.755397][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.755561][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.755748][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.755947][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.756112][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.756304][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.759094][   T68] ------------[ cut here ]------------
| [   89.759267][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.759566][   T68] Modules linked in: ipvtap ipvlan
| [   89.760559][   T68] Tainted: [W]=WARN
[   89.760761][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.761012][   T68] Workqueue: netns cleanup_net
[   89.761229][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.761475][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.762008][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.762253][   T68] RAX: 00000000ffffffa6 RBX: ff110000178091c0 RCX: 1ff4000000092eed
[   89.762529][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001780927c
[   89.762814][   T68] RBP: ff11000014331000 R08: 1fe2200002f01251 R09: ff110000090e2ed0
[   89.763084][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.763455][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.763831][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.764135][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.764371][   T68] CR2: 00005559f71fda78 CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.764645][   T68] PKRU: 55555554
[   89.764895][   T68] Call Trace:
[   89.765106][   T68]  <TASK>
[   89.765308][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.765611][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.765921][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.766178][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.766435][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.766646][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.766830][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.766997][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.767163][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.767325][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.767494][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.767673][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.767843][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.768012][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.768175][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.768340][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.768508][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.768686][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.768863][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.769030][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.769339][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.769505][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.769681][   T68]  kthread (kernel/kthread.c:436)
[   89.769825][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.770018][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.770183][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.770348][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.770542][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.770870][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.771034][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.774081][   T68] ------------[ cut here ]------------
| [   89.774253][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.774602][   T68] Modules linked in: ipvtap ipvlan
| [   89.775475][   T68] Tainted: [W]=WARN
[   89.775675][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.775959][   T68] Workqueue: netns cleanup_net
[   89.776180][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.776429][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.776959][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.777200][   T68] RAX: 00000000ffffffa6 RBX: ff1100000fd30c80 RCX: 1ff4000000092eed
[   89.777465][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fd30d3c
[   89.777758][   T68] RBP: ff11000014311000 R08: 1fe2200001fa61a9 R09: ff110000090e2ed0
[   89.778025][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.778288][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.778581][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.778896][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.779136][   T68] CR2: 00005559f71fda78 CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.779414][   T68] PKRU: 55555554
[   89.779592][   T68] Call Trace:
[   89.779789][   T68]  <TASK>
[   89.779942][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.780183][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.780417][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.780626][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.780858][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.781082][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.781295][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.781506][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.781744][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.781954][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.782165][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.782375][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.782582][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.782857][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.783145][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.783419][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.783690][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.783950][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.784214][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.784474][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.784749][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.784913][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.785078][   T68]  kthread (kernel/kthread.c:436)
[   89.785213][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.785437][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.785612][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.785798][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.785991][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.786162][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.786328][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.788867][   T68] ------------[ cut here ]------------
| [   89.789043][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.789313][   T68] Modules linked in: ipvtap ipvlan
| [   89.790207][   T68] Tainted: [W]=WARN
[   89.790392][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.790628][   T68] Workqueue: netns cleanup_net
[   89.790884][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.791127][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.791631][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.791888][   T68] RAX: 00000000ffffffa6 RBX: ff1100000fd31c40 RCX: 1ff4000000092eed
[   89.792162][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fd31cfc
[   89.792429][   T68] RBP: ff110000137ec000 R08: 1fe2200001fa63a1 R09: ff110000090e2ed0
[   89.792716][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.792984][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.793252][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.793550][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.793814][   T68] CR2: 00005559f71fda78 CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.794085][   T68] PKRU: 55555554
[   89.794264][   T68] Call Trace:
[   89.794444][   T68]  <TASK>
[   89.794598][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.794858][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.795095][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.795306][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.795519][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.795749][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.795960][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.796170][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.796384][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.796594][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.796829][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.797037][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.797243][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.797453][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.797718][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.797976][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.798246][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.798504][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.798783][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.799043][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.799263][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.799428][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.799594][   T68]  kthread (kernel/kthread.c:436)
[   89.799751][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.799945][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.800111][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.800277][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.800469][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.800634][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.800821][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.815841][   T68] ------------[ cut here ]------------
| [   89.816055][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.816345][   T68] Modules linked in: ipvtap ipvlan
| [   89.817318][   T68] Tainted: [W]=WARN
[   89.817458][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.817671][   T68] Workqueue: netns cleanup_net
[   89.817860][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.818066][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.818549][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   89.818770][   T68] RAX: 00000000ffffffa6 RBX: ff1100000fd30040 RCX: 1ff4000000092eaf
[   89.818998][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fd300fc
[   89.819228][   T68] RBP: ff110000137c9000 R08: 1fe2200001fa6021 R09: ff110000090e2ed0
[   89.819486][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   89.819735][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   89.819968][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.820231][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.820432][   T68] CR2: 00005559f71fda78 CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.820689][   T68] PKRU: 55555554
[   89.820835][   T68] Call Trace:
[   89.820972][   T68]  <TASK>
[   89.821083][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   89.821255][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   89.821396][   T68]  netif_close_many (net/core/dev.c:1804)
[   89.821570][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.821777][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.821948][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.822120][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   89.822292][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   89.822497][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   89.822725][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.822898][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.823067][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   89.823236][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.823438][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.823611][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.823804][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.824011][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.824183][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.824356][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.824529][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.824718][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.824892][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.825064][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.825263][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.825438][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.825607][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.825799][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.825973][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.826143][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.826315][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.826488][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.826673][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.826851][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.827020][   T68]  kthread (kernel/kthread.c:436)
[   89.827160][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.827360][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.827531][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.827721][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.827926][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.828097][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.828266][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.830941][   T68] ------------[ cut here ]------------
| [   89.831102][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   89.831377][   T68] Modules linked in: ipvtap ipvlan
| [   89.832355][   T68] Tainted: [W]=WARN
[   89.832581][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.832883][   T68] Workqueue: netns cleanup_net
[   89.833119][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.833381][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.833922][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   89.834186][   T68] RAX: 00000000ffffffa6 RBX: ff1100000fd30900 RCX: 1ff4000000092ed5
[   89.834470][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fd309bc
[   89.834780][   T68] RBP: ff110000137c9000 R08: 1fe2200001fa6139 R09: ff110000090e2ed0
[   89.835050][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   89.835269][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.835493][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   89.835769][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.835966][   T68] CR2: 00005559f71fda78 CR3: 000000004814d004 CR4: 0000000000771ef0
[   89.836221][   T68] PKRU: 55555554
[   89.836355][   T68] Call Trace:
[   89.836489][   T68]  <TASK>
[   89.836598][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.836814][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.837010][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.837195][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.837376][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.837541][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.837725][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.837897][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.838066][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.838229][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.838400][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.838569][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.838751][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.838919][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.839083][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.839252][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.839423][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.839593][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.839782][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.839950][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.840117][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.840281][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.840444][   T68]  kthread (kernel/kthread.c:436)
[   89.840578][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.840830][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.840995][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.841160][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.841354][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.841521][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.841706][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.878158][   T68] ------------[ cut here ]------------
| [   89.878317][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   89.878551][   T68] Modules linked in: ipvtap ipvlan
| [   89.878966][   T68] Tainted: [W]=WARN
[   89.879053][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.879198][   T68] Workqueue: netns cleanup_net
[   89.879319][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.879471][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.879902][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.880050][   T68] RAX: 00000000ffffffa6 RBX: ff1100001a9f2e40 RCX: 1ff4000000092eed
[   89.880222][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001a9f2efc
[   89.880397][   T68] RBP: ff11000014534000 R08: 1fe220000353e5e1 R09: ff110000090e2ed0
[   89.880571][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   89.880755][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.880930][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   89.881133][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.881279][   T68] CR2: 00005559e9c8fae8 CR3: 0000000009dc3001 CR4: 0000000000771ef0
[   89.881454][   T68] PKRU: 55555554
[   89.881542][   T68] Call Trace:
[   89.881629][   T68]  <TASK>
[   89.881748][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.881900][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.882097][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.882219][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.882337][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.882452][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.882570][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.882739][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.882862][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.882979][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.883098][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.883216][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.883332][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.883449][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.883565][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.883734][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.883855][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.883971][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.884093][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.884213][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.884331][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.884449][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.884564][   T68]  kthread (kernel/kthread.c:436)
[   89.884691][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.884843][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.884962][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.885080][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.885225][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.885356][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.885474][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.887693][   T68] ------------[ cut here ]------------
| [   89.887814][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   89.888038][   T68] Modules linked in: ipvtap ipvlan
| [   89.888425][   T68] Tainted: [W]=WARN
[   89.888513][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.888664][   T68] Workqueue: netns cleanup_net
[   89.888790][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.888942][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.889354][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.889499][   T68] RAX: 00000000ffffffa6 RBX: ff1100001a9f23c0 RCX: 1ff4000000092eed
[   89.889676][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001a9f247c
[   89.889851][   T68] RBP: ff11000014511000 R08: 1fe220000353e491 R09: ff110000090e2ed0
[   89.890024][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   89.890200][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.890373][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   89.890576][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.890737][   T68] CR2: 00005559e9c8fae8 CR3: 0000000009dc3001 CR4: 0000000000771ef0
[   89.890918][   T68] PKRU: 55555554
[   89.891003][   T68] Call Trace:
[   89.891089][   T68]  <TASK>
[   89.891149][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.891298][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.891442][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.891558][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.891679][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.891802][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.891923][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.892040][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.892158][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.892272][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.892394][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.892510][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.892625][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.892753][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.892873][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.892992][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.893110][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.893228][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.893349][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.893468][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.893584][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.893710][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.893826][   T68]  kthread (kernel/kthread.c:436)
