======================================
| xx__-> [   14.951122][  T202] ------------[ cut here ]------------
| [   14.951369][  T202] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/202
| [   14.951617][  T202] Modules linked in:
| [   14.952128][  T202] Tainted: [W]=WARN
[   14.952234][  T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.952405][  T202] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.952586][  T202] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.953106][  T202] RSP: 0018:ffa0000000907a80 EFLAGS: 00010286
[   14.953291][  T202] RAX: 00000000ffffffa6 RBX: ff1100000d3b98c0 RCX: 1ff4000000120f16
[   14.953493][  T202] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d3b997c
[   14.953693][  T202] RBP: ff1100000a02c000 R08: 1fe2200001a77331 R09: ff1100000eb60b80
[   14.953901][  T202] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   14.954257][  T202] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a02c000
[   14.954458][  T202] FS:  00007f0148498840(0000) GS:ff110000d5ac7000(0000) knlGS:0000000000000000
[   14.954696][  T202] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.954892][  T202] CR2: 0000000000479648 CR3: 000000000f7e1003 CR4: 0000000000771ef0
[   14.955120][  T202] PKRU: 55555554
[   14.955229][  T202] Call Trace:
[   14.955330][  T202]  <TASK>
[   14.955402][  T202]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.955540][  T202]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.955701][  T202]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.955834][  T202]  register_netdevice (net/core/dev.c:11488)
[   14.955994][  T202]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.956233][  T202]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.956392][  T202]  register_netdev (net/core/dev.c:11552)
[   14.956556][  T202]  loopback_net_init (drivers/net/loopback.c:218)
[   14.956722][  T202]  ops_init (net/core/net_namespace.c:137)
[   14.956850][  T202]  setup_net (net/core/net_namespace.c:446)
[   14.956972][  T202]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.957132][  T202]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.957296][  T202]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.957451][  T202]  copy_net_ns (net/core/net_namespace.c:579)
[   14.957616][  T202]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.957792][  T202]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.957949][  T202]  ksys_unshare (kernel/fork.c:3243)
[   14.958116][  T202]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.958308][  T202]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.958457][  T202]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.958609][  T202]  ? __ia32_sys_open (fs/open.c:1374)
[   14.958746][  T202]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.958896][  T202]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.959200][  T202]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.959345][  T202]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.959482][  T202]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.959627][  T202]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.959842][  T202] RIP: 0033:0x7f014875abcb
[   14.960007][  T202] 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
[   14.960570][  T202] RSP: 002b:00007ffc68aa0068 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   14.960832][  T202] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f014875abcb
[   14.961080][  T202] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.961328][  T202] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[   14.961552][  T202] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc68aa2290
[   14.961799][  T202] R13: 0000000000000001 R14: 00007f01484986f8 R15: 00007ffc68aa385d
| [   14.968308][  T202] ------------[ cut here ]------------
| [   14.968476][  T202] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/202
| [   14.968767][  T202] Modules linked in:
| [   14.969218][  T202] Tainted: [W]=WARN
[   14.969333][  T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.969565][  T202] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.969774][  T202] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.970468][  T202] RSP: 0018:ffa0000000907918 EFLAGS: 00010286
[   14.970677][  T202] RAX: 00000000ffffffa6 RBX: ff110000057ce200 RCX: 1ff4000000120ee9
[   14.971043][  T202] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000057ce2bc
[   14.971297][  T202] RBP: ff11000005f19000 R08: 1fe2200000af9c59 R09: ff1100000eb60b80
[   14.971532][  T202] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   14.971880][  T202] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005f19000
[   14.972146][  T202] FS:  00007f0148498840(0000) GS:ff110000d5ac7000(0000) knlGS:0000000000000000
[   14.972429][  T202] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.972750][  T202] CR2: 0000000000479648 CR3: 000000000f7e1003 CR4: 0000000000771ef0
[   14.972998][  T202] PKRU: 55555554
[   14.973118][  T202] Call Trace:
[   14.973241][  T202]  <TASK>
[   14.973439][  T202]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.973603][  T202]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.973775][  T202]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.973891][  T202]  register_netdevice (net/core/dev.c:11488)
[   14.974172][  T202]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.974368][  T202]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.974521][  T202]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   14.974688][  T202]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   14.975272][  T202]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   14.975421][  T202]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   14.975577][  T202]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   14.975730][  T202]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   14.976012][  T202]  ops_init (net/core/net_namespace.c:137)
[   14.976170][  T202]  setup_net (net/core/net_namespace.c:446)
[   14.976284][  T202]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.976448][  T202]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.976604][  T202]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.976883][  T202]  copy_net_ns (net/core/net_namespace.c:579)
[   14.977044][  T202]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.977206][  T202]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.977366][  T202]  ksys_unshare (kernel/fork.c:3243)
[   14.977649][  T202]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.977821][  T202]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.977988][  T202]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.978147][  T202]  ? __ia32_sys_open (fs/open.c:1374)
[   14.978430][  T202]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.978580][  T202]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.978747][  T202]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.979033][  T202]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.979192][  T202]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.979354][  T202]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.979565][  T202] RIP: 0033:0x7f014875abcb
[   14.979864][  T202] 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
[   14.980440][  T202] RSP: 002b:00007ffc68aa0068 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   14.980802][  T202] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f014875abcb
[   14.981135][  T202] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   14.981516][  T202] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[   14.981746][  T202] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc68aa2290
[   14.981994][  T202] R13: 0000000000000001 R14: 00007f01484986f8 R15: 00007ffc68aa385d
| [   14.987880][  T202] ------------[ cut here ]------------
| [   14.988071][  T202] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/202
| [   14.988463][  T202] Modules linked in:
| [   14.989059][  T202] Tainted: [W]=WARN
[   14.989177][  T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.989353][  T202] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.989547][  T202] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.990251][  T202] RSP: 0018:ffa00000009078f8 EFLAGS: 00010286
[   14.990487][  T202] RAX: 00000000ffffffa6 RBX: ff110000057ce040 RCX: 1ff4000000120ee5
[   14.990851][  T202] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000057ce0fc
[   14.991106][  T202] RBP: ff110000020bc000 R08: 1fe2200000af9c21 R09: ff1100000eb60b80
[   14.991456][  T202] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   14.991698][  T202] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000020bc000
[   14.991955][  T202] FS:  00007f0148498840(0000) GS:ff110000d5ac7000(0000) knlGS:0000000000000000
[   14.992351][  T202] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.992557][  T202] CR2: 0000000000479648 CR3: 000000000f7e1003 CR4: 0000000000771ef0
[   14.992921][  T202] PKRU: 55555554
[   14.993049][  T202] Call Trace:
[   14.993172][  T202]  <TASK>
[   14.993256][  T202]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.993422][  T202]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.993597][  T202]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.993848][  T202]  register_netdevice (net/core/dev.c:11488)
[   14.994008][  T202]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.994206][  T202]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.994364][  T202]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   14.994652][  T202]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   14.994813][  T202]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   14.994984][  T202]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   14.995149][  T202]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   14.995431][  T202]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   14.995597][  T202]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   14.995741][  T202]  vti_init_net (net/ipv4/ip_vti.c:517)
[   14.995980][  T202]  ops_init (net/core/net_namespace.c:137)
[   14.996091][  T202]  setup_net (net/core/net_namespace.c:446)
[   14.996208][  T202]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.996343][  T202]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.996490][  T202]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.996761][  T202]  copy_net_ns (net/core/net_namespace.c:579)
[   14.996916][  T202]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.997091][  T202]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.997255][  T202]  ksys_unshare (kernel/fork.c:3243)
[   14.997625][  T202]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.997790][  T202]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.997949][  T202]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   14.998100][  T202]  ? __ia32_sys_open (fs/open.c:1374)
[   14.998370][  T202]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.998818][  T202]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.998961][  T202]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.999101][  T202]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.999335][  T202]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.999473][  T202]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.999642][  T202] RIP: 0033:0x7f014875abcb
[   14.999791][  T202] 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
[   15.000386][  T202] RSP: 002b:00007ffc68aa0068 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.000682][  T202] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f014875abcb
[   15.000925][  T202] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.001145][  T202] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[   15.001449][  T202] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc68aa2290
[   15.001651][  T202] R13: 0000000000000001 R14: 00007f01484986f8 R15: 00007ffc68aa385d
| [   15.007181][  T202] ------------[ cut here ]------------
| [   15.007386][  T202] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/202
| [   15.007666][  T202] Modules linked in:
| [   15.008333][  T202] Tainted: [W]=WARN
[   15.008447][  T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.008651][  T202] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.008971][  T202] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.009645][  T202] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[   15.009848][  T202] RAX: 00000000ffffffa6 RBX: ff1100000d1d03c0 RCX: 1ff4000000120f15
[   15.010084][  T202] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1d047c
[   15.010421][  T202] RBP: ff11000009d31000 R08: 1fe2200001a3a091 R09: ff1100000eb60b80
[   15.010648][  T202] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.010892][  T202] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009d31000
[   15.011274][  T202] FS:  00007f0148498840(0000) GS:ff110000d5ac7000(0000) knlGS:0000000000000000
[   15.011559][  T202] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.011879][  T202] CR2: 0000000000479648 CR3: 000000000f7e1003 CR4: 0000000000771ef0
[   15.012147][  T202] PKRU: 55555554
[   15.012274][  T202] Call Trace:
[   15.012389][  T202]  <TASK>
[   15.012470][  T202]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.012743][  T202]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.012914][  T202]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.013043][  T202]  register_netdevice (net/core/dev.c:11488)
[   15.013202][  T202]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.013512][  T202]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.013670][  T202]  register_netdev (net/core/dev.c:11552)
[   15.013840][  T202]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   15.014005][  T202]  ops_init (net/core/net_namespace.c:137)
[   15.014239][  T202]  setup_net (net/core/net_namespace.c:446)
[   15.014353][  T202]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.014511][  T202]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.014669][  T202]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.014956][  T202]  copy_net_ns (net/core/net_namespace.c:579)
[   15.015129][  T202]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.015284][  T202]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.015447][  T202]  ksys_unshare (kernel/fork.c:3243)
[   15.015709][  T202]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.015878][  T202]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.016034][  T202]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.016189][  T202]  ? __ia32_sys_open (fs/open.c:1374)
[   15.016452][  T202]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.016618][  T202]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.016787][  T202]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.016950][  T202]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.017223][  T202]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.017380][  T202]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.017582][  T202] RIP: 0033:0x7f014875abcb
[   15.017750][  T202] 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
[   15.018442][  T202] RSP: 002b:00007ffc68aa0068 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.018801][  T202] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f014875abcb
[   15.019041][  T202] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.019269][  T202] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[   15.019625][  T202] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc68aa2290
[   15.019891][  T202] R13: 0000000000000001 R14: 00007f01484986f8 R15: 00007ffc68aa385d
| [   15.033146][  T202] ------------[ cut here ]------------
| [   15.033311][  T202] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/202
| [   15.033554][  T202] Modules linked in:
| [   15.034160][  T202] Tainted: [W]=WARN
[   15.034281][  T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.034598][  T202] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.034818][  T202] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.035419][  T202] RSP: 0018:ffa0000000907a68 EFLAGS: 00010286
[   15.035595][  T202] RAX: 00000000ffffffa6 RBX: ff1100000baf2c80 RCX: 1ff4000000120f13
[   15.035804][  T202] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000baf2d3c
[   15.036101][  T202] RBP: ff110000102e4000 R08: 1fe220000175e5a9 R09: ff1100000eb60b80
[   15.036305][  T202] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.036602][  T202] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000102e4000
[   15.036813][  T202] FS:  00007f0148498840(0000) GS:ff110000d5ac7000(0000) knlGS:0000000000000000
[   15.037056][  T202] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.037321][  T202] CR2: 0000000000479648 CR3: 000000000f7e1003 CR4: 0000000000771ef0
[   15.037528][  T202] PKRU: 55555554
[   15.037631][  T202] Call Trace:
[   15.037735][  T202]  <TASK>
[   15.037812][  T202]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.037949][  T202]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.038092][  T202]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.038195][  T202]  register_netdevice (net/core/dev.c:11488)
[   15.038335][  T202]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.038602][  T202]  register_netdev (net/core/dev.c:11552)
[   15.038740][  T202]  sit_init_net (net/ipv6/sit.c:1860)
[   15.038892][  T202]  ops_init (net/core/net_namespace.c:137)
[   15.038997][  T202]  setup_net (net/core/net_namespace.c:446)
[   15.039223][  T202]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.039374][  T202]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.039540][  T202]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.039693][  T202]  copy_net_ns (net/core/net_namespace.c:579)
[   15.039872][  T202]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.040034][  T202]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.040201][  T202]  ksys_unshare (kernel/fork.c:3243)
[   15.040348][  T202]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.040626][  T202]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.040798][  T202]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.040962][  T202]  ? __ia32_sys_open (fs/open.c:1374)