[   89.893913][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.894056][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.894174][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.894291][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.894436][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.894553][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.894673][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.896838][   T68] ------------[ cut here ]------------
| [   89.897008][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   89.897252][   T68] Modules linked in: ipvtap ipvlan
| [   89.897639][   T68] Tainted: [W]=WARN
[   89.897801][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.897998][   T68] Workqueue: netns cleanup_net
[   89.898118][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.898269][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.898748][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.898901][   T68] RAX: 00000000ffffffa6 RBX: ff11000012aca3c0 RCX: 1ff4000000092eed
[   89.899077][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012aca47c
[   89.899253][   T68] RBP: ff110000144a4000 R08: 1fe2200002559491 R09: ff110000090e2ed0
[   89.899427][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   89.899600][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.899862][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   89.900148][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.900294][   T68] CR2: 00005559e9c8fae8 CR3: 000000004814d005 CR4: 0000000000771ef0
[   89.900474][   T68] PKRU: 55555554
[   89.900562][   T68] Call Trace:
[   89.900647][   T68]  <TASK>
[   89.900771][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.900920][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.901063][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.901180][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.901298][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.901415][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.901531][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.901648][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.901851][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.901966][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.902086][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.902206][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.902367][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.902490][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.902604][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.902772][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.902891][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.903005][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.903125][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.903241][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.903357][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.903476][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.903591][   T68]  kthread (kernel/kthread.c:436)
[   89.903728][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.903870][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.903985][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.904101][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.904247][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.904365][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.904480][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.907460][   T68] ------------[ cut here ]------------
| [   89.907592][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   89.907834][   T68] Modules linked in: ipvtap ipvlan
| [   89.908220][   T68] Tainted: [W]=WARN
[   89.908308][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.908459][   T68] Workqueue: netns cleanup_net
[   89.908581][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.908741][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.909157][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.909303][   T68] RAX: 00000000ffffffa6 RBX: ff11000012aca740 RCX: 1ff4000000092eed
[   89.909474][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012aca7fc
[   89.909647][   T68] RBP: ff1100001448c000 R08: 1fe2200002559501 R09: ff110000090e2ed0
[   89.909905][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   89.910119][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.910294][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   89.910498][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.910643][   T68] CR2: 00005559e9c93d5c CR3: 0000000009dc3002 CR4: 0000000000771ef0
[   89.910830][   T68] PKRU: 55555554
[   89.910916][   T68] Call Trace:
[   89.911002][   T68]  <TASK>
[   89.911064][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.911219][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.911365][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.911483][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.911599][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.911726][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.911842][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.911961][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.912079][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.912194][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.912312][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.912432][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.912548][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.912670][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.912788][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.912906][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.913026][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.913141][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.913265][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.913382][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.913499][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.913622][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.913751][   T68]  kthread (kernel/kthread.c:436)
[   89.913837][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.913980][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.914096][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.914211][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.914356][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.914470][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.914591][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.916554][   T68] ------------[ cut here ]------------
| [   89.916675][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   89.916903][   T68] Modules linked in: ipvtap ipvlan
| [   89.917286][   T68] Tainted: [W]=WARN
[   89.917374][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.917519][   T68] Workqueue: netns cleanup_net
[   89.917638][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.917799][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.918218][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   89.918363][   T68] RAX: 00000000ffffffa6 RBX: ff11000012acaac0 RCX: 1ff4000000092eed
[   89.918537][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012acab7c
[   89.918722][   T68] RBP: ff1100000fcdc000 R08: 1fe2200002559571 R09: ff110000090e2ed0
[   89.918897][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   89.919070][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.919247][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   89.919450][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.919601][   T68] CR2: 00005559e9c93d5c CR3: 0000000009dc3002 CR4: 0000000000771ef0
[   89.919782][   T68] PKRU: 55555554
[   89.919870][   T68] Call Trace:
[   89.919956][   T68]  <TASK>
[   89.920015][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.920166][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.920310][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   89.920431][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   89.920548][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.920665][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   89.920786][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.920904][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   89.921022][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.921138][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.921256][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.921373][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.921489][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.921606][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.921732][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.921851][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.921970][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.922090][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.922213][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.922330][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.922451][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.922569][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.922690][   T68]  kthread (kernel/kthread.c:436)
[   89.922781][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.922925][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.923046][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.923161][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.923312][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.923428][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.923545][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.937435][   T68] ------------[ cut here ]------------
| [   89.937569][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   89.937830][   T68] Modules linked in: ipvtap ipvlan
| [   89.938238][   T68] Tainted: [W]=WARN
[   89.938330][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.938480][   T68] Workqueue: netns cleanup_net
[   89.938605][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.939272][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.939774][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   89.939930][   T68] RAX: 00000000ffffffa6 RBX: ff11000012acac80 RCX: 1ff4000000092eaf
[   89.940111][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012acad3c
[   89.940297][   T68] RBP: ff11000012cc4000 R08: 1fe22000025595a9 R09: ff110000090e2ed0
[   89.940478][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   89.940715][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   89.940897][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   89.941110][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.941265][   T68] CR2: 00005559e9c93d5c CR3: 0000000009dc3002 CR4: 0000000000771ef0
[   89.941449][   T68] PKRU: 55555554
[   89.941541][   T68] Call Trace:
[   89.941631][   T68]  <TASK>
[   89.941748][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   89.941875][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   89.941968][   T68]  netif_close_many (net/core/dev.c:1804)
[   89.942090][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.942212][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.942335][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.942461][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   89.942585][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   89.942793][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   89.942948][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.943071][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   89.943192][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   89.943313][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.943468][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.943593][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.943773][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.943894][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.944015][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.944139][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.944262][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.944382][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.944507][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.944629][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.944807][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.944930][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.945051][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.945173][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.945299][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.945419][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.945545][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.945706][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.945828][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.945955][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.946075][   T68]  kthread (kernel/kthread.c:436)
[   89.946167][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.946318][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.946438][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.946561][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.946725][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.946849][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.946974][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.949175][   T68] ------------[ cut here ]------------
| [   89.949293][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   89.949521][   T68] Modules linked in: ipvtap ipvlan
| [   89.950400][   T68] Tainted: [W]=WARN
[   89.950493][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.950639][   T68] Workqueue: netns cleanup_net
[   89.950816][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   89.951009][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   89.951442][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   89.951594][   T68] RAX: 00000000ffffffa6 RBX: ff11000018db5e00 RCX: 1ff4000000092ed5
[   89.951826][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000018db5ebc
[   89.952008][   T68] RBP: ff11000012cc4000 R08: 1fe22000031b6bd9 R09: ff110000090e2ed0
[   89.952191][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   89.952366][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   89.952542][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   89.952833][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.953026][   T68] CR2: 00005559e9c93d5c CR3: 0000000009dc3002 CR4: 0000000000771ef0
[   89.953210][   T68] PKRU: 55555554
[   89.953296][   T68] Call Trace:
[   89.953383][   T68]  <TASK>
[   89.953443][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   89.953592][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   89.953811][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.953930][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   89.954050][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   89.954167][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   89.954286][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   89.954408][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   89.954531][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   89.954646][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   89.954833][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   89.954951][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.955068][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   89.955186][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   89.955302][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   89.955421][   T68]  process_one_work (kernel/workqueue.c:3314)
[   89.955542][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   89.955729][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   89.955850][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   89.955971][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.956091][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   89.956209][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   89.956326][   T68]  kthread (kernel/kthread.c:436)
[   89.956414][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.956559][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.956746][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.956863][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   89.957010][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.957130][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   89.957245][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   89.999196][   T68] ------------[ cut here ]------------
| [   89.999345][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   89.999586][   T68] Modules linked in: ipvtap ipvlan
| [   89.999997][   T68] Tainted: [W]=WARN
[   90.000086][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.000236][   T68] Workqueue: netns cleanup_net
[   90.000358][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.000512][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.000939][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.001089][   T68] RAX: 00000000ffffffa6 RBX: ff110000166f6ac0 RCX: 1ff4000000092eed
[   90.001269][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166f6b7c
[   90.001442][   T68] RBP: ff1100001476c000 R08: 1fe2200002cded71 R09: ff110000090e2ed0
[   90.001617][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   90.001807][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.001987][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   90.002190][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.002335][   T68] CR2: 00005559e9c93d5c CR3: 000000004814d005 CR4: 0000000000771ef0
[   90.002516][   T68] PKRU: 55555554
[   90.002603][   T68] Call Trace:
[   90.002694][   T68]  <TASK>
[   90.002764][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.002916][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.003061][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.003181][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.003299][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.003413][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.003532][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.003647][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.003775][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.003889][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.004006][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.004122][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.004240][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.004359][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.004475][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.004593][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.004725][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.004843][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.004964][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.005081][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.005196][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.005317][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.005433][   T68]  kthread (kernel/kthread.c:436)
[   90.005519][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.005666][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.005786][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.005905][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.006053][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.006167][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.006281][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.008474][   T68] ------------[ cut here ]------------
| [   90.008592][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   90.008828][   T68] Modules linked in: ipvtap ipvlan
| [   90.009208][   T68] Tainted: [W]=WARN
[   90.009295][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.009436][   T68] Workqueue: netns cleanup_net
[   90.009556][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.009716][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.010122][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.010266][   T68] RAX: 00000000ffffffa6 RBX: ff1100001ac99c40 RCX: 1ff4000000092eed
[   90.010436][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001ac99cfc
[   90.010608][   T68] RBP: ff11000014569000 R08: 1fe22000035933a1 R09: ff110000090e2ed0
[   90.010791][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   90.010964][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.011138][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   90.011337][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.011482][   T68] CR2: 00005559e9c93d5c CR3: 000000004814d005 CR4: 0000000000771ef0
[   90.011664][   T68] PKRU: 55555554
[   90.011756][   T68] Call Trace:
[   90.011841][   T68]  <TASK>