[   15.041142][  T202]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.041417][  T202]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.041582][  T202]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.041751][  T202]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.041924][  T202]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.042195][  T202]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.042394][  T202] RIP: 0033:0x7f014875abcb
[   15.042556][  T202] 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
[   15.043264][  T202] RSP: 002b:00007ffc68aa0068 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.043507][  T202] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f014875abcb
[   15.043865][  T202] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.044123][  T202] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[   15.044471][  T202] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc68aa2290
[   15.044701][  T202] R13: 0000000000000001 R14: 00007f01484986f8 R15: 00007ffc68aa385d
| [   15.051547][  T202] ------------[ cut here ]------------
| [   15.051736][  T202] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/202
| [   15.052802][  T202] Modules linked in:
| [   15.053294][  T202] Tainted: [W]=WARN
[   15.053434][  T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.053634][  T202] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.053926][  T202] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.054578][  T202] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[   15.054853][  T202] RAX: 00000000ffffffa6 RBX: ff1100000c696040 RCX: 1ff4000000120f15
[   15.055089][  T202] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c6960fc
[   15.055336][  T202] RBP: ff1100000eb4c000 R08: 1fe22000018d2c21 R09: ff1100000eb60b80
[   15.055582][  T202] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.055896][  T202] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000eb4c000
[   15.056137][  T202] FS:  00007f0148498840(0000) GS:ff110000d5ac7000(0000) knlGS:0000000000000000
[   15.056435][  T202] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.056636][  T202] CR2: 0000000000479648 CR3: 000000000f7e1003 CR4: 0000000000771ef0
[   15.056950][  T202] PKRU: 55555554
[   15.057076][  T202] Call Trace:
[   15.057194][  T202]  <TASK>
[   15.057273][  T202]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.057436][  T202]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.057607][  T202]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.057731][  T202]  register_netdevice (net/core/dev.c:11488)
[   15.057973][  T202]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.058175][  T202]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.058354][  T202]  register_netdev (net/core/dev.c:11552)
[   15.058516][  T202]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   15.058684][  T202]  ops_init (net/core/net_namespace.c:137)
[   15.058874][  T202]  setup_net (net/core/net_namespace.c:446)
[   15.058998][  T202]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.059163][  T202]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.059325][  T202]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.059486][  T202]  copy_net_ns (net/core/net_namespace.c:579)
[   15.059644][  T202]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.059884][  T202]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.060073][  T202]  ksys_unshare (kernel/fork.c:3243)
[   15.060234][  T202]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.060403][  T202]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.060570][  T202]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.060738][  T202]  ? __ia32_sys_open (fs/open.c:1374)
[   15.060973][  T202]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.061140][  T202]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.061315][  T202]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.061477][  T202]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.061632][  T202]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.061875][  T202]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.062128][  T202] RIP: 0033:0x7f014875abcb
[   15.062301][  T202] 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
[   15.062964][  T202] RSP: 002b:00007ffc68aa0068 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.063223][  T202] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f014875abcb
[   15.063466][  T202] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.063893][  T202] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[   15.064150][  T202] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc68aa2290
[   15.064394][  T202] R13: 0000000000000001 R14: 00007f01484986f8 R15: 00007ffc68aa385d
| [   15.120313][  T203] ------------[ cut here ]------------
| [   15.120549][  T203] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/203
| [   15.120864][  T203] Modules linked in:
| [   15.121349][  T203] Tainted: [W]=WARN
[   15.121502][  T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.121738][  T203] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.122332][  T203] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.122885][  T203] RSP: 0018:ffa0000000917020 EFLAGS: 00010286
[   15.123113][  T203] RAX: 00000000ffffffa6 RBX: ff1100000c780ac0 RCX: 1ff4000000122dca
[   15.123367][  T203] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c780b7c
[   15.123614][  T203] RBP: ff1100000a02c000 R08: 1fe22000018f0171 R09: ff1100000eb62e58
[   15.123881][  T203] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   15.124136][  T203] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   15.124389][  T203] FS:  00007f3c94ade840(0000) GS:ff110000d5bc7000(0000) knlGS:0000000000000000
[   15.124681][  T203] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.124909][  T203] CR2: 000000003ea7f988 CR3: 000000000936e004 CR4: 0000000000771ef0
[   15.125167][  T203] PKRU: 55555554
[   15.125327][  T203] Call Trace:
[   15.125495][  T203]  <TASK>
[   15.125618][  T203]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.125824][  T203]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.125979][  T203]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   15.126170][  T203]  __dev_notify_flags (net/core/dev.c:9787)
[   15.126358][  T203]  ? netif_change_name (net/core/dev.c:1495)
[   15.126540][  T203]  ? __dev_change_flags (net/core/dev.c:9752)
[   15.126750][  T203]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   15.126955][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.127149][  T203]  ? 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))
[   15.127337][  T203]  netif_change_flags (net/core/dev.c:9820)
[   15.127531][  T203]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   15.127715][  T203]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   15.127917][  T203]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   15.128112][  T203]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   15.128350][  T203]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.128536][  T203]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.128716][  T203]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.128908][  T203]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.129102][  T203]  ? __kernel_text_address (kernel/extable.c:79)
[   15.129287][  T203]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.129472][  T203]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.129660][  T203]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.129859][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.130057][  T203]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.130264][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.130462][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.130654][  T203]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   15.130851][  T203]  ? __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)
[   15.131073][  T203]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   15.131290][  T203]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.131477][  T203]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   15.131671][  T203]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   15.131875][  T203]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.132088][  T203]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.132279][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.132469][  T203]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.132651][  T203]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.132859][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.133060][  T203]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.133246][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.133432][  T203]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.133845][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.134044][  T203]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.134231][  T203]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.134421][  T203]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.134607][  T203]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.134809][  T203]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.134996][  T203]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.135190][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.135385][  T203]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.135568][  T203]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.135749][  T203]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.135956][  T203]  ? 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))
[   15.136151][  T203]  ? 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))
[   15.136347][  T203]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.136558][  T203]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.136787][  T203]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.136986][  T203]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.137187][  T203]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.137382][  T203]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.137575][  T203]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.137809][  T203]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.138004][  T203]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.138242][  T203]  ? move_addr_to_kernel (net/socket.c:258)
[   15.138428][  T203]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.138618][  T203]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.138828][  T203]  ___sys_sendmsg (net/socket.c:2752)
[   15.139014][  T203]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   15.139253][  T203]  ? copy_msghdr_from_user (net/socket.c:2603)
[   15.139467][  T203]  __sys_sendmsg (net/socket.c:2784)
[   15.139855][  T203]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   15.140061][  T203]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   15.140283][  T203]  ? 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)
[   15.140472][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.140657][  T203]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.140883][  T203]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.141095][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.141281][  T203]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.141495][  T203] RIP: 0033:0x7f3c94d1808e
[   15.141684][  T203] 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
[   15.142274][  T203] RSP: 002b:00007ffd4e4c09f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.142541][  T203] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f3c94d1808e
[   15.142887][  T203] RDX: 0000000000000000 RSI: 00007ffd4e4c0aa0 RDI: 0000000000000005
[   15.143167][  T203] RBP: 00007ffd4e4c0a00 R08: 0000000000000000 R09: 0000000000000000
[   15.143426][  T203] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c7f8
[   15.143671][  T203] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd4e4c1170
| [   15.314246][  T207] ------------[ cut here ]------------
| [   15.314459][  T207] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/207
| [   15.314707][  T207] Modules linked in:
| [   15.315116][  T207] Tainted: [W]=WARN
[   15.315243][  T207] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.315428][  T207] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.315608][  T207] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.316112][  T207] RSP: 0018:ffa0000000947a80 EFLAGS: 00010286
[   15.316290][  T207] RAX: 00000000ffffffa6 RBX: ff1100000baf3e00 RCX: 1ff4000000128f16
[   15.316492][  T207] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000baf3ebc
[   15.316695][  T207] RBP: ff11000007899000 R08: 1fe220000175e7d9 R09: ff1100000ea05180
[   15.316902][  T207] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.317108][  T207] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007899000
[   15.317320][  T207] FS:  00007fa75a42e840(0000) GS:ff110000d5ac7000(0000) knlGS:0000000000000000
[   15.317563][  T207] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.317739][  T207] CR2: 00007fa75a62fc20 CR3: 000000000aa2d003 CR4: 0000000000771ef0
[   15.317954][  T207] PKRU: 55555554
[   15.318061][  T207] Call Trace:
[   15.318166][  T207]  <TASK>
[   15.318239][  T207]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.318384][  T207]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.318522][  T207]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.318634][  T207]  register_netdevice (net/core/dev.c:11488)
[   15.318777][  T207]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.318946][  T207]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.319086][  T207]  register_netdev (net/core/dev.c:11552)
[   15.319226][  T207]  loopback_net_init (drivers/net/loopback.c:218)
[   15.319367][  T207]  ops_init (net/core/net_namespace.c:137)
[   15.319471][  T207]  setup_net (net/core/net_namespace.c:446)
[   15.319576][  T207]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.319710][  T207]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.319855][  T207]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.319991][  T207]  copy_net_ns (net/core/net_namespace.c:579)
[   15.320132][  T207]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.320274][  T207]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.320409][  T207]  ksys_unshare (kernel/fork.c:3243)
[   15.320548][  T207]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.320713][  T207]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.320855][  T207]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.320991][  T207]  ? __ia32_sys_open (fs/open.c:1374)
[   15.321135][  T207]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.321270][  T207]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.321406][  T207]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.321541][  T207]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.321682][  T207]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.321823][  T207]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.321996][  T207] RIP: 0033:0x7fa75a6f0bcb
[   15.322147][  T207] 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
[   15.322632][  T207] RSP: 002b:00007ffc176f1578 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.322837][  T207] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa75a6f0bcb
[   15.323040][  T207] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.323240][  T207] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.323447][  T207] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc176f37a0
[   15.323645][  T207] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc176f485f
| [   15.327809][  T207] ------------[ cut here ]------------
| [   15.327962][  T207] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/207
| [   15.328204][  T207] Modules linked in:
| [   15.328582][  T207] Tainted: [W]=WARN
[   15.328682][  T207] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.328857][  T207] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.329037][  T207] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.329517][  T207] RSP: 0018:ffa0000000947918 EFLAGS: 00010286
[   15.329692][  T207] RAX: 00000000ffffffa6 RBX: ff1100000c6c03c0 RCX: 1ff4000000128ee9
[   15.329899][  T207] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c6c047c
[   15.330102][  T207] RBP: ff11000007889000 R08: 1fe22000018d8091 R09: ff1100000ea05180
[   15.330312][  T207] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.330511][  T207] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007889000
[   15.330714][  T207] FS:  00007fa75a42e840(0000) GS:ff110000d5ac7000(0000) knlGS:0000000000000000
[   15.330954][  T207] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.331128][  T207] CR2: 00007fa75a62fc20 CR3: 000000000aa2d003 CR4: 0000000000771ef0
[   15.331339][  T207] PKRU: 55555554
[   15.331442][  T207] Call Trace:
[   15.331551][  T207]  <TASK>
[   15.331626][  T207]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.331769][  T207]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.331906][  T207]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.332008][  T207]  register_netdevice (net/core/dev.c:11488)
[   15.332150][  T207]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.332324][  T207]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.332464][  T207]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   15.332599][  T207]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   15.332733][  T207]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   15.332875][  T207]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   15.333014][  T207]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   15.333164][  T207]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   15.333307][  T207]  ops_init (net/core/net_namespace.c:137)
[   15.333411][  T207]  setup_net (net/core/net_namespace.c:446)