[   90.011901][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.012053][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.012195][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.012314][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.012429][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.012546][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.012665][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.012785][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.012902][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.013017][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.013137][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.013253][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.013367][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.013483][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.013597][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.013725][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.013845][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.013961][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.014082][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.014206][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.014322][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.014439][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.014553][   T68]  kthread (kernel/kthread.c:436)
[   90.014639][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.014794][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.014909][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.015026][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.015172][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.015289][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.015405][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.017578][   T68] ------------[ cut here ]------------
| [   90.017700][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   90.017934][   T68] Modules linked in: ipvtap ipvlan
| [   90.018319][   T68] Tainted: [W]=WARN
[   90.018405][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.018550][   T68] Workqueue: netns cleanup_net
[   90.018676][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.018830][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.019240][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.019384][   T68] RAX: 00000000ffffffa6 RBX: ff1100001ac99540 RCX: 1ff4000000092eed
[   90.019557][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001ac995fc
[   90.019739][   T68] RBP: ff110000146ec000 R08: 1fe22000035932c1 R09: ff110000090e2ed0
[   90.019909][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   90.020082][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.020313][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   90.020532][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.020702][   T68] CR2: 00005559e9c93d5c CR3: 000000004814d005 CR4: 0000000000771ef0
[   90.020891][   T68] PKRU: 55555554
[   90.020987][   T68] Call Trace:
[   90.021079][   T68]  <TASK>
[   90.021144][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.021301][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.021445][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.021561][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.021683][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.021803][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.021921][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.022040][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.022159][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.022274][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.022393][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.022508][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.022623][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.022751][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.022865][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.022981][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.023100][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.023216][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.023337][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.023454][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.023570][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.023692][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.023812][   T68]  kthread (kernel/kthread.c:436)
[   90.023899][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.024049][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.024165][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.024281][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.024426][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.024543][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.024662][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.026626][   T68] ------------[ cut here ]------------
| [   90.026750][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   90.026978][   T68] Modules linked in: ipvtap ipvlan
| [   90.027359][   T68] Tainted: [W]=WARN
[   90.027446][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.027589][   T68] Workqueue: netns cleanup_net
[   90.027720][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.027870][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.028280][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.028430][   T68] RAX: 00000000ffffffa6 RBX: ff1100001ac99e00 RCX: 1ff4000000092eed
[   90.028606][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001ac99ebc
[   90.028789][   T68] RBP: ff1100001469c000 R08: 1fe22000035933d9 R09: ff110000090e2ed0
[   90.028960][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   90.029135][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.029307][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   90.029510][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.029658][   T68] CR2: 00005559e9c93d5c CR3: 000000004814d005 CR4: 0000000000771ef0
[   90.029837][   T68] PKRU: 55555554
[   90.029925][   T68] Call Trace:
[   90.030011][   T68]  <TASK>
[   90.030072][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.030220][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.030365][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.030487][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.030603][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.030728][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.030845][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.030961][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.031078][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.031192][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.031309][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.031426][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.031541][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.031665][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.031785][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.031903][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.032020][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.032138][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.032258][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.032375][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.032496][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.032620][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.032745][   T68]  kthread (kernel/kthread.c:436)
[   90.032831][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.032977][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.033097][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.033216][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.033366][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.033485][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.033607][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.035576][   T68] ------------[ cut here ]------------
| [   90.035694][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   90.035927][   T68] Modules linked in: ipvtap ipvlan
| [   90.036302][   T68] Tainted: [W]=WARN
[   90.036389][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.036532][   T68] Workqueue: netns cleanup_net
[   90.036655][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.036812][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.037219][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.037364][   T68] RAX: 00000000ffffffa6 RBX: ff1100001ac98740 RCX: 1ff4000000092eed
[   90.037538][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001ac987fc
[   90.037718][   T68] RBP: ff1100001468c000 R08: 1fe2200003593101 R09: ff110000090e2ed0
[   90.037889][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   90.038060][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.038235][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   90.038437][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.038581][   T68] CR2: 00005559e9c93d5c CR3: 000000004814d005 CR4: 0000000000771ef0
[   90.038846][   T68] PKRU: 55555554
[   90.038932][   T68] Call Trace:
[   90.039018][   T68]  <TASK>
[   90.039078][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.039299][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.039440][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.039556][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.039751][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.039867][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.039984][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.040102][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.040220][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.040405][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.040523][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.040640][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.040835][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.040955][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.041069][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.041186][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.041305][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.041493][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.041614][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.041740][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.041854][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.042045][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.042159][   T68]  kthread (kernel/kthread.c:436)
[   90.042245][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.042394][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.042581][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.042708][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.042851][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.043040][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.043161][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.061141][   T68] ------------[ cut here ]------------
| [   90.061288][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   90.061533][   T68] Modules linked in: ipvtap ipvlan
| [   90.061948][   T68] Tainted: [W]=WARN
[   90.062046][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.062202][   T68] Workqueue: netns cleanup_net
[   90.062330][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.062491][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.062951][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   90.063107][   T68] RAX: 00000000ffffffa6 RBX: ff1100001ac991c0 RCX: 1ff4000000092eaf
[   90.063300][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001ac9927c
[   90.063484][   T68] RBP: ff110000139c9000 R08: 1fe2200003593251 R09: ff110000090e2ed0
[   90.063670][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   90.063856][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   90.064040][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   90.064260][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.064415][   T68] CR2: 00005559e9c93d5c CR3: 000000004814d005 CR4: 0000000000771ef0
[   90.064601][   T68] PKRU: 55555554
[   90.064702][   T68] Call Trace:
[   90.064795][   T68]  <TASK>
[   90.064860][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   90.064984][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   90.065078][   T68]  netif_close_many (net/core/dev.c:1804)
[   90.065202][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.065324][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.065446][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.065567][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   90.065700][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   90.065859][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   90.066013][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.066136][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.066259][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   90.066383][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.066538][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.066736][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   90.066860][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   90.066982][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.067105][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   90.067230][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   90.067356][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.067479][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.067605][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.067785][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.067964][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.068091][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.068215][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.068338][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.068463][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.068588][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.068781][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.068906][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.069028][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.069153][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.069276][   T68]  kthread (kernel/kthread.c:436)
[   90.069369][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.069523][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.069648][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.069826][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.069978][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.070101][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.070226][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.073004][   T68] ------------[ cut here ]------------
| [   90.073173][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   90.073453][   T68] Modules linked in: ipvtap ipvlan
| [   90.073970][   T68] Tainted: [W]=WARN
[   90.074110][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.074309][   T68] Workqueue: netns cleanup_net
[   90.074487][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.074716][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.075199][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   90.075394][   T68] RAX: 00000000ffffffa6 RBX: ff11000016da7e00 RCX: 1ff4000000092ed5
[   90.075664][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016da7ebc
[   90.075890][   T68] RBP: ff110000139c9000 R08: 1fe2200002db4fd9 R09: ff110000090e2ed0
[   90.076146][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   90.076393][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.076619][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   90.076892][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.077091][   T68] CR2: 00005559f72852a8 CR3: 0000000009dc3005 CR4: 0000000000771ef0
[   90.077315][   T68] PKRU: 55555554
[   90.077475][   T68] Call Trace:
[   90.077609][   T68]  <TASK>
[   90.077737][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.077938][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.078135][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.078315][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   90.078485][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   90.078685][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.078860][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   90.079030][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   90.079212][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.079380][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.079554][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.079744][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.079912][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.080080][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.080249][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.080421][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.080621][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.080815][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.080987][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.081156][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.081322][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.081493][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.081704][   T68]  kthread (kernel/kthread.c:436)
[   90.081846][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.082044][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.082212][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.082379][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.082588][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.082780][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.082948][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.144094][   T68] ------------[ cut here ]------------
| [   90.144275][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   90.144549][   T68] Modules linked in: ipvtap ipvlan
| [   90.145057][   T68] Tainted: [W]=WARN
[   90.145198][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.145392][   T68] Workqueue: netns cleanup_net
[   90.145577][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.145873][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.146413][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.146693][   T68] RAX: 00000000ffffffa6 RBX: ff11000016da6ac0 RCX: 1ff4000000092eed
[   90.146985][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000016da6b7c
[   90.147273][   T68] RBP: ff11000013cac000 R08: 1fe2200002db4d71 R09: ff110000090e2ed0
[   90.147571][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   90.147819][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.148050][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   90.148308][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.148502][   T68] CR2: 00007f9723a3c2a0 CR3: 000000004814d005 CR4: 0000000000771ef0
[   90.149587][   T68] PKRU: 55555554
[   90.149740][   T68] Call Trace:
[   90.149881][   T68]  <TASK>
[   90.149992][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.150223][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.150415][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.150580][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.150768][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.150959][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.151136][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.151305][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.151472][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.151637][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.151825][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.152020][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.152191][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.152359][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.152525][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.152710][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.152879][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.153043][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.153241][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.153414][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.153577][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.153799][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.153965][   T68]  kthread (kernel/kthread.c:436)
[   90.154104][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.154297][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.154493][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.154681][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.154885][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.155048][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.155211][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.158555][   T68] ------------[ cut here ]------------
| [   90.158734][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   90.159052][   T68] Modules linked in: ipvtap ipvlan
| [   90.159609][   T68] Tainted: [W]=WARN
[   90.159763][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.160198][   T68] Workqueue: netns cleanup_net
[   90.160367][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.160577][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.161211][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.161434][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c431c40 RCX: 1ff4000000092eed
[   90.161675][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c431cfc
[   90.161980][   T68] RBP: ff1100001470c000 R08: 1fe22000018863a1 R09: ff110000090e2ed0
[   90.162271][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   90.162498][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.162811][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   90.163344][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.163548][   T68] CR2: 00007f9723a3c2a0 CR3: 000000004814d005 CR4: 0000000000771ef0
[   90.163868][   T68] PKRU: 55555554
[   90.164073][   T68] Call Trace:
[   90.164206][   T68]  <TASK>
[   90.164315][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.164510][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.164720][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.164885][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.165053][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.165218][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.165461][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.165629][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.165824][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.165987][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.166231][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.166403][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.166568][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.166839][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.167062][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.167281][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.167503][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.167744][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.167959][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.168186][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.168400][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.168707][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.168919][   T68]  kthread (kernel/kthread.c:436)
[   90.169110][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.169347][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.169561][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.169789][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.170057][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.170267][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.170480][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.174926][   T68] ------------[ cut here ]------------
| [   90.175101][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   90.176004][   T68] Modules linked in: ipvtap ipvlan
| [   90.176626][   T68] Tainted: [W]=WARN
[   90.176784][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.176928][   T68] Workqueue: netns cleanup_net
[   90.177049][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.177201][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.177639][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.177855][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c430900 RCX: 1ff4000000092eed
[   90.178029][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4309bc
[   90.178198][   T68] RBP: ff11000013cdc000 R08: 1fe2200001886139 R09: ff110000090e2ed0
[   90.178370][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   90.179444][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.179625][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   90.179904][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.180047][   T68] CR2: 00007ffe374dbfe0 CR3: 0000000009dc3001 CR4: 0000000000771ef0
[   90.180223][   T68] PKRU: 55555554
[   90.180310][   T68] Call Trace:
[   90.180394][   T68]  <TASK>
[   90.180456][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.180602][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.180793][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.180908][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.181025][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.181141][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.181258][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.181374][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.181492][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.181607][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.181821][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.181943][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.182058][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.182177][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.182291][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.182408][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.182526][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.182640][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.182771][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.182888][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.183003][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.183119][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.183238][   T68]  kthread (kernel/kthread.c:436)
[   90.183325][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.183467][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.183581][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.183706][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.183854][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.183969][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.184084][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.186399][   T68] ------------[ cut here ]------------
| [   90.186604][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   90.186913][   T68] Modules linked in: ipvtap ipvlan
| [   90.187297][   T68] Tainted: [W]=WARN
[   90.187390][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.187535][   T68] Workqueue: netns cleanup_net
[   90.187710][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.187859][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.188273][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.188423][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c4303c0 RCX: 1ff4000000092eed
[   90.188746][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c43047c
[   90.188918][   T68] RBP: ff11000013099000 R08: 1fe2200001886091 R09: ff110000090e2ed0
[   90.189087][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   90.189263][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.189440][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   90.189639][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.189889][   T68] CR2: 00007ffe374dbfe0 CR3: 0000000009dc3001 CR4: 0000000000771ef0
[   90.190069][   T68] PKRU: 55555554
[   90.190155][   T68] Call Trace:
[   90.190240][   T68]  <TASK>
[   90.190301][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.190447][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.190591][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.190806][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.190924][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.191041][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.191157][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.191274][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.191390][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.191505][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.191621][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.191915][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.192029][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.192146][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.192260][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.192397][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.192516][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.192631][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.192840][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.192957][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.193074][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.193190][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.193306][   T68]  kthread (kernel/kthread.c:436)
[   90.193394][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.193537][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.193747][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.193861][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.194008][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.194123][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.194257][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.196541][   T68] ------------[ cut here ]------------
| [   90.196681][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   90.196915][   T68] Modules linked in: ipvtap ipvlan
| [   90.197294][   T68] Tainted: [W]=WARN
[   90.197702][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.197853][   T68] Workqueue: netns cleanup_net
[   90.197974][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.198127][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.198547][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.198707][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c430040 RCX: 1ff4000000092eed
[   90.198883][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4300fc
[   90.199056][   T68] RBP: ff1100000f131000 R08: 1fe2200001886021 R09: ff110000090e2ed0
[   90.199251][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   90.199430][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.199606][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   90.199816][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.199961][   T68] CR2: 00007f5bd4fab000 CR3: 000000004814d004 CR4: 0000000000771ef0
[   90.200139][   T68] PKRU: 55555554
[   90.200225][   T68] Call Trace:
[   90.200312][   T68]  <TASK>
[   90.200372][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.200520][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.200667][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.200801][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.200920][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.201036][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.201151][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.201269][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.201387][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.201502][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.201620][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.201765][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.201882][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.202002][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.202117][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.202234][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.202355][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.202469][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.202589][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.202717][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.202835][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.202955][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.203069][   T68]  kthread (kernel/kthread.c:436)
[   90.203157][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.203300][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.203415][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.203534][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.203688][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.203816][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.203932][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.215538][   T68] ------------[ cut here ]------------
| [   90.215692][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   90.215942][   T68] Modules linked in: ipvtap ipvlan
| [   90.216350][   T68] Tainted: [W]=WARN
[   90.216442][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.216594][   T68] Workqueue: netns cleanup_net
[   90.216803][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.216961][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.217404][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   90.217557][   T68] RAX: 00000000ffffffa6 RBX: ff110000166cf380 RCX: 1ff4000000092eaf
[   90.217779][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166cf43c
[   90.217959][   T68] RBP: ff110000139d9000 R08: 1fe2200002cd9e89 R09: ff110000090e2ed0
[   90.218169][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   90.218350][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   90.218532][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   90.218756][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.218910][   T68] CR2: 00005559e9c8fae8 CR3: 000000004814d005 CR4: 0000000000771ef0
[   90.219102][   T68] PKRU: 55555554
[   90.219194][   T68] Call Trace:
[   90.219287][   T68]  <TASK>
[   90.219350][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   90.219473][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   90.219566][   T68]  netif_close_many (net/core/dev.c:1804)
[   90.219705][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.219855][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.219977][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.220098][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   90.220221][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   90.220378][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   90.220535][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.220662][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.220793][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   90.220913][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.221067][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.221192][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   90.221316][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   90.221439][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.221560][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   90.221691][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   90.221817][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.221937][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.222062][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.222185][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.222306][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.222428][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.222550][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.222678][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.222809][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.222932][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.223058][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.223181][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.223303][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.223428][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.223553][   T68]  kthread (kernel/kthread.c:436)
[   90.223645][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.223807][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.223929][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.224053][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.224214][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.224336][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.224461][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.227259][   T68] ------------[ cut here ]------------
| [   90.227394][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   90.227630][   T68] Modules linked in: ipvtap ipvlan
| [   90.228057][   T68] Tainted: [W]=WARN
[   90.228147][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.228296][   T68] Workqueue: netns cleanup_net
[   90.228420][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.228575][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.229007][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   90.229160][   T68] RAX: 00000000ffffffa6 RBX: ff110000146d3380 RCX: 1ff4000000092ed5
[   90.229336][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000146d343c
[   90.229513][   T68] RBP: ff110000139d9000 R08: 1fe22000028da689 R09: ff110000090e2ed0
[   90.229701][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   90.229903][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.230083][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   90.230289][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.230439][   T68] CR2: 00005559e9c8fae8 CR3: 000000004814d005 CR4: 0000000000771ef0
[   90.230615][   T68] PKRU: 55555554
[   90.230713][   T68] Call Trace:
[   90.230801][   T68]  <TASK>
[   90.230863][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.231013][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.231161][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.231329][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   90.231467][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   90.231589][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.231727][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   90.231848][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   90.231967][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.232084][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.232204][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.232326][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.232443][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.232562][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.232685][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.232809][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.232936][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.233055][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.233180][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.233299][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.233423][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.233542][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.233664][   T68]  kthread (kernel/kthread.c:436)
[   90.233759][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.233905][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.234025][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.234141][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.234286][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.234403][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.234522][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.285901][   T68] ------------[ cut here ]------------
| [   90.286048][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   90.286284][   T68] Modules linked in: ipvtap ipvlan
| [   90.286777][   T68] Tainted: [W]=WARN
[   90.286865][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.287009][   T68] Workqueue: netns cleanup_net
[   90.287129][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.287281][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.287705][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.287851][   T68] RAX: 00000000ffffffa6 RBX: ff11000019c03a80 RCX: 1ff4000000092eed
[   90.288023][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000019c03b3c
[   90.288195][   T68] RBP: ff11000014ae4000 R08: 1fe2200003380769 R09: ff110000090e2ed0
[   90.288366][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   90.288537][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.288728][   T68] FS:  0000000000000000(0000) GS:ff110000c3347000(0000) knlGS:0000000000000000
[   90.288928][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.289072][   T68] CR2: 00005559e9c8fae8 CR3: 000000004814d005 CR4: 0000000000771ef0
[   90.289246][   T68] PKRU: 55555554
[   90.289331][   T68] Call Trace:
[   90.289416][   T68]  <TASK>
[   90.289477][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.289631][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.289790][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.289906][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.290023][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.290142][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.290259][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.290375][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.290492][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.290607][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.290736][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.290853][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.290969][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.291087][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.291202][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.291320][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.291439][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.291555][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.291681][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.291802][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.291918][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.292035][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.292150][   T68]  kthread (kernel/kthread.c:436)
[   90.292238][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.292385][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.292502][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.292623][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.292777][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.292895][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.293016][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.302460][   T68] ------------[ cut here ]------------
| [   90.302588][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   90.302836][   T68] Modules linked in: ipvtap ipvlan
| [   90.303218][   T68] Tainted: [W]=WARN
[   90.303305][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.303452][   T68] Workqueue: netns cleanup_net
[   90.303577][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.303754][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.304167][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.304316][   T68] RAX: 00000000ffffffa6 RBX: ff11000019c031c0 RCX: 1ff4000000092eed