[   15.333514][  T207]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.333647][  T207]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.333788][  T207]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.333925][  T207]  copy_net_ns (net/core/net_namespace.c:579)
[   15.334071][  T207]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.334212][  T207]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.334357][  T207]  ksys_unshare (kernel/fork.c:3243)
[   15.334496][  T207]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.334630][  T207]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.334773][  T207]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.334912][  T207]  ? __ia32_sys_open (fs/open.c:1374)
[   15.335051][  T207]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.335185][  T207]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.335325][  T207]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.335457][  T207]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.335593][  T207]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.335729][  T207]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.335901][  T207] RIP: 0033:0x7fa75a6f0bcb
[   15.336053][  T207] 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
[   15.336544][  T207] RSP: 002b:00007ffc176f1578 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.336751][  T207] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa75a6f0bcb
[   15.336957][  T207] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.337169][  T207] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.337378][  T207] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc176f37a0
[   15.337578][  T207] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc176f485f
| [   15.344942][  T207] ------------[ cut here ]------------
| [   15.345145][  T207] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/207
| [   15.345422][  T207] Modules linked in:
| [   15.345829][  T207] Tainted: [W]=WARN
[   15.345965][  T207] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.346167][  T207] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.346392][  T207] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.346951][  T207] RSP: 0018:ffa00000009478f8 EFLAGS: 00010286
[   15.347156][  T207] RAX: 00000000ffffffa6 RBX: ff1100000950fc40 RCX: 1ff4000000128ee5
[   15.347499][  T207] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000950fcfc
[   15.347729][  T207] RBP: ff1100000f709000 R08: 1fe22000012a1fa1 R09: ff1100000ea05180
[   15.347958][  T207] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.348171][  T207] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f709000
[   15.348412][  T207] FS:  00007fa75a42e840(0000) GS:ff110000d5ac7000(0000) knlGS:0000000000000000
[   15.348654][  T207] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.348841][  T207] CR2: 00007fa75a62fc20 CR3: 000000000aa2d003 CR4: 0000000000771ef0
[   15.349126][  T207] PKRU: 55555554
[   15.349302][  T207] Call Trace:
[   15.349412][  T207]  <TASK>
[   15.349484][  T207]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.349623][  T207]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.349776][  T207]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.349922][  T207]  register_netdevice (net/core/dev.c:11488)
[   15.350128][  T207]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.350356][  T207]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.350588][  T207]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   15.350844][  T207]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   15.350989][  T207]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   15.351139][  T207]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   15.351361][  T207]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   15.351522][  T207]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   15.351728][  T207]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   15.351926][  T207]  vti_init_net (net/ipv4/ip_vti.c:517)
[   15.352149][  T207]  ops_init (net/core/net_namespace.c:137)
[   15.352267][  T207]  setup_net (net/core/net_namespace.c:446)
[   15.352398][  T207]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.352544][  T207]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.352680][  T207]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.352831][  T207]  copy_net_ns (net/core/net_namespace.c:579)
[   15.352967][  T207]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.353113][  T207]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.353250][  T207]  ksys_unshare (kernel/fork.c:3243)
[   15.353407][  T207]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.353543][  T207]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.353677][  T207]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.353822][  T207]  ? __ia32_sys_open (fs/open.c:1374)
[   15.353964][  T207]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.354108][  T207]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.354249][  T207]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.354396][  T207]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.354531][  T207]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.354664][  T207]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.354834][  T207] RIP: 0033:0x7fa75a6f0bcb
[   15.354975][  T207] 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
[   15.355461][  T207] RSP: 002b:00007ffc176f1578 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.355662][  T207] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa75a6f0bcb
[   15.355867][  T207] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.356076][  T207] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.356286][  T207] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc176f37a0
[   15.356487][  T207] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc176f485f
| [   15.370865][  T207] ------------[ cut here ]------------
| [   15.371038][  T207] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/207
| [   15.371280][  T207] Modules linked in:
| [   15.371675][  T207] Tainted: [W]=WARN
[   15.371788][  T207] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.371958][  T207] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.372140][  T207] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.372627][  T207] RSP: 0018:ffa0000000947a78 EFLAGS: 00010286
[   15.372806][  T207] RAX: 00000000ffffffa6 RBX: ff1100000950f1c0 RCX: 1ff4000000128f15
[   15.373006][  T207] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000950f27c
[   15.373212][  T207] RBP: ff1100000f5f9000 R08: 1fe22000012a1e51 R09: ff1100000ea05180
[   15.373415][  T207] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.373619][  T207] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f5f9000
[   15.373824][  T207] FS:  00007fa75a42e840(0000) GS:ff110000d5ac7000(0000) knlGS:0000000000000000
[   15.374146][  T207] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.374509][  T207] CR2: 00007fa75a62fc20 CR3: 000000000aa2d003 CR4: 0000000000771ef0
[   15.374896][  T207] PKRU: 55555554
[   15.375123][  T207] Call Trace:
[   15.375320][  T207]  <TASK>
[   15.375461][  T207]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.375706][  T207]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.376001][  T207]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.376223][  T207]  register_netdevice (net/core/dev.c:11488)
[   15.376486][  T207]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.376864][  T207]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.377169][  T207]  register_netdev (net/core/dev.c:11552)
[   15.377446][  T207]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   15.377733][  T207]  ops_init (net/core/net_namespace.c:137)
[   15.377974][  T207]  setup_net (net/core/net_namespace.c:446)
[   15.378173][  T207]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.378431][  T207]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.378588][  T207]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.378731][  T207]  copy_net_ns (net/core/net_namespace.c:579)
[   15.378879][  T207]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.379016][  T207]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.379156][  T207]  ksys_unshare (kernel/fork.c:3243)
[   15.379313][  T207]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.379460][  T207]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.379599][  T207]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.379736][  T207]  ? __ia32_sys_open (fs/open.c:1374)
[   15.379879][  T207]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.380012][  T207]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.380149][  T207]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.380303][  T207]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.380439][  T207]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.380574][  T207]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.380741][  T207] RIP: 0033:0x7fa75a6f0bcb
[   15.380888][  T207] 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
[   15.381376][  T207] RSP: 002b:00007ffc176f1578 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.381579][  T207] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa75a6f0bcb
[   15.381788][  T207] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.381987][  T207] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.382189][  T207] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc176f37a0
[   15.382392][  T207] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc176f485f
| [   15.387962][  T207] ------------[ cut here ]------------
| [   15.388141][  T207] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/207
| [   15.388405][  T207] Modules linked in:
| [   15.388821][  T207] Tainted: [W]=WARN
[   15.388928][  T207] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.389117][  T207] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.389315][  T207] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.389977][  T207] RSP: 0018:ffa0000000947a68 EFLAGS: 00010286
[   15.390240][  T207] RAX: 00000000ffffffa6 RBX: ff1100000c6c18c0 RCX: 1ff4000000128f13
[   15.390564][  T207] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c6c197c
[   15.390898][  T207] RBP: ff1100000e5f1000 R08: 1fe22000018d8331 R09: ff1100000ea05180
[   15.391226][  T207] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.391540][  T207] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e5f1000
[   15.391877][  T207] FS:  00007fa75a42e840(0000) GS:ff110000d5ac7000(0000) knlGS:0000000000000000
[   15.392138][  T207] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.392349][  T207] CR2: 00007fa75a62fc20 CR3: 000000000aa2d003 CR4: 0000000000771ef0
[   15.392561][  T207] PKRU: 55555554
[   15.392669][  T207] Call Trace:
[   15.392793][  T207]  <TASK>
[   15.392868][  T207]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.393009][  T207]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.393159][  T207]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.393274][  T207]  register_netdevice (net/core/dev.c:11488)
[   15.393427][  T207]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.393605][  T207]  register_netdev (net/core/dev.c:11552)
[   15.393743][  T207]  sit_init_net (net/ipv6/sit.c:1860)
[   15.393891][  T207]  ops_init (net/core/net_namespace.c:137)
[   15.394000][  T207]  setup_net (net/core/net_namespace.c:446)
[   15.394112][  T207]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.394251][  T207]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.394403][  T207]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.394546][  T207]  copy_net_ns (net/core/net_namespace.c:579)
[   15.394688][  T207]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.394836][  T207]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.394976][  T207]  ksys_unshare (kernel/fork.c:3243)
[   15.395146][  T207]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.395295][  T207]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.395433][  T207]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.395574][  T207]  ? __ia32_sys_open (fs/open.c:1374)
[   15.395715][  T207]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.395863][  T207]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.396001][  T207]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.396148][  T207]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.396301][  T207]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.396443][  T207]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.396618][  T207] RIP: 0033:0x7fa75a6f0bcb
[   15.396772][  T207] 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
[   15.397301][  T207] RSP: 002b:00007ffc176f1578 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.397521][  T207] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa75a6f0bcb
[   15.397730][  T207] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.397953][  T207] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.398169][  T207] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc176f37a0
[   15.398383][  T207] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc176f485f
| [   15.405301][  T207] ------------[ cut here ]------------
| [   15.405466][  T207] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/207
| [   15.405707][  T207] Modules linked in:
| [   15.406114][  T207] Tainted: [W]=WARN
[   15.406227][  T207] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.406407][  T207] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.406590][  T207] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.407093][  T207] RSP: 0018:ffa0000000947a78 EFLAGS: 00010286
[   15.407277][  T207] RAX: 00000000ffffffa6 RBX: ff11000008dc8580 RCX: 1ff4000000128f15
[   15.407487][  T207] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008dc863c
[   15.407696][  T207] RBP: ff11000009a31000 R08: 1fe22000011b90c9 R09: ff1100000ea05180
[   15.407910][  T207] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.408124][  T207] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009a31000
[   15.408340][  T207] FS:  00007fa75a42e840(0000) GS:ff110000d5ac7000(0000) knlGS:0000000000000000
[   15.408584][  T207] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.408765][  T207] CR2: 00007fa75a62fc20 CR3: 000000000aa2d003 CR4: 0000000000771ef0
[   15.408985][  T207] PKRU: 55555554
[   15.409104][  T207] Call Trace:
[   15.409210][  T207]  <TASK>
[   15.409288][  T207]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.409429][  T207]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.409569][  T207]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.409676][  T207]  register_netdevice (net/core/dev.c:11488)
[   15.410420][  T207]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.410597][  T207]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.410742][  T207]  register_netdev (net/core/dev.c:11552)
[   15.410944][  T207]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   15.411093][  T207]  ops_init (net/core/net_namespace.c:137)
[   15.411202][  T207]  setup_net (net/core/net_namespace.c:446)
[   15.411307][  T207]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.411443][  T207]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.411581][  T207]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.411726][  T207]  copy_net_ns (net/core/net_namespace.c:579)
[   15.411936][  T207]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.412084][  T207]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.412224][  T207]  ksys_unshare (kernel/fork.c:3243)
[   15.412367][  T207]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.412507][  T207]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.412647][  T207]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.412872][  T207]  ? __ia32_sys_open (fs/open.c:1374)
[   15.413013][  T207]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.413157][  T207]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.413299][  T207]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.413438][  T207]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.413578][  T207]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.413716][  T207]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.413955][  T207] RIP: 0033:0x7fa75a6f0bcb
[   15.414115][  T207] 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
[   15.414611][  T207] RSP: 002b:00007ffc176f1578 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.414886][  T207] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa75a6f0bcb
[   15.415105][  T207] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.415323][  T207] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.415531][  T207] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc176f37a0
[   15.415739][  T207] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc176f485f
| [   15.458917][  T208] ------------[ cut here ]------------
| [   15.459213][  T208] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/208
| [   15.459619][  T208] Modules linked in:
| [   15.460612][  T208] Tainted: [W]=WARN
[   15.460837][  T208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.461159][  T208] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.461493][  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
[   15.462305][  T208] RSP: 0018:ffa0000000957020 EFLAGS: 00010286
[   15.462620][  T208] RAX: 00000000ffffffa6 RBX: ff11000008dc8900 RCX: 1ff400000012adca
[   15.462996][  T208] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008dc89bc
[   15.463367][  T208] RBP: ff11000007899000 R08: 1fe22000011b9139 R09: ff11000010012e58
[   15.463735][  T208] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   15.464114][  T208] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   15.464472][  T208] FS:  00007f89a9358840(0000) GS:ff110000d5bc7000(0000) knlGS:0000000000000000
[   15.464898][  T208] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.465223][  T208] CR2: 000000000853a988 CR3: 000000000f734002 CR4: 0000000000771ef0
[   15.465591][  T208] PKRU: 55555554
[   15.465813][  T208] Call Trace:
[   15.466019][  T208]  <TASK>