[   90.304489][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000019c0327c
[   90.304664][   T68] RBP: ff11000014ac1000 R08: 1fe2200003380651 R09: ff110000090e2ed0
[   90.304844][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   90.305015][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.305189][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   90.305393][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.305539][   T68] CR2: 00007f8c19ce5888 CR3: 00000000121d5003 CR4: 0000000000771ef0
[   90.305725][   T68] PKRU: 55555554
[   90.305811][   T68] Call Trace:
[   90.305896][   T68]  <TASK>
[   90.305957][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.306107][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.306253][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.306375][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.306491][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.306604][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.306731][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.306849][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.306967][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.307086][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.307206][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.307323][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.307439][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.307559][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.307680][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.307802][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.307921][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.308037][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.308157][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.308275][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.308396][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.308513][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.308628][   T68]  kthread (kernel/kthread.c:436)
[   90.308728][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.308873][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.308989][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.309105][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.309250][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.309366][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.309482][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.311649][   T68] ------------[ cut here ]------------
| [   90.311776][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   90.312006][   T68] Modules linked in: ipvtap ipvlan
| [   90.312382][   T68] Tainted: [W]=WARN
[   90.312469][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.312614][   T68] Workqueue: netns cleanup_net
[   90.312742][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.312891][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.313302][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.313452][   T68] RAX: 00000000ffffffa6 RBX: ff11000019c02ac0 RCX: 1ff4000000092eed
[   90.313626][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000019c02b7c
[   90.313808][   T68] RBP: ff11000014a8c000 R08: 1fe2200003380571 R09: ff110000090e2ed0
[   90.313982][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   90.314155][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.314328][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   90.314534][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.314686][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   90.314864][   T68] PKRU: 55555554
[   90.314950][   T68] Call Trace:
[   90.315036][   T68]  <TASK>
[   90.315098][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.315251][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.315395][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.315513][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.315633][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.315764][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.315883][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.316002][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.316121][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.316240][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.316362][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.316479][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.316593][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.316719][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.316834][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.316954][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.317073][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.317189][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.317315][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.317429][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.317545][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.317669][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.317791][   T68]  kthread (kernel/kthread.c:436)
[   90.317877][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.318023][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.318138][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.318255][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.318399][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.318514][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.318629][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.321215][   T68] ------------[ cut here ]------------
| [   90.321336][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   90.321637][   T68] Modules linked in: ipvtap ipvlan
| [   90.322032][   T68] Tainted: [W]=WARN
[   90.322195][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.322344][   T68] Workqueue: netns cleanup_net
[   90.322464][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.322613][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.323117][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.323338][   T68] RAX: 00000000ffffffa6 RBX: ff11000019c03000 RCX: 1ff4000000092eed
[   90.323512][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000019c030bc
[   90.323692][   T68] RBP: ff11000013154000 R08: 1fe2200003380619 R09: ff110000090e2ed0
[   90.323866][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   90.324039][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.324212][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   90.324416][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.324566][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   90.324750][   T68] PKRU: 55555554
[   90.324836][   T68] Call Trace:
[   90.324924][   T68]  <TASK>
[   90.324984][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.325205][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.325348][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.325537][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.325664][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.325855][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.326045][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.326163][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.326284][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.326471][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.326593][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.326718][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.326834][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.327029][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.327144][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.327263][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.327384][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.327570][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.327702][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.327823][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.327939][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.328128][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.328389][   T68]  kthread (kernel/kthread.c:436)
[   90.328481][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.328625][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.328752][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.328869][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.329015][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.329203][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.329322][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.331879][   T68] ------------[ cut here ]------------
| [   90.331997][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   90.332295][   T68] Modules linked in: ipvtap ipvlan
| [   90.332761][   T68] Tainted: [W]=WARN
[   90.332849][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.332997][   T68] Workqueue: netns cleanup_net
[   90.333118][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.333284][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.333704][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.333926][   T68] RAX: 00000000ffffffa6 RBX: ff11000019c03540 RCX: 1ff4000000092eed
[   90.334104][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000019c035fc
[   90.334278][   T68] RBP: ff11000014a71000 R08: 1fe22000033806c1 R09: ff110000090e2ed0
[   90.334525][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   90.334711][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.334960][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   90.335237][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.335383][   T68] CR2: 00007f8c19ce5888 CR3: 000000004814d001 CR4: 0000000000771ef0
[   90.335559][   T68] PKRU: 55555554
[   90.335648][   T68] Call Trace:
[   90.335743][   T68]  <TASK>
[   90.335804][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.335954][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.336103][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.336362][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.336485][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.336676][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.336798][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.336918][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.337036][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.337152][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.337277][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.337396][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.337513][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.337784][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.337900][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.338022][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.338142][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.338329][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.338449][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.338567][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.338689][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.338954][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.339071][   T68]  kthread (kernel/kthread.c:436)
[   90.339159][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.339303][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.339420][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.339537][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.339692][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.339816][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.340003][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.361732][   T68] ------------[ cut here ]------------
| [   90.361907][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   90.362271][   T68] Modules linked in: ipvtap ipvlan
| [   90.362816][   T68] Tainted: [W]=WARN
[   90.362963][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.363172][   T68] Workqueue: netns cleanup_net
[   90.363351][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.363557][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.364066][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   90.364268][   T68] RAX: 00000000ffffffa6 RBX: ff1100001ac67e00 RCX: 1ff4000000092eaf
[   90.364501][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001ac67ebc
[   90.364753][   T68] RBP: ff110000105c9000 R08: 1fe220000358cfd9 R09: ff110000090e2ed0
[   90.364986][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   90.365217][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   90.365448][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   90.365827][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.366078][   T68] CR2: 00007fc40902f668 CR3: 000000001a003005 CR4: 0000000000771ef0
[   90.366395][   T68] PKRU: 55555554
[   90.366591][   T68] Call Trace:
[   90.366793][   T68]  <TASK>
[   90.366991][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   90.367211][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   90.367402][   T68]  netif_close_many (net/core/dev.c:1804)
[   90.367646][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.367965][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.368197][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.368368][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   90.368539][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   90.368757][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   90.368957][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.369127][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.369296][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   90.369466][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.369685][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.369866][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   90.370038][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   90.370210][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.370380][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   90.370551][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   90.370744][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.370913][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.371091][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.371262][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.371432][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.371602][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.371796][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.371969][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.372143][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.372315][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.372488][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.372674][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.372853][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.373024][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.373193][   T68]  kthread (kernel/kthread.c:436)
[   90.373332][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.373532][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.373725][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.373897][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.374097][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.374268][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.374438][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.377220][   T68] ------------[ cut here ]------------
| [   90.377382][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   90.377730][   T68] Modules linked in: ipvtap ipvlan
| [   90.378266][   T68] Tainted: [W]=WARN
[   90.378401][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.378594][   T68] Workqueue: netns cleanup_net
[   90.378808][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.379011][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.379469][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   90.379677][   T68] RAX: 00000000ffffffa6 RBX: ff110000166f6740 RCX: 1ff4000000092ed5
[   90.379907][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166f67fc
[   90.380129][   T68] RBP: ff110000105c9000 R08: 1fe2200002cded01 R09: ff110000090e2ed0
[   90.380349][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   90.380572][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.380812][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   90.381066][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.381259][   T68] CR2: 00007fc40902f668 CR3: 000000004814d006 CR4: 0000000000771ef0
[   90.381484][   T68] PKRU: 55555554
[   90.381620][   T68] Call Trace:
[   90.381775][   T68]  <TASK>
[   90.381885][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.382086][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.382284][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.382451][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   90.382618][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   90.382808][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.382973][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   90.383141][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   90.383309][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.383471][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.383639][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.383827][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.383995][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.384163][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.384328][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.384496][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.384681][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.384853][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.385023][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.385191][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.385356][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.385523][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.385709][   T68]  kthread (kernel/kthread.c:436)
[   90.385846][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.386041][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.386208][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.386374][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.386568][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.386756][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.386923][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.415898][   T68] ------------[ cut here ]------------
| [   90.416063][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   90.416339][   T68] Modules linked in: ipvtap ipvlan
| [   90.416837][   T68] Tainted: [W]=WARN
[   90.416970][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.417160][   T68] Workqueue: netns cleanup_net
[   90.417328][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.417527][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.418008][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.418201][   T68] RAX: 00000000ffffffa6 RBX: ff110000166f6200 RCX: 1ff4000000092eed
[   90.418417][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166f62bc
[   90.418635][   T68] RBP: ff1100001400c000 R08: 1fe2200002cdec59 R09: ff110000090e2ed0
[   90.418991][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   90.419302][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.419605][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   90.419939][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.420212][   T68] CR2: 00007f206d594574 CR3: 000000004814d001 CR4: 0000000000771ef0
[   90.420518][   T68] PKRU: 55555554
[   90.420745][   T68] Call Trace:
[   90.420978][   T68]  <TASK>
[   90.421157][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.421511][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.421818][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.422072][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.422323][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.422570][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.422843][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.423076][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.423268][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.423428][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.423595][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.423782][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.423948][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.424119][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.424284][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.424457][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.424626][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.424811][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.424979][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.425145][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.425310][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.425476][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.425639][   T68]  kthread (kernel/kthread.c:436)
[   90.425795][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.425987][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.426154][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.426318][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.426510][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.426686][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.426859][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.429448][   T68] ------------[ cut here ]------------