[   15.466190][  T208]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.466458][  T208]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.466667][  T208]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   15.466944][  T208]  __dev_notify_flags (net/core/dev.c:9787)
[   15.467221][  T208]  ? netif_change_name (net/core/dev.c:1495)
[   15.467491][  T208]  ? __dev_change_flags (net/core/dev.c:9752)
[   15.467771][  T208]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   15.468034][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.468299][  T208]  ? 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))
[   15.468566][  T208]  netif_change_flags (net/core/dev.c:9820)
[   15.468844][  T208]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   15.469112][  T208]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   15.469385][  T208]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   15.469641][  T208]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   15.469957][  T208]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.470219][  T208]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.470477][  T208]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.470726][  T208]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.470996][  T208]  ? __kernel_text_address (kernel/extable.c:79)
[   15.471258][  T208]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.471510][  T208]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.471774][  T208]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.472043][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.472304][  T208]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.472556][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.472831][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.473086][  T208]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   15.473355][  T208]  ? __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)
[   15.473596][  T208]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   15.473858][  T208]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.474114][  T208]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   15.474366][  T208]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   15.474613][  T208]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.474874][  T208]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.475122][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.475387][  T208]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.475626][  T208]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.475908][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.476186][  T208]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.476453][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.476725][  T208]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.477013][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.477282][  T208]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.477533][  T208]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.477798][  T208]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.478052][  T208]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.478295][  T208]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.478542][  T208]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.478813][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.479072][  T208]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.479341][  T208]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.479611][  T208]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.479898][  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))
[   15.480167][  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))
[   15.480439][  T208]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.480711][  T208]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.480987][  T208]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.481262][  T208]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.481529][  T208]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.481808][  T208]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.482085][  T208]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.482358][  T208]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.482622][  T208]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.482951][  T208]  ? move_addr_to_kernel (net/socket.c:258)
[   15.483221][  T208]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.483480][  T208]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.483740][  T208]  ___sys_sendmsg (net/socket.c:2752)
[   15.484020][  T208]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   15.484336][  T208]  ? copy_msghdr_from_user (net/socket.c:2603)
[   15.484621][  T208]  __sys_sendmsg (net/socket.c:2784)
[   15.484905][  T208]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   15.485172][  T208]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   15.485493][  T208]  ? 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)
[   15.485773][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.486043][  T208]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.486310][  T208]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.486574][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.486856][  T208]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.487181][  T208] RIP: 0033:0x7f89a959208e
[   15.487456][  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
[   15.488264][  T208] RSP: 002b:00007fffcde0c970 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.488627][  T208] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f89a959208e
[   15.489168][  T208] RDX: 0000000000000000 RSI: 00007fffcde0ca20 RDI: 0000000000000005
[   15.489530][  T208] RBP: 00007fffcde0c980 R08: 0000000000000000 R09: 0000000000000000
[   15.489900][  T208] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c7f8
[   15.490276][  T208] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffcde0d0f0
| [   15.676678][  T211] ------------[ cut here ]------------
| [   15.677075][  T211] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/211
| [   15.677492][  T211] Modules linked in:
| [   15.678082][  T211] Tainted: [W]=WARN
[   15.678251][  T211] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.678498][  T211] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.678749][  T211] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.679443][  T211] RSP: 0018:ffa0000000986e30 EFLAGS: 00010286
[   15.679746][  T211] RAX: 00000000ffffffa6 RBX: ff1100000d177000 RCX: 1ff4000000130d8c
[   15.680122][  T211] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1770bc
[   15.680490][  T211] RBP: ff1100000f6fc000 R08: 1fe2200001a2ee19 R09: ff1100000e590b80
[   15.680843][  T211] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.681107][  T211] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000940cb04
[   15.681367][  T211] FS:  00007f6e6d5c8840(0000) GS:ff110000d5bc7000(0000) knlGS:0000000000000000
[   15.681662][  T211] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.681901][  T211] CR2: 00000000004eb188 CR3: 000000000cbfc005 CR4: 0000000000771ef0
[   15.682170][  T211] PKRU: 55555554
[   15.682321][  T211] Call Trace:
[   15.682523][  T211]  <TASK>
[   15.682658][  T211]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   15.682910][  T211]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.683129][  T211]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.683300][  T211]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.683545][  T211]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.683793][  T211]  __dev_notify_flags (net/core/dev.c:9787)
[   15.683982][  T211]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.684178][  T211]  ? netif_change_name (net/core/dev.c:1495)
[   15.684381][  T211]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[   15.684581][  T211]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[   15.684811][  T211]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   15.685074][  T211]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   15.685310][  T211]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.685507][  T211]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   15.685717][  T211]  veth_newlink (drivers/net/veth.c:1871)
[   15.685939][  T211]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   15.686197][  T211]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.686397][  T211]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.686587][  T211]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   15.686825][  T211]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   15.687076][  T211]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   15.687331][  T211]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   15.687549][  T211]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.687774][  T211]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   15.687994][  T211]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   15.688220][  T211]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   15.688431][  T211]  ? __dev_get_by_name (net/core/dev.c:883)
[   15.688634][  T211]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   15.688859][  T211]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   15.689075][  T211]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.689277][  T211]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.689475][  T211]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.689704][  T211]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.689930][  T211]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.690149][  T211]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.690366][  T211]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.690575][  T211]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.690800][  T211]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.691011][  T211]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.691234][  T211]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.691441][  T211]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.691667][  T211]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.691882][  T211]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.692096][  T211]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.692320][  T211]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.692582][  T211]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.692858][  T211]  ? 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))
[   15.693121][  T211]  ? 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))
[   15.693385][  T211]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.693575][  T211]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.693779][  T211]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.693982][  T211]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.694225][  T211]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.694433][  T211]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.694648][  T211]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.694874][  T211]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.695095][  T211]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.695397][  T211]  ? move_addr_to_kernel (net/socket.c:258)
[   15.695659][  T211]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.695936][  T211]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   15.696226][  T211]  ___sys_sendmsg (net/socket.c:2752)
[   15.696426][  T211]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   15.696641][  T211]  ? copy_msghdr_from_user (net/socket.c:2603)
[   15.696921][  T211]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   15.697186][  T211]  ? 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))
[   15.697421][  T211]  __sys_sendmsg (net/socket.c:2784)
[   15.697615][  T211]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   15.697824][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.698049][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.698260][  T211]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.698518][  T211]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.698710][  T211]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.698924][  T211]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.699176][  T211] RIP: 0033:0x7f6e6d80208e
[   15.699394][  T211] 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
[   15.700136][  T211] RSP: 002b:00007fff392922c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.700422][  T211] RAX: ffffffffffffffda RBX: 00007fff39292a70 RCX: 00007f6e6d80208e
[   15.700704][  T211] RDX: 0000000000000000 RSI: 00007fff39292370 RDI: 0000000000000005
[   15.701081][  T211] RBP: 00007fff392922d0 R08: 0000000000000000 R09: 0000000000000000
[   15.701354][  T211] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c7f8
[   15.701636][  T211] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff39292a40
| [   15.719832][  T211] ------------[ cut here ]------------
| [   15.720079][  T211] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/211
| [   15.720379][  T211] Modules linked in:
| [   15.720874][  T211] Tainted: [W]=WARN
[   15.721036][  T211] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.721262][  T211] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.721506][  T211] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.722056][  T211] RSP: 0018:ffa00000009871b0 EFLAGS: 00010286
[   15.722281][  T211] RAX: 00000000ffffffa6 RBX: ff1100000787fe00 RCX: 1ff4000000130dfc
[   15.722547][  T211] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000787febc
[   15.722809][  T211] RBP: ff1100000f6d1000 R08: 1fe2200000f0ffd9 R09: ff1100000e590b80
[   15.723068][  T211] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.723342][  T211] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff94403b20
[   15.723600][  T211] FS:  00007f6e6d5c8840(0000) GS:ff110000d5bc7000(0000) knlGS:0000000000000000
[   15.724932][  T211] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.725178][  T211] CR2: 00000000004eb188 CR3: 000000000cbfc005 CR4: 0000000000771ef0
[   15.725456][  T211] PKRU: 55555554
[   15.725608][  T211] Call Trace:
[   15.725772][  T211]  <TASK>
[   15.725892][  T211]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.726100][  T211]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.726253][  T211]  __dev_notify_flags (net/core/dev.c:9787)
[   15.726448][  T211]  ? netif_change_name (net/core/dev.c:1495)
[   15.726632][  T211]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   15.726830][  T211]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.727015][  T211]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   15.727208][  T211]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   15.727404][  T211]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   15.727587][  T211]  ? __dev_get_by_name (net/core/dev.c:883)
[   15.727784][  T211]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   15.727973][  T211]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   15.728168][  T211]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.728363][  T211]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.728545][  T211]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.728731][  T211]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.728927][  T211]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.729117][  T211]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.729350][  T211]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.729588][  T211]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.730836][  T211]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.731020][  T211]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.731231][  T211]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.731426][  T211]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.731604][  T211]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.731794][  T211]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.731968][  T211]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.732163][  T211]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.732363][  T211]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.732545][  T211]  ? 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))
[   15.732740][  T211]  ? 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))
[   15.732940][  T211]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.733125][  T211]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.733304][  T211]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.733478][  T211]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.733652][  T211]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.733865][  T211]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.734048][  T211]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.734229][  T211]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.734430][  T211]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.734629][  T211]  ? move_addr_to_kernel (net/socket.c:258)
[   15.734818][  T211]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.734992][  T211]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   15.735170][  T211]  ___sys_sendmsg (net/socket.c:2752)
[   15.735350][  T211]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   15.735528][  T211]  ? copy_msghdr_from_user (net/socket.c:2603)
[   15.735704][  T211]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   15.735895][  T211]  ? 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))
[   15.736078][  T211]  __sys_sendmsg (net/socket.c:2784)
[   15.736252][  T211]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   15.736436][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.736611][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.736797][  T211]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.736974][  T211]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.737154][  T211]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.737337][  T211]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.737542][  T211] RIP: 0033:0x7f6e6d80208e
[   15.737725][  T211] 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