| [   90.429611][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   90.430625][   T68] Modules linked in: ipvtap ipvlan
| [   90.431265][   T68] Tainted: [W]=WARN
[   90.431476][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.431742][   T68] Workqueue: netns cleanup_net
[   90.431961][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.432179][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.432639][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.432857][   T68] RAX: 00000000ffffffa6 RBX: ff1100001a9f2ac0 RCX: 1ff4000000092eed
[   90.433100][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001a9f2b7c
[   90.433349][   T68] RBP: ff11000013f94000 R08: 1fe220000353e571 R09: ff110000090e2ed0
[   90.433571][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   90.433818][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.434041][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   90.434291][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.434481][   T68] CR2: 00007f206d594574 CR3: 000000004814d001 CR4: 0000000000771ef0
[   90.434723][   T68] PKRU: 55555554
[   90.434885][   T68] Call Trace:
[   90.435047][   T68]  <TASK>
[   90.435154][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.435362][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.435587][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.435770][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.435935][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.436097][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.436260][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.436424][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.436620][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.436805][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.436975][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.437140][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.437302][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.437465][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.437628][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.437812][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.437979][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.438141][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.438313][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.438479][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.438643][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.438830][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.438993][   T68]  kthread (kernel/kthread.c:436)
[   90.439140][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.439330][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.439494][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.439672][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.439871][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.440032][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.440198][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.442876][   T68] ------------[ cut here ]------------
| [   90.443036][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   90.443312][   T68] Modules linked in: ipvtap ipvlan
| [   90.444031][   T68] Tainted: [W]=WARN
[   90.444251][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.444486][   T68] Workqueue: netns cleanup_net
[   90.444722][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.444965][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.445476][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.445745][   T68] RAX: 00000000ffffffa6 RBX: ff11000012abb540 RCX: 1ff4000000092eed
[   90.446012][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012abb5fc
[   90.446287][   T68] RBP: ff11000013dc1000 R08: 1fe22000025576c1 R09: ff110000090e2ed0
[   90.446557][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   90.446853][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.447128][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   90.447424][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.447676][   T68] CR2: 00007f206d594574 CR3: 000000004814d001 CR4: 0000000000771ef0
[   90.447953][   T68] PKRU: 55555554
[   90.448132][   T68] Call Trace:
[   90.448313][   T68]  <TASK>
[   90.448465][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.448724][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.448962][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.449173][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.449384][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.449596][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.449830][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.450038][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.450255][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.450465][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.450692][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.450911][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.451124][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.451336][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.451547][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.451784][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.452017][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.452236][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.452457][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.452688][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.452922][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.453196][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.453402][   T68]  kthread (kernel/kthread.c:436)
[   90.453534][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.453750][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.453918][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.454084][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.454277][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.454457][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.454626][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.457065][   T68] ------------[ cut here ]------------
| [   90.457235][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   90.457512][   T68] Modules linked in: ipvtap ipvlan
| [   90.458810][   T68] Tainted: [W]=WARN
[   90.458990][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.459230][   T68] Workqueue: netns cleanup_net
[   90.459443][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.459712][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.460233][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.460473][   T68] RAX: 00000000ffffffa6 RBX: ff11000012aba3c0 RCX: 1ff4000000092eed
[   90.460756][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012aba47c
[   90.461021][   T68] RBP: ff1100000a354000 R08: 1fe2200002557491 R09: ff110000090e2ed0
[   90.461313][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   90.461585][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.461874][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   90.462168][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.462418][   T68] CR2: 00007f206d594574 CR3: 000000004814d001 CR4: 0000000000771ef0
[   90.462710][   T68] PKRU: 55555554
[   90.462889][   T68] Call Trace:
[   90.463085][   T68]  <TASK>
[   90.463238][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.463478][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.463735][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.463951][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.464161][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.464383][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.464593][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.464825][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.465040][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.465250][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.465464][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.465690][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.465905][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.466115][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.466324][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.466570][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.466853][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.467124][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.467384][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.467641][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.467919][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.468205][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.468457][   T68]  kthread (kernel/kthread.c:436)
[   90.468678][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.468878][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.469047][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.469215][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.469407][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.469572][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.469755][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.472160][   T68] ------------[ cut here ]------------
| [   90.472319][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   90.472591][   T68] Modules linked in: ipvtap ipvlan
| [   90.473605][   T68] Tainted: [W]=WARN
[   90.473801][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.474044][   T68] Workqueue: netns cleanup_net
[   90.474259][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.474505][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.475035][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.475273][   T68] RAX: 00000000ffffffa6 RBX: ff11000012aba740 RCX: 1ff4000000092eed
[   90.475536][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012aba7fc
[   90.475823][   T68] RBP: ff1100000e8c4000 R08: 1fe2200002557501 R09: ff110000090e2ed0
[   90.476088][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   90.476351][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.476616][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   90.476940][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.477180][   T68] CR2: 00007f206d594574 CR3: 000000004814d001 CR4: 0000000000771ef0
[   90.477447][   T68] PKRU: 55555554
[   90.477624][   T68] Call Trace:
[   90.477824][   T68]  <TASK>
[   90.477979][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.478222][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.478460][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.478682][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.478908][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.479173][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.479435][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.479715][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.479972][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.480146][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.480314][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.480484][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.480652][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.480835][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.481000][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.481175][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.481345][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.481511][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.481692][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.481867][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.482030][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.482197][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.482363][   T68]  kthread (kernel/kthread.c:436)
[   90.482501][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.482709][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.482879][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.483044][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.483234][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.483398][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.483563][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.512615][   T68] ------------[ cut here ]------------
| [   90.512813][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   90.513122][   T68] Modules linked in: ipvtap ipvlan
| [   90.513685][   T68] Tainted: [W]=WARN
[   90.513834][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.514034][   T68] Workqueue: netns cleanup_net
[   90.514239][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.514472][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.515012][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   90.515215][   T68] RAX: 00000000ffffffa6 RBX: ff11000012978900 RCX: 1ff4000000092eaf
[   90.515444][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000129789bc
[   90.515707][   T68] RBP: ff11000013fa4000 R08: 1fe220000252f139 R09: ff110000090e2ed0
[   90.515971][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   90.516200][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   90.516432][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   90.516709][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.516960][   T68] CR2: 00007f206d594574 CR3: 000000004814d001 CR4: 0000000000771ef0
[   90.517193][   T68] PKRU: 55555554
[   90.517340][   T68] Call Trace:
[   90.517477][   T68]  <TASK>
[   90.517613][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   90.517822][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   90.517967][   T68]  netif_close_many (net/core/dev.c:1804)
[   90.518159][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.518334][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.518509][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.518705][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   90.518875][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   90.519076][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   90.519276][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.519455][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.519645][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   90.519864][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.520076][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.520251][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   90.520424][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   90.520632][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.520828][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   90.521001][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   90.521175][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.521343][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.521517][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.521709][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.521878][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.522050][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.522219][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.522404][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.522579][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.522780][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.522955][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.523127][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.523295][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.523467][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.523637][   T68]  kthread (kernel/kthread.c:436)
[   90.523798][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.523997][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.524167][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.524359][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.524584][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.524782][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.524954][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.528038][   T68] ------------[ cut here ]------------
| [   90.528213][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   90.528519][   T68] Modules linked in: ipvtap ipvlan
| [   90.530405][   T68] Tainted: [W]=WARN
[   90.530644][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.530893][   T68] Workqueue: netns cleanup_net
[   90.531064][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.531265][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.531799][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   90.531998][   T68] RAX: 00000000ffffffa6 RBX: ff11000018db58c0 RCX: 1ff4000000092ed5
[   90.532222][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000018db597c
[   90.532448][   T68] RBP: ff11000013fa4000 R08: 1fe22000031b6b31 R09: ff110000090e2ed0
[   90.532685][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   90.532931][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.533161][   T68] FS:  0000000000000000(0000) GS:ff110000c33c7000(0000) knlGS:0000000000000000
[   90.533417][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.533611][   T68] CR2: 00007f206d594574 CR3: 000000004814d001 CR4: 0000000000771ef0
[   90.533860][   T68] PKRU: 55555554
[   90.534028][   T68] Call Trace:
[   90.534205][   T68]  <TASK>
[   90.534320][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.534568][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.534785][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.534966][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   90.535147][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   90.535325][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.535516][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   90.535706][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   90.535877][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.536050][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.536218][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.536411][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.536584][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.536770][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.536935][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.537103][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.537274][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.538088][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.538285][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.538455][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.538623][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.538826][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.538995][   T68]  kthread (kernel/kthread.c:436)
[   90.539134][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.539336][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.539507][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.539690][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.539916][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.540092][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.540259][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.576810][   T68] ------------[ cut here ]------------
| [   90.576955][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   90.577192][   T68] Modules linked in: ipvtap ipvlan
| [   90.577588][   T68] Tainted: [W]=WARN
[   90.577683][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.577831][   T68] Workqueue: netns cleanup_net
[   90.577951][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.578105][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.578572][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.578739][   T68] RAX: 00000000ffffffa6 RBX: ff110000166cee40 RCX: 1ff4000000092eed
[   90.578914][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000166ceefc
[   90.579087][   T68] RBP: ff1100001519c000 R08: 1fe2200002cd9de1 R09: ff110000090e2ed0
[   90.579260][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   90.579436][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.579635][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   90.579856][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.580001][   T68] CR2: 00007f8c19b970a0 CR3: 000000004814d002 CR4: 0000000000771ef0
[   90.580174][   T68] PKRU: 55555554
[   90.580259][   T68] Call Trace:
[   90.580346][   T68]  <TASK>
[   90.580407][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.580554][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.580707][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.580826][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.580954][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.581070][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.581188][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.581310][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.581426][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.581570][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.581696][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.581818][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.581942][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.582059][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.582179][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.582301][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.582425][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.582548][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.582679][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.582803][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.582919][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.583037][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.583153][   T68]  kthread (kernel/kthread.c:436)