[   15.738238][  T211] RSP: 002b:00007fff392922c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.738488][  T211] RAX: ffffffffffffffda RBX: 00007fff39292a70 RCX: 00007f6e6d80208e
[   15.738723][  T211] RDX: 0000000000000000 RSI: 00007fff39292370 RDI: 0000000000000005
[   15.738993][  T211] RBP: 00007fff392922d0 R08: 0000000000000000 R09: 0000000000000000
[   15.739232][  T211] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c7f8
[   15.739489][  T211] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff39292a40
| [   15.827940][  T214] ------------[ cut here ]------------
| [   15.828262][  T214] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/214
| [   15.828669][  T214] Modules linked in:
| [   15.829702][  T214] Tainted: [W]=WARN
[   15.829925][  T214] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.830243][  T214] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.830561][  T214] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.831366][  T214] RSP: 0018:ffa00000009970b8 EFLAGS: 00010286
[   15.831679][  T214] RAX: 00000000ffffffa6 RBX: ff1100000787e580 RCX: 1ff4000000132ddd
[   15.832057][  T214] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000787e63c
[   15.832414][  T214] RBP: ff1100000f6d1000 R08: 1fe2200000f0fcc9 R09: ff1100000fd70b58
[   15.832794][  T214] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   15.833155][  T214] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   15.833528][  T214] FS:  00007f7e56a84840(0000) GS:ff110000d5bc7000(0000) knlGS:0000000000000000
[   15.833949][  T214] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.834270][  T214] CR2: 000000003f8ed988 CR3: 0000000004bb4003 CR4: 0000000000771ef0
[   15.834623][  T214] PKRU: 55555554
[   15.834843][  T214] Call Trace:
[   15.835059][  T214]  <TASK>
[   15.835220][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.835478][  T214]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   15.835734][  T214]  notifier_call_chain (kernel/notifier.c:85)
[   15.836012][  T214]  netif_change_tx_queue_len (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9927)
[   15.836279][  T214]  ? 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))
[   15.836535][  T214]  ? netif_set_mtu (net/core/dev.c:9914)
[   15.836807][  T214]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   15.837069][  T214]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   15.837327][  T214]  do_setlink.isra.0 (net/core/rtnetlink.c:3229)
[   15.837584][  T214]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   15.837855][  T214]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   15.838169][  T214]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.838424][  T214]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.838676][  T214]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.838947][  T214]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.839209][  T214]  ? __kernel_text_address (kernel/extable.c:79)
[   15.839465][  T214]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.839719][  T214]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.839992][  T214]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.840257][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.840513][  T214]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.840781][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.841041][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.841296][  T214]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   15.841551][  T214]  ? __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)
[   15.841821][  T214]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   15.842086][  T214]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.842342][  T214]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   15.842597][  T214]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.842890][  T214]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   15.843160][  T214]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.843421][  T214]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.843670][  T214]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.843941][  T214]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.844198][  T214]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.844450][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.844707][  T214]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.844972][  T214]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.845257][  T214]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.845518][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.845798][  T214]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.846058][  T214]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.846317][  T214]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.846570][  T214]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.846844][  T214]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.847115][  T214]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.847368][  T214]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.847626][  T214]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.847902][  T214]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.848162][  T214]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.848427][  T214]  ? 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))
[   15.848686][  T214]  ? 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))
[   15.848966][  T214]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.849235][  T214]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.849494][  T214]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.849772][  T214]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.850048][  T214]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.850311][  T214]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.850570][  T214]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.850843][  T214]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.851134][  T214]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.851458][  T214]  ? move_addr_to_kernel (net/socket.c:258)
[   15.851720][  T214]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.852002][  T214]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.852270][  T214]  ___sys_sendmsg (net/socket.c:2752)
[   15.852523][  T214]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   15.852851][  T214]  ? copy_msghdr_from_user (net/socket.c:2603)
[   15.853142][  T214]  __sys_sendmsg (net/socket.c:2784)
[   15.853402][  T214]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   15.853655][  T214]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   15.853991][  T214]  ? 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)
[   15.854255][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.854511][  T214]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.854786][  T214]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.855047][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.855296][  T214]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.855583][  T214] RIP: 0033:0x7f7e56cbe08e
[   15.855848][  T214] 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
[   15.856585][  T214] RSP: 002b:00007fff107f3140 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.856943][  T214] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f7e56cbe08e
[   15.857322][  T214] RDX: 0000000000000000 RSI: 00007fff107f31f0 RDI: 0000000000000005
[   15.857655][  T214] RBP: 00007fff107f3150 R08: 0000000000000000 R09: 0000000000000000
[   15.858018][  T214] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c7f9
[   15.858383][  T214] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff107f38c0
| [   15.893592][  T215] ------------[ cut here ]------------
| [   15.894512][  T215] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/215
| [   15.894780][  T215] Modules linked in:
| [   15.895180][  T215] Tainted: [W]=WARN
[   15.895288][  T215] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.895477][  T215] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.895666][  T215] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.896174][  T215] RSP: 0018:ffa00000009a7020 EFLAGS: 00010286
[   15.896358][  T215] RAX: 00000000ffffffa6 RBX: ff1100000e277000 RCX: 1ff4000000134dca
[   15.896576][  T215] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e2770bc
[   15.896804][  T215] RBP: ff1100000f6d1000 R08: 1fe2200001c4ee19 R09: ff1100000fd72e58
[   15.897019][  T215] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   15.897256][  T215] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   15.897474][  T215] FS:  00007fa66b675840(0000) GS:ff110000d5c47000(0000) knlGS:0000000000000000
[   15.897734][  T215] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.897931][  T215] CR2: 0000000014548988 CR3: 0000000004b9d001 CR4: 0000000000771ef0
[   15.898149][  T215] PKRU: 55555554
[   15.898253][  T215] Call Trace:
[   15.898354][  T215]  <TASK>
[   15.898430][  T215]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.898580][  T215]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.898687][  T215]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   15.898837][  T215]  __dev_notify_flags (net/core/dev.c:9787)
[   15.898979][  T215]  ? netif_change_name (net/core/dev.c:1495)
[   15.899127][  T215]  ? __dev_change_flags (net/core/dev.c:9752)
[   15.899282][  T215]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   15.899430][  T215]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.899566][  T215]  ? 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))
[   15.899709][  T215]  netif_change_flags (net/core/dev.c:9820)
[   15.899854][  T215]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   15.899986][  T215]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   15.900126][  T215]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   15.900269][  T215]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   15.900444][  T215]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.900588][  T215]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.900726][  T215]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.900876][  T215]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.901021][  T215]  ? __kernel_text_address (kernel/extable.c:79)
[   15.901184][  T215]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.901331][  T215]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.901480][  T215]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.901623][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.901773][  T215]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.901920][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.902069][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.902213][  T215]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   15.902358][  T215]  ? __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)
[   15.902498][  T215]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   15.902642][  T215]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.902789][  T215]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   15.902941][  T215]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   15.903096][  T215]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.903250][  T215]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.903394][  T215]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.903537][  T215]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.903679][  T215]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.903825][  T215]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.903964][  T215]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.904103][  T215]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.904244][  T215]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.904378][  T215]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.904516][  T215]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.904649][  T215]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.904788][  T215]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.904922][  T215]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.905060][  T215]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.905204][  T215]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.905343][  T215]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.905481][  T215]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.905622][  T215]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.905768][  T215]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.905916][  T215]  ? 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))
[   15.906059][  T215]  ? 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))
[   15.906200][  T215]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.906338][  T215]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.906477][  T215]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.906618][  T215]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.906765][  T215]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.906899][  T215]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.907040][  T215]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.907174][  T215]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.907314][  T215]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.907484][  T215]  ? move_addr_to_kernel (net/socket.c:258)
[   15.907617][  T215]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.907765][  T215]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.907905][  T215]  ___sys_sendmsg (net/socket.c:2752)
[   15.908045][  T215]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   15.908226][  T215]  ? copy_msghdr_from_user (net/socket.c:2603)
[   15.908377][  T215]  __sys_sendmsg (net/socket.c:2784)
[   15.908520][  T215]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   15.908661][  T215]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   15.908837][  T215]  ? 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)
[   15.908975][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.909116][  T215]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.909260][  T215]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.909391][  T215]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.909525][  T215]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.909707][  T215] RIP: 0033:0x7fa66b8af08e
[   15.909851][  T215] 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
[   15.910329][  T215] RSP: 002b:00007ffe99891380 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.910529][  T215] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa66b8af08e
[   15.910726][  T215] RDX: 0000000000000000 RSI: 00007ffe99891430 RDI: 0000000000000005
[   15.910927][  T215] RBP: 00007ffe99891390 R08: 0000000000000000 R09: 0000000000000000
[   15.911126][  T215] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c7f9
[   15.911325][  T215] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe99891b00
| [   16.162205][  T220] ------------[ cut here ]------------
| [   16.162414][  T220] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/220
| [   16.162651][  T220] Modules linked in:
| [   16.163081][  T220] Tainted: [W]=WARN
[   16.163190][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.163365][  T220] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.163549][  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
[   16.164042][  T220] RSP: 0018:ffa0000000917020 EFLAGS: 00010286
[   16.164386][  T220] RAX: 00000000ffffffa6 RBX: ff1100000c697c40 RCX: 1ff4000000122dca
[   16.164587][  T220] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c697cfc
[   16.165024][  T220] RBP: ff1100000f6fc000 R08: 1fe22000018d2fa1 R09: ff1100000f778b58
[   16.165287][  T220] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   16.165487][  T220] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   16.165700][  T220] FS:  00007f1abff16840(0000) GS:ff110000d5c47000(0000) knlGS:0000000000000000
[   16.166056][  T220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.166446][  T220] CR2: 000000002bba7988 CR3: 0000000004bb4004 CR4: 0000000000771ef0
[   16.166737][  T220] PKRU: 55555554
[   16.167026][  T220] Call Trace:
[   16.167179][  T220]  <TASK>
[   16.167279][  T220]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.167424][  T220]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.167552][  T220]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   16.167689][  T220]  __dev_notify_flags (net/core/dev.c:9787)
[   16.167889][  T220]  ? netif_change_name (net/core/dev.c:1495)
[   16.168023][  T220]  ? __dev_change_flags (net/core/dev.c:9752)
[   16.168161][  T220]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   16.168309][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.168471][  T220]  ? 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))
[   16.168606][  T220]  netif_change_flags (net/core/dev.c:9820)
[   16.168752][  T220]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   16.168967][  T220]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   16.169105][  T220]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   16.169239][  T220]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   16.169409][  T220]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.169542][  T220]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.169676][  T220]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.169820][  T220]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.169957][  T220]  ? __kernel_text_address (kernel/extable.c:79)
[   16.170270][  T220]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.170405][  T220]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.170536][  T220]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.170668][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.170803][  T220]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.170942][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.171086][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.171219][  T220]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   16.171358][  T220]  ? __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)
[   16.171490][  T220]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   16.171622][  T220]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.171760][  T220]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   16.171895][  T220]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   16.172036][  T220]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.172175][  T220]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.172311][  T220]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.172442][  T220]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.172573][  T220]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.172705][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.172843][  T220]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.172974][  T220]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.173138][  T220]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.173296][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.173478][  T220]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.173673][  T220]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.173882][  T220]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.174085][  T220]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.174278][  T220]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.174429][  T220]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.174563][  T220]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.174695][  T220]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.174841][  T220]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.174978][  T220]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.175117][  T220]  ? 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))
[   16.175248][  T220]  ? 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))
[   16.175385][  T220]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.175518][  T220]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.175668][  T220]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.175806][  T220]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.175936][  T220]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.176074][  T220]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.176208][  T220]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.176348][  T220]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.176476][  T220]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.176639][  T220]  ? move_addr_to_kernel (net/socket.c:258)
[   16.176775][  T220]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.176911][  T220]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.177102][  T220]  ___sys_sendmsg (net/socket.c:2752)
[   16.177234][  T220]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   16.177483][  T220]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.177696][  T220]  __sys_sendmsg (net/socket.c:2784)
[   16.177906][  T220]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.178105][  T220]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   16.178353][  T220]  ? 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)
[   16.178550][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.178689][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.178835][  T220]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.178967][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.179105][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.179273][  T220] RIP: 0033:0x7f1ac015008e
[   16.179412][  T220] 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
[   16.179925][  T220] RSP: 002b:00007ffd628c8820 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.180143][  T220] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f1ac015008e
[   16.180369][  T220] RDX: 0000000000000000 RSI: 00007ffd628c88d0 RDI: 0000000000000005
[   16.180580][  T220] RBP: 00007ffd628c8830 R08: 0000000000000000 R09: 0000000000000000
[   16.180784][  T220] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c7f9
[   16.181010][  T220] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd628c8fa0
| [   16.184113][   T93] ------------[ cut here ]------------
| [   16.184338][   T93] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/93
| [   16.184653][   T93] Modules linked in:
| [   16.185360][   T93] Tainted: [W]=WARN
[   16.185521][   T93] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.185730][   T93] Workqueue: events_unbound linkwatch_event
[   16.186205][   T93] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.186428][   T93] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.186932][   T93] RSP: 0018:ffa00000005e79e0 EFLAGS: 00010286
[   16.187145][   T93] RAX: 00000000ffffffa6 RBX: ff1100000c52c200 RCX: 1ff40000000bcf02
[   16.187381][   T93] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c52c2bc
[   16.187605][   T93] RBP: ff1100000f6d1000 R08: 1fe22000018a5859 R09: ff1100000aa1aea8
[   16.187913][   T93] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   16.188163][   T93] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.188409][   T93] FS:  0000000000000000(0000) GS:ff110000d5bc7000(0000) knlGS:0000000000000000
[   16.188681][   T93] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.188899][   T93] CR2: 0000556712f80d5c CR3: 000000000e038005 CR4: 0000000000771ef0
[   16.189138][   T93] PKRU: 55555554
[   16.189280][   T93] Call Trace:
[   16.189435][   T93]  <TASK>
[   16.189546][   T93]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.189793][   T93]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.189963][   T93]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.190110][   T93]  netif_state_change (net/core/dev.c:1605)
[   16.190287][   T93]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   16.190492][   T93]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   16.190713][   T93]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   16.190907][   T93]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.191082][   T93]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   16.191252][   T93]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   16.191437][   T93]  process_one_work (kernel/workqueue.c:3314)
[   16.191611][   T93]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.191792][   T93]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.191971][   T93]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.192182][   T93]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.192366][   T93]  kthread (kernel/kthread.c:436)
[   16.192509][   T93]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.192715][   T93]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.192932][   T93]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.193132][   T93]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.193354][   T93]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.193534][   T93]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.193703][   T93]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.304108][  T224] ------------[ cut here ]------------
| [   16.304307][  T224] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/224
| [   16.304554][  T224] Modules linked in:
| [   16.304949][  T224] Tainted: [W]=WARN
[   16.305059][  T224] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.305229][  T224] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.305436][  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
[   16.305941][  T224] RSP: 0018:ffa00000009e7150 EFLAGS: 00010286
[   16.306119][  T224] RAX: 00000000ffffffa6 RBX: ff1100000c52d8c0 RCX: 1ff400000013cdf0
[   16.306328][  T224] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c52d97c
[   16.306525][  T224] RBP: ff1100000f6fc000 R08: 1fe22000018a5b31 R09: ff1100000e368b58
[   16.306723][  T224] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   16.306927][  T224] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d3134c0
[   16.307143][  T224] FS:  00007f522a4fc840(0000) GS:ff110000d5c47000(0000) knlGS:0000000000000000
[   16.307389][  T224] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.307570][  T224] CR2: 00000000004ecf40 CR3: 000000000faa8004 CR4: 0000000000771ef0
[   16.307784][  T224] PKRU: 55555554
[   16.307884][  T224] Call Trace:
[   16.307984][  T224]  <TASK>
[   16.308061][  T224]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.308207][  T224]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.308351][  T224]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.308496][  T224]  netif_state_change (net/core/dev.c:1605)
[   16.308695][  T224]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   16.308882][  T224]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   16.309059][  T224]  linkwatch_sync_dev (net/core/link_watch.c:295)
[   16.309192][  T224]  rtnl_getlink (net/core/rtnetlink.c:4273)
[   16.309339][  T224]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.309473][  T224]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.309605][  T224]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   16.309735][  T224]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.309980][  T224]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.310120][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.310272][  T224]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.310407][  T224]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.310538][  T224]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.310667][  T224]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.310887][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.311021][  T224]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.311158][  T224]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   16.311294][  T224]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.311494][  T224]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.311689][  T224]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.312043][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.312244][  T224]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.312401][  T224]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.312533][  T224]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.312666][  T224]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.312897][  T224]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.313042][  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))
[   16.313174][  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))
[   16.313322][  T224]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.313455][  T224]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.313586][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.313718][  T224]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.313863][  T224]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.313995][  T224]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.314140][  T224]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.314277][  T224]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.314413][  T224]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.314577][  T224]  ? move_addr_to_kernel (net/socket.c:258)
[   16.314708][  T224]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.314848][  T224]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   16.315012][  T224]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.315151][  T224]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   16.315322][  T224]  ___sys_sendmsg (net/socket.c:2752)
[   16.315454][  T224]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.315585][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.315724][  T224]  ? move_addr_to_user (./include/linux/uaccess.h:236 net/socket.c:302)
[   16.315859][  T224]  ? do_getsockname (net/socket.c:2192)
[   16.315992][  T224]  __sys_sendmsg (net/socket.c:2784)
[   16.316130][  T224]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.316269][  T224]  ? __sys_getsockname (net/socket.c:2210)
[   16.316400][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.316576][  T224]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.316770][  T224]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.316904][  T224]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.317045][  T224]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.317212][  T224] RIP: 0033:0x7f522a73608e
[   16.317366][  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
[   16.317884][  T224] RSP: 002b:00007ffd05207560 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.318097][  T224] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f522a73608e
[   16.318307][  T224] RDX: 0000000000000000 RSI: 00007ffd05207610 RDI: 0000000000000006
[   16.318508][  T224] RBP: 00007ffd05207570 R08: 0000000000000000 R09: 0000000000000000
[   16.318710][  T224] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c7f9
[   16.318918][  T224] R13: 00007ffd052076c0 R14: 0000000000000000 R15: 00007ffd05208230
| [  315.675219][   T65] ------------[ cut here ]------------
| [  315.675435][   T65] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/65
| [  315.675696][   T65] Modules linked in:
| [  315.676222][   T65] Tainted: [W]=WARN
[  315.676316][   T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  315.676471][   T65] Workqueue: netns cleanup_net
[  315.676608][   T65] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  315.676858][   T65] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[  315.677358][   T65] RSP: 0018:ffa0000000467938 EFLAGS: 00010286
[  315.677545][   T65] RAX: 00000000ffffffa6 RBX: ff1100000d2de900 RCX: 1ff400000008ceed
[  315.677736][   T65] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2de9bc
[  315.677936][   T65] RBP: ff11000009a31000 R08: 1fe2200001a5bd39 R09: ff110000090b2ed0
[  315.678125][   T65] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[  315.678312][   T65] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  315.678518][   T65] FS:  0000000000000000(0000) GS:ff110000d5b47000(0000) knlGS:0000000000000000
[  315.678740][   T65] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  315.678916][   T65] CR2: 00007f94b7fae000 CR3: 000000004d94d002 CR4: 0000000000771ef0
[  315.679101][   T65] PKRU: 55555554
[  315.679194][   T65] Call Trace:
[  315.679287][   T65]  <TASK>
[  315.679441][   T65]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  315.679613][   T65]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  315.679769][   T65]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[  315.679896][   T65]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[  315.680024][   T65]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  315.680145][   T65]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[  315.680268][   T65]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  315.680392][   T65]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[  315.680521][   T65]  ? netns_install (./include/linux/ns_common.h:26)
[  315.680643][   T65]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  315.680774][   T65]  cleanup_net (net/core/net_namespace.c:702)
[  315.680898][   T65]  ? net_passive_dec (./include/linux/llist.h:241)
[  315.681026][   T65]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  315.681157][   T65]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  315.681280][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.681404][   T65]  process_one_work (kernel/workqueue.c:3314)
[  315.681534][   T65]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  315.681653][   T65]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  315.681864][   T65]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  315.681991][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.682117][   T65]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  315.682244][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.682365][   T65]  kthread (kernel/kthread.c:436)
[  315.682458][   T65]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  315.682623][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.682745][   T65]  ret_from_fork (arch/x86/kernel/process.c:158)
[  315.682879][   T65]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  315.683032][   T65]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  315.683158][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.683280][   T65]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  315.686855][   T65] ------------[ cut here ]------------
| [  315.687097][   T65] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/65
| [  315.687512][   T65] Modules linked in:
| [  315.688198][   T65] Tainted: [W]=WARN
[  315.688387][   T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  315.688678][   T65] Workqueue: netns cleanup_net
[  315.688976][   T65] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  315.689269][   T65] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[  315.690000][   T65] RSP: 0018:ffa0000000467938 EFLAGS: 00010286
[  315.690286][   T65] RAX: 00000000ffffffa6 RBX: ff1100000d2de740 RCX: 1ff400000008ceed
[  315.690618][   T65] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2de7fc
[  315.690959][   T65] RBP: ff1100000e5f1000 R08: 1fe2200001a5bd01 R09: ff110000090b2ed0
[  315.691286][   T65] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  315.691622][   T65] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  315.691968][   T65] FS:  0000000000000000(0000) GS:ff110000d5bc7000(0000) knlGS:0000000000000000
[  315.692334][   T65] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  315.692624][   T65] CR2: 0000556712e6ac50 CR3: 000000004d94d005 CR4: 0000000000771ef0
[  315.692967][   T65] PKRU: 55555554
[  315.693154][   T65] Call Trace:
[  315.693342][   T65]  <TASK>
[  315.693497][   T65]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  315.693806][   T65]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  315.694085][   T65]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[  315.694323][   T65]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[  315.694573][   T65]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  315.694819][   T65]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[  315.695057][   T65]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  315.695298][   T65]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[  315.695546][   T65]  ? netns_install (./include/linux/ns_common.h:26)