[   90.583262][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.583407][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.583530][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.583683][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.583864][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.583985][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.584102][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.586328][   T68] ------------[ cut here ]------------
| [   90.586453][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   90.586688][   T68] Modules linked in: ipvtap ipvlan
| [   90.587077][   T68] Tainted: [W]=WARN
[   90.587165][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.587313][   T68] Workqueue: netns cleanup_net
[   90.587433][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.587584][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.588018][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.588166][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d56de00 RCX: 1ff4000000092eed
[   90.588362][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d56debc
[   90.588537][   T68] RBP: ff11000015179000 R08: 1fe2200001aadbd9 R09: ff110000090e2ed0
[   90.588723][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   90.588897][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.589216][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   90.589417][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.589559][   T68] CR2: 00007f8c19b970a0 CR3: 000000004814d002 CR4: 0000000000771ef0
[   90.589757][   T68] PKRU: 55555554
[   90.589870][   T68] Call Trace:
[   90.589965][   T68]  <TASK>
[   90.590024][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.590172][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.590317][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.590434][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.590553][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.590696][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.590816][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.590933][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.591051][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.591166][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.591284][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.591403][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.591523][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.591664][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.591786][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.591902][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.592023][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.592140][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.592263][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.592380][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.592499][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.592623][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.592750][   T68]  kthread (kernel/kthread.c:436)
[   90.592862][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.593032][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.593161][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.593278][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.593422][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.593537][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.593664][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.596037][   T68] ------------[ cut here ]------------
| [   90.596159][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   90.596420][   T68] Modules linked in: ipvtap ipvlan
| [   90.596833][   T68] Tainted: [W]=WARN
[   90.596921][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.597083][   T68] Workqueue: netns cleanup_net
[   90.597208][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.597393][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.597828][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.597975][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d56c900 RCX: 1ff4000000092eed
[   90.598176][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d56c9bc
[   90.598353][   T68] RBP: ff1100000f091000 R08: 1fe2200001aad939 R09: ff110000090e2ed0
[   90.598527][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   90.598751][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.598926][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   90.599128][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.599272][   T68] CR2: 00007f8c19b970a0 CR3: 000000004814d002 CR4: 0000000000771ef0
[   90.599446][   T68] PKRU: 55555554
[   90.599551][   T68] Call Trace:
[   90.599642][   T68]  <TASK>
[   90.599738][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.599890][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.600033][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.600150][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.600275][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.600391][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.600508][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.600649][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.600784][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.600904][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.601026][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.601148][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.601266][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.601383][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.601499][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.601617][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.601761][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.601885][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.602006][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.602122][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.602239][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.602355][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.602471][   T68]  kthread (kernel/kthread.c:436)
[   90.602559][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.602726][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.602866][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.602982][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.603132][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.603249][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.603370][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.605351][   T68] ------------[ cut here ]------------
| [   90.605470][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   90.605707][   T68] Modules linked in: ipvtap ipvlan
| [   90.606085][   T68] Tainted: [W]=WARN
[   90.606171][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.606313][   T68] Workqueue: netns cleanup_net
[   90.606432][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.606599][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.607021][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.607762][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d56cc80 RCX: 1ff4000000092eed
[   90.607938][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d56cd3c
[   90.608298][   T68] RBP: ff11000012b44000 R08: 1fe2200001aad9a9 R09: ff110000090e2ed0
[   90.608468][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   90.608640][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.608823][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   90.609040][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.609186][   T68] CR2: 00007f8c19b970a0 CR3: 000000004814d002 CR4: 0000000000771ef0
[   90.609360][   T68] PKRU: 55555554
[   90.609451][   T68] Call Trace:
[   90.609538][   T68]  <TASK>
[   90.609598][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.609757][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.609902][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.610021][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.610136][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.610250][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.610365][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.610482][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.610599][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.610724][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.610841][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.610956][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.611070][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.611185][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.611302][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.611419][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.611537][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.611656][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.611781][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.611896][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.612011][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.612147][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.612271][   T68]  kthread (kernel/kthread.c:436)
[   90.612358][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.612514][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.612658][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.612788][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.612932][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.613047][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.613165][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.615147][   T68] ------------[ cut here ]------------
| [   90.615294][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   90.615520][   T68] Modules linked in: ipvtap ipvlan
| [   90.615916][   T68] Tainted: [W]=WARN
[   90.616007][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.616153][   T68] Workqueue: netns cleanup_net
[   90.616272][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.616421][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.616851][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.616998][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d56d000 RCX: 1ff4000000092eed
[   90.617174][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d56d0bc
[   90.618202][   T68] RBP: ff11000015154000 R08: 1fe2200001aada19 R09: ff110000090e2ed0
[   90.618372][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   90.618551][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.618742][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   90.618981][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.619128][   T68] CR2: 00007f8c19b970a0 CR3: 000000004814d002 CR4: 0000000000771ef0
[   90.619311][   T68] PKRU: 55555554
[   90.619401][   T68] Call Trace:
[   90.619493][   T68]  <TASK>
[   90.619553][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.619715][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.619857][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.619973][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.620091][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.620206][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.620321][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.620725][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.620859][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.620981][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.621102][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.621219][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.621334][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.621449][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.621585][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.621717][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.621837][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.621953][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.622076][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.622198][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.622313][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.622430][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.622550][   T68]  kthread (kernel/kthread.c:436)
[   90.622637][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.622792][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.622908][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.623024][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.623166][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.623281][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.623477][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.644895][   T68] ------------[ cut here ]------------
| [   90.645036][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   90.645293][   T68] Modules linked in: ipvtap ipvlan
| [   90.646172][   T68] Tainted: [W]=WARN
[   90.646265][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.646470][   T68] Workqueue: netns cleanup_net
[   90.646597][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.646817][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.647248][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   90.647400][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d56d1c0 RCX: 1ff4000000092eaf
[   90.647583][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d56d27c
[   90.647821][   T68] RBP: ff1100000f801000 R08: 1fe2200001aada51 R09: ff110000090e2ed0
[   90.648001][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   90.648198][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   90.648392][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   90.648607][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.648819][   T68] CR2: 00007f8c19b970a0 CR3: 000000004814d002 CR4: 0000000000771ef0
[   90.649001][   T68] PKRU: 55555554
[   90.649094][   T68] Call Trace:
[   90.649185][   T68]  <TASK>
[   90.649249][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   90.649376][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   90.649470][   T68]  netif_close_many (net/core/dev.c:1804)
[   90.649592][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.649771][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.649896][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.650018][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   90.650141][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   90.650296][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   90.650453][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.650574][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.650753][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   90.650875][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.651029][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.651154][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   90.651279][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   90.651402][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.651524][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   90.651647][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   90.651834][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.651956][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.652081][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.652207][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.652360][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.652485][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.652608][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.652787][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.652913][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.653034][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.653160][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.653294][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.653439][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.653565][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.653744][   T68]  kthread (kernel/kthread.c:436)
[   90.653836][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.653986][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.654106][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.654250][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.654400][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.654521][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.654642][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.657629][   T68] ------------[ cut here ]------------
| [   90.658181][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   90.658418][   T68] Modules linked in: ipvtap ipvlan
| [   90.658860][   T68] Tainted: [W]=WARN
[   90.658948][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.659094][   T68] Workqueue: netns cleanup_net
[   90.659282][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.659434][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.659911][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   90.660060][   T68] RAX: 00000000ffffffa6 RBX: ff1100001654a200 RCX: 1ff4000000092ed5
[   90.660261][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001654a2bc
[   90.660454][   T68] RBP: ff1100000f801000 R08: 1fe2200002ca9459 R09: ff110000090e2ed0
[   90.660630][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   90.660856][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.661046][   T68] FS:  0000000000000000(0000) GS:ff110000c3447000(0000) knlGS:0000000000000000
[   90.661252][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.661401][   T68] CR2: 00005559e9c93d5c CR3: 0000000009dc3005 CR4: 0000000000771ef0
[   90.661582][   T68] PKRU: 55555554
[   90.661723][   T68] Call Trace:
[   90.661811][   T68]  <TASK>
[   90.661874][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.662024][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.662173][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.662296][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   90.662416][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   90.662534][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.662928][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   90.663047][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   90.663166][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.663282][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.663405][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.663523][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.663711][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.663847][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.663963][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.664080][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.664201][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.664321][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.664445][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.664570][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.664741][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.664860][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.664977][   T68]  kthread (kernel/kthread.c:436)
[   90.665066][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.665211][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.665330][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.665447][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.665593][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.665764][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.665882][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.700761][   T68] ------------[ cut here ]------------
| [   90.700903][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   90.701161][   T68] Modules linked in: ipvtap ipvlan
| [   90.701541][   T68] Tainted: [W]=WARN
[   90.701629][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.701810][   T68] Workqueue: netns cleanup_net
[   90.701932][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.702085][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.702499][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.702658][   T68] RAX: 00000000ffffffa6 RBX: ff1100001654ba80 RCX: 1ff4000000092eed
[   90.702833][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001654bb3c
[   90.703004][   T68] RBP: ff11000015421000 R08: 1fe2200002ca9769 R09: ff110000090e2ed0
[   90.703181][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   90.703353][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.703526][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   90.703749][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.703894][   T68] CR2: 00007f8c19b970a0 CR3: 000000004814d002 CR4: 0000000000771ef0
[   90.704073][   T68] PKRU: 55555554
[   90.704161][   T68] Call Trace:
[   90.704248][   T68]  <TASK>
[   90.704309][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.704457][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.704600][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.704727][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.704846][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.704961][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.705077][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.705195][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.705314][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.705430][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.705549][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.705676][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.705796][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.705911][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.706031][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.706150][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.706269][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.706385][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.706526][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.706656][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.706777][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.706893][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.707006][   T68]  kthread (kernel/kthread.c:436)
[   90.707093][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.707235][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.707350][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.707466][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.707610][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.707746][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.707861][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.710044][   T68] ------------[ cut here ]------------
| [   90.710178][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   90.710407][   T68] Modules linked in: ipvtap ipvlan
| [   90.710796][   T68] Tainted: [W]=WARN
[   90.710882][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.711050][   T68] Workqueue: netns cleanup_net
[   90.711176][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.711328][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.711752][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.711897][   T68] RAX: 00000000ffffffa6 RBX: ff1100001ac98e40 RCX: 1ff4000000092eed
[   90.712094][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001ac98efc
[   90.712265][   T68] RBP: ff110000153f4000 R08: 1fe22000035931e1 R09: ff110000090e2ed0
[   90.712436][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   90.712608][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.712792][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   90.713006][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.713155][   T68] CR2: 00007f8c19b970a0 CR3: 000000004814d002 CR4: 0000000000771ef0
[   90.713329][   T68] PKRU: 55555554
[   90.713415][   T68] Call Trace:
[   90.713501][   T68]  <TASK>
[   90.713561][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.713721][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.713872][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.713991][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.714109][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.714224][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.714342][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.714463][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.714588][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.714717][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.714837][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.714958][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.715072][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.715188][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.715303][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.715427][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.715552][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.715677][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.715806][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.715923][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.716039][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.716156][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.716270][   T68]  kthread (kernel/kthread.c:436)
[   90.716363][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.716515][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.716634][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.716762][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.716907][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.717025][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.717145][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.719283][   T68] ------------[ cut here ]------------
| [   90.719432][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   90.719664][   T68] Modules linked in: ipvtap ipvlan
| [   90.720073][   T68] Tainted: [W]=WARN
[   90.720162][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.720308][   T68] Workqueue: netns cleanup_net
[   90.720428][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.720581][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.721017][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.721161][   T68] RAX: 00000000ffffffa6 RBX: ff110000146d2040 RCX: 1ff4000000092eed
[   90.721351][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000146d20fc
[   90.721522][   T68] RBP: ff11000014321000 R08: 1fe22000028da421 R09: ff110000090e2ed0
[   90.721707][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   90.721902][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.722081][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   90.722282][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.722427][   T68] CR2: 00007f8c19b970a0 CR3: 000000004814d002 CR4: 0000000000771ef0
[   90.722598][   T68] PKRU: 55555554
[   90.722692][   T68] Call Trace:
[   90.722783][   T68]  <TASK>
[   90.722843][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.722994][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.723148][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.723264][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.723380][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.723496][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.723610][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.723747][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.723864][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.723978][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.724097][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.724213][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.724327][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.724445][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.724560][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.724685][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.724816][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.724934][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.725060][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.725176][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.725292][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.725408][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.725524][   T68]  kthread (kernel/kthread.c:436)
[   90.725612][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.725766][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.725882][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.726000][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.726145][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.726264][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.726381][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.728385][   T68] ------------[ cut here ]------------
| [   90.728502][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   90.728741][   T68] Modules linked in: ipvtap ipvlan
| [   90.729119][   T68] Tainted: [W]=WARN
[   90.729208][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.729353][   T68] Workqueue: netns cleanup_net
[   90.729472][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.729622][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.730043][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.730189][   T68] RAX: 00000000ffffffa6 RBX: ff110000146d2580 RCX: 1ff4000000092eed
[   90.730362][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000146d263c
[   90.730534][   T68] RBP: ff11000014304000 R08: 1fe22000028da4c9 R09: ff110000090e2ed0
[   90.730717][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   90.730892][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.731065][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   90.731285][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.731434][   T68] CR2: 00007f8c19b970a0 CR3: 000000004814d002 CR4: 0000000000771ef0
[   90.731611][   T68] PKRU: 55555554
[   90.731708][   T68] Call Trace:
[   90.731798][   T68]  <TASK>
[   90.731860][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.732020][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.732172][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.732288][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.732408][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.732524][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.732642][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.732772][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.732891][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.733006][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.733145][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.733265][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.733385][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.733507][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.733626][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.733755][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.733876][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.733992][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.734112][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.734229][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.734343][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.734462][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.734579][   T68]  kthread (kernel/kthread.c:436)
[   90.734671][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.734818][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.734937][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.735053][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.735196][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.735313][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.735429][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.737361][   T68] ------------[ cut here ]------------
| [   90.737483][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   90.737716][   T68] Modules linked in: ipvtap ipvlan
| [   90.738096][   T68] Tainted: [W]=WARN
[   90.738183][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.738328][   T68] Workqueue: netns cleanup_net
[   90.738448][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.738598][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.739017][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   90.739164][   T68] RAX: 00000000ffffffa6 RBX: ff110000146d3e00 RCX: 1ff4000000092eed
[   90.739335][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000146d3ebc
[   90.739507][   T68] RBP: ff110000153d1000 R08: 1fe22000028da7d9 R09: ff110000090e2ed0
[   90.739686][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   90.739866][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.740038][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   90.740239][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.740384][   T68] CR2: 00007f8c19b970a0 CR3: 000000004814d002 CR4: 0000000000771ef0
[   90.740559][   T68] PKRU: 55555554
[   90.740647][   T68] Call Trace:
[   90.740742][   T68]  <TASK>
[   90.740802][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.740955][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.741099][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   90.741214][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   90.741329][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.741443][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   90.741562][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.741684][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   90.741807][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.741921][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.742039][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.742156][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.742271][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.742462][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.742578][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.742706][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.742827][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.743011][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.743139][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.743258][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.743373][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.743564][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.743691][   T68]  kthread (kernel/kthread.c:436)
[   90.743827][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.743971][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.744160][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.744277][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.744422][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.744539][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.744738][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.778931][   T68] ------------[ cut here ]------------
| [   90.779069][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   90.779324][   T68] Modules linked in: ipvtap ipvlan
| [   90.779744][   T68] Tainted: [W]=WARN
[   90.779838][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.779992][   T68] Workqueue: netns cleanup_net
[   90.780122][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.780286][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.780734][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   90.780890][   T68] RAX: 00000000ffffffa6 RBX: ff110000146d23c0 RCX: 1ff4000000092eaf
[   90.781076][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000146d247c
[   90.781260][   T68] RBP: ff1100000e8b4000 R08: 1fe22000028da491 R09: ff110000090e2ed0
[   90.781442][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   90.781623][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   90.781824][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   90.782040][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.782193][   T68] CR2: 00007f8c19b970a0 CR3: 000000004814d002 CR4: 0000000000771ef0
[   90.782378][   T68] PKRU: 55555554
[   90.782471][   T68] Call Trace:
[   90.782573][   T68]  <TASK>
[   90.782637][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   90.782771][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   90.782865][   T68]  netif_close_many (net/core/dev.c:1804)
[   90.782987][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.783110][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.783232][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.783355][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   90.783483][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   90.783637][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   90.783817][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   90.783940][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   90.784063][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   90.784186][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.784342][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.784468][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   90.784594][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   90.784732][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.784854][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   90.784977][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   90.785101][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.785223][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.785348][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.785472][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.785594][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.785726][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.785848][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.785972][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.786099][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.786221][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.786348][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.786474][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.786605][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.786737][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.786858][   T68]  kthread (kernel/kthread.c:436)
[   90.786950][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.787103][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.787226][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.787350][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.787503][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.787626][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.787758][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.790200][   T68] ------------[ cut here ]------------
| [   90.790324][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   90.790553][   T68] Modules linked in: ipvtap ipvlan
| [   90.791379][   T68] Tainted: [W]=WARN
[   90.791469][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.791617][   T68] Workqueue: netns cleanup_net
[   90.791750][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   90.791910][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   90.792336][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   90.792486][   T68] RAX: 00000000ffffffa6 RBX: ff11000012979e00 RCX: 1ff4000000092ed5
[   90.792674][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012979ebc
[   90.792854][   T68] RBP: ff1100000e8b4000 R08: 1fe220000252f3d9 R09: ff110000090e2ed0
[   90.793029][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   90.793204][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   90.793381][   T68] FS:  0000000000000000(0000) GS:ff110000c32c7000(0000) knlGS:0000000000000000
[   90.793585][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.793744][   T68] CR2: 00007f8c19b970a0 CR3: 000000004814d002 CR4: 0000000000771ef0
[   90.793924][   T68] PKRU: 55555554
[   90.794012][   T68] Call Trace:
[   90.794100][   T68]  <TASK>
[   90.794162][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   90.794313][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   90.794465][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.794585][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   90.794713][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   90.794836][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   90.794955][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   90.795079][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   90.795202][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   90.795319][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   90.795438][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   90.795556][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   90.795678][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   90.795805][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   90.795922][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   90.796042][   T68]  process_one_work (kernel/workqueue.c:3314)
[   90.796164][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   90.796282][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   90.796404][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   90.796527][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.796645][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   90.796773][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   90.796891][   T68]  kthread (kernel/kthread.c:436)
[   90.796982][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   90.797130][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   90.797247][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   90.797366][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   90.797514][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   90.797632][   T68]  ? kthread_affine_node (kernel/kthread.c:378)


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:rtnl_newlink_create
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:ipvlan_device_event
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:rtnl_dellink:rtnetlink_rcv_msg:netlink_rcv_skb
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:sit_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:ipvlan_device_event:notifier_call_chain:unregister_netdevice_many_notify
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:veth_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:default_device_exit_batch
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:ops_undo_list:cleanup_net:process_one_work
rtmsg_ifinfo_build_skb:rtnetlink_event:notifier_call_chain:__netdev_upper_dev_link:netdev_upper_dev_link
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:rtnl_dellink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_state_change:__linkwatch_run_queue:linkwatch_event
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:netif_change_flags:rtnl_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:ip6_tnl_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:vti6_init_net
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:default_device_exit_batch:ops_undo_list:cleanup_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:__ip_tunnel_create:ip_tunnel_init_net