[  315.695797][   T65]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  315.696041][   T65]  cleanup_net (net/core/net_namespace.c:702)
[  315.696293][   T65]  ? net_passive_dec (./include/linux/llist.h:241)
[  315.696534][   T65]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  315.696790][   T65]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  315.697025][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.697263][   T65]  process_one_work (kernel/workqueue.c:3314)
[  315.697512][   T65]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  315.697748][   T65]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  315.698005][   T65]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  315.698250][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.698483][   T65]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  315.698732][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.698981][   T65]  kthread (kernel/kthread.c:436)
[  315.699167][   T65]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  315.699437][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.699680][   T65]  ret_from_fork (arch/x86/kernel/process.c:158)
[  315.699930][   T65]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  315.700207][   T65]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  315.700439][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.700675][   T65]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  315.706856][   T65] ------------[ cut here ]------------
| [  315.707089][   T65] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/65
| [  315.707501][   T65] Modules linked in:
| [  315.709744][   T65] Tainted: [W]=WARN
[  315.709952][   T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  315.710233][   T65] Workqueue: netns cleanup_net
[  315.710476][   T65] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  315.710788][   T65] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[  315.711634][   T65] RSP: 0018:ffa0000000467938 EFLAGS: 00010286
[  315.711931][   T65] RAX: 00000000ffffffa6 RBX: ff1100000cece580 RCX: 1ff400000008ceed
[  315.712379][   T65] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cece63c
[  315.712710][   T65] RBP: ff1100000f5f9000 R08: 1fe22000019d9cc9 R09: ff110000090b2ed0
[  315.713046][   T65] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  315.713370][   T65] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  315.713705][   T65] FS:  0000000000000000(0000) GS:ff110000d5bc7000(0000) knlGS:0000000000000000
[  315.714247][   T65] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  315.714535][   T65] CR2: 0000556712e6ac50 CR3: 000000004d94d005 CR4: 0000000000771ef0
[  315.714878][   T65] PKRU: 55555554
[  315.715064][   T65] Call Trace:
[  315.715373][   T65]  <TASK>
[  315.715530][   T65]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  315.715843][   T65]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  315.716239][   T65]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[  315.716475][   T65]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[  315.716718][   T65]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  315.716968][   T65]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[  315.717205][   T65]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  315.717477][   T65]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[  315.717728][   T65]  ? netns_install (./include/linux/ns_common.h:26)
[  315.717984][   T65]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  315.718226][   T65]  cleanup_net (net/core/net_namespace.c:702)
[  315.718462][   T65]  ? net_passive_dec (./include/linux/llist.h:241)
[  315.718839][   T65]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  315.719081][   T65]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  315.719317][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.719564][   T65]  process_one_work (kernel/workqueue.c:3314)
[  315.719827][   T65]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  315.720083][   T65]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  315.720329][   T65]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  315.720698][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.720948][   T65]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  315.721187][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.721549][   T65]  kthread (kernel/kthread.c:436)
[  315.721740][   T65]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  315.722149][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.722385][   T65]  ret_from_fork (arch/x86/kernel/process.c:158)
[  315.722635][   T65]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  315.722934][   T65]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  315.723168][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.723559][   T65]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  315.729473][   T65] ------------[ cut here ]------------
| [  315.729626][   T65] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/65
| [  315.730087][   T65] Modules linked in:
| [  315.730471][   T65] Tainted: [W]=WARN
[  315.730570][   T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  315.730725][   T65] Workqueue: netns cleanup_net
[  315.730868][   T65] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  315.731034][   T65] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[  315.731476][   T65] RSP: 0018:ffa0000000467938 EFLAGS: 00010286
[  315.731639][   T65] RAX: 00000000ffffffa6 RBX: ff1100000cece040 RCX: 1ff400000008ceed
[  315.731827][   T65] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cece0fc
[  315.732006][   T65] RBP: ff1100000f709000 R08: 1fe22000019d9c21 R09: ff110000090b2ed0
[  315.732188][   T65] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[  315.732369][   T65] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  315.732560][   T65] FS:  0000000000000000(0000) GS:ff110000d5b47000(0000) knlGS:0000000000000000
[  315.732778][   T65] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  315.732930][   T65] CR2: 0000556712f80d5c CR3: 000000000e1a4005 CR4: 0000000000771ef0
[  315.733110][   T65] PKRU: 55555554
[  315.733202][   T65] Call Trace:
[  315.733293][   T65]  <TASK>
[  315.733359][   T65]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  315.733523][   T65]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  315.733677][   T65]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[  315.733809][   T65]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[  315.733940][   T65]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  315.734061][   T65]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[  315.734190][   T65]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  315.734317][   T65]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[  315.734443][   T65]  ? netns_install (./include/linux/ns_common.h:26)
[  315.734571][   T65]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  315.734692][   T65]  cleanup_net (net/core/net_namespace.c:702)
[  315.734819][   T65]  ? net_passive_dec (./include/linux/llist.h:241)
[  315.734941][   T65]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  315.735067][   T65]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  315.735195][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.735324][   T65]  process_one_work (kernel/workqueue.c:3314)
[  315.735450][   T65]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  315.735576][   T65]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  315.735700][   T65]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  315.735828][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.735950][   T65]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  315.736073][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.736193][   T65]  kthread (kernel/kthread.c:436)
[  315.736286][   T65]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  315.736438][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.736562][   T65]  ret_from_fork (arch/x86/kernel/process.c:158)
[  315.736685][   T65]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  315.736842][   T65]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  315.736969][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.737090][   T65]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  315.739453][   T65] ------------[ cut here ]------------
| [  315.739587][   T65] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/65
| [  315.740123][   T65] Modules linked in:
| [  315.740500][   T65] Tainted: [W]=WARN
[  315.740596][   T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  315.740748][   T65] Workqueue: netns cleanup_net
[  315.740886][   T65] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  315.741045][   T65] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[  315.741484][   T65] RSP: 0018:ffa0000000467938 EFLAGS: 00010286
[  315.741642][   T65] RAX: 00000000ffffffa6 RBX: ff110000056c58c0 RCX: 1ff400000008ceed
[  315.741828][   T65] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000056c597c
[  315.742014][   T65] RBP: ff11000007889000 R08: 1fe2200000ad8b31 R09: ff110000090b2ed0
[  315.742195][   T65] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[  315.742376][   T65] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  315.742565][   T65] FS:  0000000000000000(0000) GS:ff110000d5b47000(0000) knlGS:0000000000000000
[  315.742786][   T65] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  315.742943][   T65] CR2: 0000556712f80d5c CR3: 000000000e1a4005 CR4: 0000000000771ef0
[  315.743126][   T65] PKRU: 55555554
[  315.743218][   T65] Call Trace:
[  315.743307][   T65]  <TASK>
[  315.743374][   T65]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  315.743532][   T65]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  315.743686][   T65]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[  315.743812][   T65]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[  315.743935][   T65]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  315.744060][   T65]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[  315.744187][   T65]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  315.744314][   T65]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[  315.744441][   T65]  ? netns_install (./include/linux/ns_common.h:26)
[  315.744572][   T65]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  315.744697][   T65]  cleanup_net (net/core/net_namespace.c:702)
[  315.744825][   T65]  ? net_passive_dec (./include/linux/llist.h:241)
[  315.744946][   T65]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  315.745070][   T65]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  315.745195][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.745321][   T65]  process_one_work (kernel/workqueue.c:3314)
[  315.745446][   T65]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  315.745580][   T65]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  315.745708][   T65]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  315.745837][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.745958][   T65]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  315.746085][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.746209][   T65]  kthread (kernel/kthread.c:436)
[  315.746305][   T65]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  315.746460][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.746591][   T65]  ret_from_fork (arch/x86/kernel/process.c:158)
[  315.746714][   T65]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  315.746873][   T65]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  315.746995][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.747121][   T65]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  315.766079][   T65] ------------[ cut here ]------------
| [  315.766287][   T65] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/65
| [  315.766577][   T65] Modules linked in:
| [  315.766996][   T65] Tainted: [W]=WARN
[  315.767095][   T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  315.767258][   T65] Workqueue: netns cleanup_net
[  315.767399][   T65] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  315.767567][   T65] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[  315.768034][   T65] RSP: 0018:ffa0000000467748 EFLAGS: 00010286
[  315.768197][   T65] RAX: 00000000ffffffa6 RBX: ff110000056c5540 RCX: 1ff400000008ceaf
[  315.768388][   T65] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000056c55fc
[  315.768582][   T65] RBP: ff1100000f6fc000 R08: 1fe2200000ad8ac1 R09: ff110000090b2ed0
[  315.768778][   T65] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[  315.768970][   T65] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f6d1000
[  315.769162][   T65] FS:  0000000000000000(0000) GS:ff110000d5b47000(0000) knlGS:0000000000000000
[  315.769388][   T65] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  315.769554][   T65] CR2: 0000556712f80d5c CR3: 000000000e1a4005 CR4: 0000000000771ef0
[  315.769744][   T65] PKRU: 55555554
[  315.769847][   T65] Call Trace:
[  315.769942][   T65]  <TASK>
[  315.770010][   T65]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  315.770141][   T65]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  315.770242][   T65]  netif_close_many (net/core/dev.c:1804)
[  315.770369][   T65]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  315.770502][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.770630][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.770763][   T65]  ? __dev_close_many (net/core/dev.c:1781)
[  315.770894][   T65]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[  315.771057][   T65]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[  315.771218][   T65]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  315.771347][   T65]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  315.771509][   T65]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  315.771635][   T65]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  315.771768][   T65]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[  315.771928][   T65]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  315.772067][   T65]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  315.772197][   T65]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[  315.772324][   T65]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[  315.772451][   T65]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[  315.772585][   T65]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  315.772713][   T65]  ? netns_install (./include/linux/ns_common.h:26)
[  315.772906][   T65]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  315.773041][   T65]  cleanup_net (net/core/net_namespace.c:702)
[  315.773168][   T65]  ? net_passive_dec (./include/linux/llist.h:241)
[  315.773297][   T65]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  315.773427][   T65]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  315.773559][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.773688][   T65]  process_one_work (kernel/workqueue.c:3314)
[  315.773882][   T65]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  315.774011][   T65]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  315.774147][   T65]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  315.774286][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.774413][   T65]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  315.774548][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.774675][   T65]  kthread (kernel/kthread.c:436)
[  315.774828][   T65]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  315.774987][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.775171][   T65]  ret_from_fork (arch/x86/kernel/process.c:158)
[  315.775304][   T65]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  315.775465][   T65]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  315.775595][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.775723][   T65]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  315.839189][   T65] ------------[ cut here ]------------
| [  315.839431][   T65] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/65
| [  315.839791][   T65] Modules linked in:
| [  315.840405][   T65] Tainted: [W]=WARN
[  315.840565][   T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  315.840893][   T65] Workqueue: netns cleanup_net
[  315.841201][   T65] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  315.841545][   T65] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[  315.842187][   T65] RSP: 0018:ffa0000000467748 EFLAGS: 00010286
[  315.842504][   T65] RAX: 00000000ffffffa6 RBX: ff11000010887c40 RCX: 1ff400000008ceaf
[  315.842828][   T65] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010887cfc
[  315.843144][   T65] RBP: ff1100000f6d1000 R08: 1fe2200002110fa1 R09: ff110000090b2ed0
[  315.843465][   T65] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[  315.843807][   T65] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007899000
[  315.844176][   T65] FS:  0000000000000000(0000) GS:ff110000d5bc7000(0000) knlGS:0000000000000000
[  315.844558][   T65] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  315.844863][   T65] CR2: 00007f3b902d5f98 CR3: 000000004d94d006 CR4: 0000000000771ef0
[  315.845185][   T65] PKRU: 55555554
[  315.845521][   T65] Call Trace:
[  315.845780][   T65]  <TASK>
[  315.845997][   T65]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  315.846282][   T65]  ? notifier_call_chain (kernel/notifier.c:85)
[  315.846555][   T65]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  315.846797][   T65]  netif_close_many (net/core/dev.c:1804)
[  315.847067][   T65]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  315.847337][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.847602][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.847879][   T65]  ? __dev_close_many (net/core/dev.c:1781)
[  315.848240][   T65]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[  315.848560][   T65]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[  315.848886][   T65]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  315.849176][   T65]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  315.849444][   T65]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  315.849683][   T65]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  315.849953][   T65]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[  315.850230][   T65]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  315.850474][   T65]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  315.850675][   T65]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[  315.850897][   T65]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[  315.851085][   T65]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[  315.851267][   T65]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  315.851448][   T65]  ? netns_install (./include/linux/ns_common.h:26)
[  315.851628][   T65]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  315.851832][   T65]  cleanup_net (net/core/net_namespace.c:702)
[  315.852024][   T65]  ? net_passive_dec (./include/linux/llist.h:241)
[  315.852201][   T65]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  315.852382][   T65]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  315.852565][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.852748][   T65]  process_one_work (kernel/workqueue.c:3314)
[  315.852943][   T65]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  315.853119][   T65]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  315.853303][   T65]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  315.853519][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.853701][   T65]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  315.853897][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.854078][   T65]  kthread (kernel/kthread.c:436)
[  315.854226][   T65]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  315.854436][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.854702][   T65]  ret_from_fork (arch/x86/kernel/process.c:158)
[  315.854897][   T65]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  315.855106][   T65]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  315.855282][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.855546][   T65]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  315.882638][   T65] ------------[ cut here ]------------
| [  315.882867][   T65] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/65
| [  315.883140][   T65] Modules linked in:
| [  315.883546][   T65] Tainted: [W]=WARN
[  315.883646][   T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  315.883817][   T65] Workqueue: netns cleanup_net
[  315.883953][   T65] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  315.884120][   T65] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[  315.884621][   T65] RSP: 0018:ffa0000000467748 EFLAGS: 00010286
[  315.884791][   T65] RAX: 00000000ffffffa6 RBX: ff1100000c903380 RCX: 1ff400000008ceaf
[  315.884984][   T65] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c90343c
[  315.885171][   T65] RBP: ff11000007899000 R08: 1fe2200001920689 R09: ff110000090b2ed0
[  315.885361][   T65] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[  315.885557][   T65] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004677e0
[  315.885751][   T65] FS:  0000000000000000(0000) GS:ff110000d5b47000(0000) knlGS:0000000000000000
[  315.885981][   T65] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  315.886144][   T65] CR2: 00007f96080e9f98 CR3: 000000004d94d003 CR4: 0000000000771ef0
[  315.886339][   T65] PKRU: 55555554
[  315.886436][   T65] Call Trace:
[  315.886534][   T65]  <TASK>
[  315.886602][   T65]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  315.886730][   T65]  ? notifier_call_chain (kernel/notifier.c:85)
[  315.886863][   T65]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  315.886960][   T65]  netif_close_many (net/core/dev.c:1804)
[  315.887092][   T65]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  315.887219][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.887346][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.887474][   T65]  ? __dev_close_many (net/core/dev.c:1781)
[  315.887610][   T65]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[  315.887778][   T65]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[  315.887939][   T65]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  315.888068][   T65]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  315.888230][   T65]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  315.888359][   T65]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  315.888497][   T65]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[  315.888657][   T65]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  315.888792][   T65]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  315.888920][   T65]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[  315.889049][   T65]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[  315.889181][   T65]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[  315.889310][   T65]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  315.889442][   T65]  ? netns_install (./include/linux/ns_common.h:26)
[  315.889592][   T65]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  315.889725][   T65]  cleanup_net (net/core/net_namespace.c:702)
[  315.889858][   T65]  ? net_passive_dec (./include/linux/llist.h:241)
[  315.889984][   T65]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  315.890114][   T65]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  315.890241][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.890371][   T65]  process_one_work (kernel/workqueue.c:3314)
[  315.890510][   T65]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  315.890637][   T65]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  315.890772][   T65]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  315.890901][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.891027][   T65]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  315.891160][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.891291][   T65]  kthread (kernel/kthread.c:436)
[  315.891384][   T65]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  315.891549][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.891676][   T65]  ret_from_fork (arch/x86/kernel/process.c:158)
[  315.891807][   T65]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  315.891978][   T65]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  315.892106][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.892237][   T65]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  315.895407][   T65] ------------[ cut here ]------------
| [  315.895550][   T65] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/65
| [  315.895961][   T65] Modules linked in:
| [  315.896346][   T65] Tainted: [W]=WARN
[  315.896439][   T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  315.896601][   T65] Workqueue: netns cleanup_net
[  315.896731][   T65] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  315.896897][   T65] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[  315.897335][   T65] RSP: 0018:ffa0000000467878 EFLAGS: 00010286
[  315.897495][   T65] RAX: 00000000ffffffa6 RBX: ff1100000e1411c0 RCX: 1ff400000008ced5
[  315.897682][   T65] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e14127c
[  315.897868][   T65] RBP: ff1100000f6fc000 R08: 1fe2200001c28251 R09: ff110000090b2ed0
[  315.898052][   T65] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[  315.898245][   T65] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  315.898429][   T65] FS:  0000000000000000(0000) GS:ff110000d5b47000(0000) knlGS:0000000000000000
[  315.898650][   T65] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  315.898811][   T65] CR2: 00007f96080e9f98 CR3: 000000004d94d003 CR4: 0000000000771ef0
[  315.899001][   T65] PKRU: 55555554
[  315.899097][   T65] Call Trace:
[  315.899191][   T65]  <TASK>
[  315.899256][   T65]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  315.899412][   T65]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  315.899581][   T65]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  315.899708][   T65]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  315.899834][   T65]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[  315.899990][   T65]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  315.900121][   T65]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[  315.900249][   T65]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[  315.900370][   T65]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[  315.900503][   T65]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  315.900626][   T65]  ? netns_install (./include/linux/ns_common.h:26)
[  315.900749][   T65]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  315.900880][   T65]  cleanup_net (net/core/net_namespace.c:702)
[  315.901005][   T65]  ? net_passive_dec (./include/linux/llist.h:241)
[  315.901125][   T65]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  315.901254][   T65]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  315.901374][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.901503][   T65]  process_one_work (kernel/workqueue.c:3314)
[  315.901629][   T65]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  315.901752][   T65]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  315.902134][   T65]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  315.902265][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.902390][   T65]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  315.902521][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.902644][   T65]  kthread (kernel/kthread.c:436)
[  315.902739][   T65]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  315.902907][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.903030][   T65]  ret_from_fork (arch/x86/kernel/process.c:158)
[  315.903162][   T65]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  315.903320][   T65]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  315.903446][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.903578][   T65]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  315.906117][   T65] ------------[ cut here ]------------
| [  315.906248][   T65] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/65
| [  315.906498][   T65] Modules linked in:
| [  315.907667][   T65] Tainted: [W]=WARN
[  315.907814][   T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  315.907973][   T65] Workqueue: netns cleanup_net
[  315.908103][   T65] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  315.908265][   T65] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[  315.908721][   T65] RSP: 0018:ffa0000000467878 EFLAGS: 00010286
[  315.908927][   T65] RAX: 00000000ffffffa6 RBX: ff1100000e1403c0 RCX: 1ff400000008ced5
[  315.909159][   T65] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e14047c
[  315.909341][   T65] RBP: ff1100000f6d1000 R08: 1fe2200001c28091 R09: ff110000090b2ed0
[  315.909526][   T65] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[  315.909711][   T65] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  315.909949][   T65] FS:  0000000000000000(0000) GS:ff110000d5b47000(0000) knlGS:0000000000000000
[  315.910172][   T65] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  315.910329][   T65] CR2: 00007f96080e9f98 CR3: 000000004d94d003 CR4: 0000000000771ef0
[  315.910520][   T65] PKRU: 55555554
[  315.910612][   T65] Call Trace:
[  315.910704][   T65]  <TASK>
[  315.910822][   T65]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  315.910980][   T65]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  315.911132][   T65]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  315.911261][   T65]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  315.911386][   T65]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[  315.911548][   T65]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  315.911672][   T65]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[  315.911856][   T65]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[  315.911979][   T65]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[  315.912107][   T65]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  315.912231][   T65]  ? netns_install (./include/linux/ns_common.h:26)
[  315.912359][   T65]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  315.912495][   T65]  cleanup_net (net/core/net_namespace.c:702)
[  315.912620][   T65]  ? net_passive_dec (./include/linux/llist.h:241)
[  315.912741][   T65]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  315.912927][   T65]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  315.913050][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.913178][   T65]  process_one_work (kernel/workqueue.c:3314)
[  315.913307][   T65]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  315.913433][   T65]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  315.913566][   T65]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  315.913693][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.913862][   T65]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  315.913985][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.914107][   T65]  kthread (kernel/kthread.c:436)
[  315.914200][   T65]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  315.914353][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.914479][   T65]  ret_from_fork (arch/x86/kernel/process.c:158)
[  315.914607][   T65]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  315.914807][   T65]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  315.914933][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.915059][   T65]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  315.927057][   T65] ------------[ cut here ]------------
| [  315.927275][   T65] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/65
| [  315.927661][   T65] Modules linked in:
| [  315.928289][   T65] Tainted: [W]=WARN
[  315.928435][   T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  315.928685][   T65] Workqueue: netns cleanup_net
[  315.928895][   T65] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  315.929145][   T65] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[  315.929850][   T65] RSP: 0018:ffa0000000467878 EFLAGS: 00010286
[  315.930095][   T65] RAX: 00000000ffffffa6 RBX: ff1100000cd24c80 RCX: 1ff400000008ced5
[  315.930381][   T65] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cd24d3c
[  315.930673][   T65] RBP: ff11000007899000 R08: 1fe22000019a49a9 R09: ff110000090b2ed0
[  315.930959][   T65] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  315.931252][   T65] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  315.931543][   T65] FS:  0000000000000000(0000) GS:ff110000d5c47000(0000) knlGS:0000000000000000
[  315.931886][   T65] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  315.932146][   T65] CR2: 00007f2cb7cdb2a0 CR3: 000000004d94d005 CR4: 0000000000771ef0
[  315.932439][   T65] PKRU: 55555554
[  315.932589][   T65] Call Trace:
[  315.932737][   T65]  <TASK>
[  315.932852][   T65]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  315.933116][   T65]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  315.933358][   T65]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  315.933557][   T65]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  315.933744][   T65]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[  315.934136][   T65]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  315.934335][   T65]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[  315.934531][   T65]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[  315.934723][   T65]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[  315.935130][   T65]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  315.935358][   T65]  ? netns_install (./include/linux/ns_common.h:26)
[  315.935557][   T65]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  315.935928][   T65]  cleanup_net (net/core/net_namespace.c:702)
[  315.936285][   T65]  ? net_passive_dec (./include/linux/llist.h:241)
[  315.936474][   T65]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  315.936675][   T65]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  315.937020][   T65]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  315.937218][   T65]  process_one_work (kernel/workqueue.c:3314)
[  315.937414][   T65]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  315.937608][   T65]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  315.937971][   T65]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  315.938162][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.938355][   T65]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  315.938556][   T65]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  315.938743][   T65]  kthread (kernel/kthread.c:436)
[  315.939050][   T65]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  315.939286][   T65]  ? kthread_affine_node (kernel/kthread.c:378)
[  315.939477][   T65]  ret_from_fork (arch/x86/kernel/process.c:158)
[  315.939671][   T65]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  315.940070][   T65]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  315.940267][   T65]  ? 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:rtnetlink_event:notifier_call_chain:netif_change_tx_queue_len:rtnl_newlink
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:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:default_device_exit_batch
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:veth_newlink
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:ops_undo_list:cleanup_net:process_one_work
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:rtmsg_ifinfo:netif_state_change:linkwatch_sync_dev:rtnl_getlink
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